error with the expand.grid command

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error with the expand.grid command

mayur tade
 hello sir...
i am trying to extract the chlorophyll data of particular lat and lon from
the world chlorophyll data from the netcdf file in R. as i am new to R i am
facing the problem related to it when i am trying expand.grid command it is
showing me this message.....message is followed.....its my kind request
please help me with the same
ttt<-expand.grid(lon,lat,time)
Error in paste0(nmc[i], "=", if (is.numeric(x)) format(x) else x) :
  cannot coerce type 'closure' to vector of type 'character'

here is the print of my netcdf file for you kind information.....follow...

> print(tt)
File E:\chlorophyll data research student..mayur
t..KUFOS\1997\ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_
GEO_PML_OCx-199709-fv3.1.nc
<http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>
(NC_FORMAT_NETCDF4_CLASSIC):

     9 variables (excluding dimension variables):
        float MERIS_nobs_sum[lon,lat,time]
            _FillValue: 0
            long_name: Count of the number of observations from the MERIS
sensor contributing to this bin cell
            number_of_files_composited: 19
        float MODISA_nobs_sum[lon,lat,time]
            _FillValue: 0
            long_name: Count of the number of observations from the MODIS
(Aqua) sensor contributing to this bin cell
            number_of_files_composited: 19
        float SeaWiFS_nobs_sum[lon,lat,time]
            _FillValue: 0
            long_name: Count of the number of observations from the SeaWiFS
(GAC and LAC) sensor contributing to this bin cell
            number_of_files_composited: 19
        float VIIRS_nobs_sum[lon,lat,time]
            _FillValue: 0
            long_name: Count of the number of observations from the VIIRS
sensor contributing to this bin cell
            number_of_files_composited: 19
        float chlor_a[lon,lat,time]
            _FillValue: 9.96920996838687e+36
            long_name: Chlorophyll-a concentration in seawater (not
log-transformed), generated by SeaDAS using a blended combination of OCI
(OC4v6 + Hu's CI), OC3 and OC5, depending on water class memberships
            units: milligram m-3
            ancillary_variables: chlor_a_log10_rmsd chlor_a_log10_bias
            grid_mapping: crs
            standard_name: mass_concentration_of_chlorophyll_a_in_sea_water
            units_nonstandard: mg m^-3
            parameter_vocab_uri:
http://vocab.nerc.ac.uk/collection/P04/current/
        float chlor_a_log10_bias[lon,lat,time]
            _FillValue: 9.96920996838687e+36
            long_name: Bias of log10-transformed chlorophyll-a concentration
in seawater.
            grid_mapping: crs
            rel: uncertainty
            comment: Uncertainty lookups derived from file:
/data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
cci_chla_bias.dat
            ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
        float chlor_a_log10_rmsd[lon,lat,time]
            _FillValue: 9.96920996838687e+36
            long_name: Root-mean-square-difference of log10-transformed
chlorophyll-a concentration in seawater.
            grid_mapping: crs
            rel: uncertainty
            comment: Uncertainty lookups derived from file:
/data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
cci_chla_rmsd.dat
            ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
        int crs[time]
            grid_mapping_name: latitude_longitude
        float total_nobs_sum[lon,lat,time]
            _FillValue: 0
            long_name: Count of the total number of observations
contributing to this bin cell
            number_of_files_composited: 19

     3 dimensions:
        time  Size:1
            axis: T
            standard_name: time
            units: days since 1970-01-01 00:00:00
        lat  Size:4320
            units: degrees_north
            long_name: latitude
            standard_name: latitude
            valid_min: -89.9791641235352
            valid_max: 89.9791641235352
            axis: Y
        lon  Size:8640
            units: degrees_east
            long_name: longitude
            standard_name: longitude
            valid_min: -179.97917175293
            valid_max: 179.97917175293
            axis: X

    47 global attributes:
        Metadata_Conventions: Unidata Dataset Discovery v1.0
        cdm_data_type: Grid
        comment: See summary attribute
        creator_email: [hidden email]
        creator_name: Plymouth Marine Laboratory
        creator_url: http://esa-oceancolour-cci.org
        geospatial_lat_max: 90
        geospatial_lat_min: -90
        geospatial_lat_resolution: .04166666666666666666
        geospatial_lat_units: decimal degrees north
        geospatial_lon_max: 180
        geospatial_lon_min: -180
        geospatial_lon_resolution: .04166666666666666666
        geospatial_lon_units: decimal degrees east
        geospatial_vertical_max: 0
        geospatial_vertical_min: 0
        institution: Plymouth Marine Laboratory
        keywords: satellite,observation,ocean,ocean colour
        keywords_vocabulary: none
        license: ESA CCI Data Policy: free and open access.  When
referencing, please use: Ocean Colour Climate Change Initiative dataset,
Version <Version Number>, European Space Agency, available online at
http://www.esa-oceancolour-cci.org.  We would also appreciate being notified
of publications so that we can list them on the project website at
http://www.esa-oceancolour-cci.org/?q=publications
        naming_authority: uk.ac.pml
        number_of_optical_water_types: 14
        platform: Orbview-2,Aqua,Envisat,Suomi-NPP
        processing_level: Level-3
        project: Climate Change Initiative - European Space Agency
        references: http://www.esa-oceancolour-cci.org/
        sensor: SeaWiFS,MODIS,MERIS,VIIRS
        source: NASA SeaWiFS L2 R2014.0 LAC and GAC, MODIS-Aqua L1A, MERIS
L1B 3rd reprocessing inc OCL corrections, NASA VIIRS L2 R2014.0.1 (data
identical to R2014.0.2)
        spatial_resolution: 4km nominal at equator
        standard_name_vocabulary: NetCDF Climate and Forecast (CF) Metadata
Conventions Version 1.6
        title: ESA CCI Ocean Colour Product
        number_of_files_composited: 19
        creation_date: Tue Aug 23 09:00:23 2016
        date_created: Tue Aug 23 09:00:23 2016
        time_coverage_resolution: P1M
        time_coverage_duration: P1M
        start_date: 01-SEP-1997 00:00:00.000000
        stop_date: 30-SEP-1997 23:59:00.000000
        time_coverage_start: 199709010000Z
        time_coverage_end: 199709302359Z
        netcdf_file_type: NETCDF4_CLASSIC
        history: Source data were:
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970904-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970904-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970906-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970906-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970909-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970909-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970910-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970910-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970915-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970915-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970916-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970916-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970918-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970918-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970919-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970919-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970920-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970920-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970921-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970921-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970922-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970922-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970923-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970923-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970924-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970924-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970925-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970925-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970926-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970926-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970927-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970927-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970928-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970928-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970929-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970929-fv3.1.nc/>
,
ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
OCx_QAA-19970930-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970930-fv3.1.nc/>
;
netcdf_compositor_cci composites  Rrs_412, Rrs_443, Rrs_490, Rrs_510,
Rrs_555, Rrs_670, water_class1, water_class2, water_class3, water_class4,
water_class5, water_class6, water_class7, water_class8, water_class9,
water_class10, water_class11, water_class12, water_class13, water_class14,
atot_412, atot_443, atot_490, atot_510, atot_555, atot_670, aph_412,
aph_443, aph_490, aph_510, aph_555, aph_670, adg_412, adg_443, adg_490,
adg_510, adg_555, adg_670, bbp_412, bbp_443, bbp_490, bbp_510, bbp_555,
bbp_670, chlor_a, kd_490, chlor_a_log10_bias, Rrs_412_bias, Rrs_443_bias,
Rrs_490_bias, Rrs_510_bias, Rrs_555_bias, Rrs_670_bias, aph_412_bias,
aph_443_bias, aph_490_bias, aph_510_bias, aph_555_bias, aph_670_bias,
adg_412_bias, adg_443_bias, adg_490_bias, adg_510_bias, adg_555_bias,
adg_670_bias, kd_490_bias with --mean,  chlor_a_log10_rmsd, Rrs_412_rmsd,
Rrs_443_rmsd, Rrs_490_rmsd, Rrs_510_rmsd, Rrs_555_rmsd, Rrs_670_rmsd,
aph_412_rmsd, aph_443_rmsd, aph_490_rmsd, aph_510_rmsd, aph_555_rmsd,
aph_670_rmsd, adg_412_rmsd, adg_443_rmsd, adg_490_rmsd, adg_510_rmsd,
adg_555_rmsd, adg_670_rmsd, kd_490_rmsd with --root-mean-square, and
SeaWiFS_nobs, MODISA_nobs, MERIS_nobs, VIIRS_nobs, total_nobs - with --total
1471940520 Subsetted from
standardised_geo/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1M_
MONTHLY_4km_GEO_PML_OCx_QAA-199709-fv3.1.nc
<http://esacci-oc-l3s-oc_products-merged-1m_monthly_4km_geo_pml_ocx_qaa-199709-fv3.1.nc/>
to only include variables
MERIS_nobs_sum,MODISA_nobs_sum,SeaWiFS_nobs_sum,VIIRS_
nobs_sum,chlor_a,chlor_a_log10_bias,chlor_a_log10_rmsd,
crs,lat,lon,time,total_nobs_sum
        Conventions: CF-1.6
        product_version: 3.1
        summary: Data products generated by the Ocean Colour component of
the European Space Agency Climate Change Initiative project. These files are
daily composites of merged sensor (MERIS, MODIS Aqua, SeaWiFS LAC & GAC,
VIIRS) products.  MODIS Aqua and MERIS were band-shifted and bias-corrected
to SeaWiFS bands and values using a temporally and spatially varying scheme
based on the overlap years of 2003-2007.  VIIRS was band-shifted and
bias-corrected in a second stage against the MODIS Rrs that had already been
corrected to SeaWiFS levels, for the overlap period 2012-2013.  VIIRS and
SeaWiFS Rrs were derived from standard NASA L2 products; MERIS and MODIS
from a combination of NASA's l2gen (for basic sensor geometry corrections,
etc) and HYGEOS Polymer v3.5 (for atmospheric correction).  The Rrs were
binned to a sinusoidal 4km level-3 grid, and later to 4km geographic
projection, by Brockmann Consult's BEAM.  Derived products were generally
computed with the standard SeaDAS algorithms.  QAA IOPs were derived using
the standard SeaDAS algorithm but with a modified backscattering table to
match that used in the bandshifting.  The final chlorophyll is a combination
of OC4, Hu's CI and OC5, depending on the water class memberships.
Uncertainty estimates were added using the fuzzy water classifier and
uncertainty estimation algorithm of Tim Moore as documented in Jackson et al
(2017).
        tracking_id: 659b397a-953c-4814-a3e2-460d6218fcfa
        id:
ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-199709-fv3.1.nc
<http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>

        [[alternative HTML version deleted]]

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Re: error with the expand.grid command

Ben Tupper-2
Hello,

You will have much better success if you subscribe and post to the R-sig-geo mailing list rather than the R-help mailing list.  You can subscribe to that list here... https://www.r-project.org/mail.html <https://www.r-project.org/mail.html>

If you are open to other suggestions, here are a couple of other tips to help you get help.

Change your email client to send plain text rather than richly formatted messages.  Using richly formatted text will often result in a garbled message and always results in this little gem you can see a the bottom of your message...

> [[alternative HTML version deleted]]


More specifically to your problem, there isn't anyway for others to help you since we could not access your data (like the NCDF file) and variables (like lon, lat, time, tt and ttt).  Anything you can do to make the issue super easy for someone to help means you are more likely to get the help you seek.  There are some really nice tutorials on how to ask a question on a help list that will most likely score you the help you seek.  Here's an example... https://www.r-project.org/posting-guide.html <https://www.r-project.org/posting-guide.html> but there are more out there on the world wild web.

Best of luck and see you over on R-sig-geo!

Ben

> On Aug 9, 2018, at 2:20 AM, Mayur Tade <[hidden email]> wrote:
>
> hello sir...
> i am trying to extract the chlorophyll data of particular lat and lon from
> the world chlorophyll data from the netcdf file in R. as i am new to R i am
> facing the problem related to it when i am trying expand.grid command it is
> showing me this message.....message is followed.....its my kind request
> please help me with the same
> ttt<-expand.grid(lon,lat,time)
> Error in paste0(nmc[i], "=", if (is.numeric(x)) format(x) else x) :
>  cannot coerce type 'closure' to vector of type 'character'
>
> here is the print of my netcdf file for you kind information.....follow...
>
>> print(tt)
> File E:\chlorophyll data research student..mayur
> t..KUFOS\1997\ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_
> GEO_PML_OCx-199709-fv3.1.nc
> <http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>
> (NC_FORMAT_NETCDF4_CLASSIC):
>
>     9 variables (excluding dimension variables):
>        float MERIS_nobs_sum[lon,lat,time]
>            _FillValue: 0
>            long_name: Count of the number of observations from the MERIS
> sensor contributing to this bin cell
>            number_of_files_composited: 19
>        float MODISA_nobs_sum[lon,lat,time]
>            _FillValue: 0
>            long_name: Count of the number of observations from the MODIS
> (Aqua) sensor contributing to this bin cell
>            number_of_files_composited: 19
>        float SeaWiFS_nobs_sum[lon,lat,time]
>            _FillValue: 0
>            long_name: Count of the number of observations from the SeaWiFS
> (GAC and LAC) sensor contributing to this bin cell
>            number_of_files_composited: 19
>        float VIIRS_nobs_sum[lon,lat,time]
>            _FillValue: 0
>            long_name: Count of the number of observations from the VIIRS
> sensor contributing to this bin cell
>            number_of_files_composited: 19
>        float chlor_a[lon,lat,time]
>            _FillValue: 9.96920996838687e+36
>            long_name: Chlorophyll-a concentration in seawater (not
> log-transformed), generated by SeaDAS using a blended combination of OCI
> (OC4v6 + Hu's CI), OC3 and OC5, depending on water class memberships
>            units: milligram m-3
>            ancillary_variables: chlor_a_log10_rmsd chlor_a_log10_bias
>            grid_mapping: crs
>            standard_name: mass_concentration_of_chlorophyll_a_in_sea_water
>            units_nonstandard: mg m^-3
>            parameter_vocab_uri:
> http://vocab.nerc.ac.uk/collection/P04/current/
>        float chlor_a_log10_bias[lon,lat,time]
>            _FillValue: 9.96920996838687e+36
>            long_name: Bias of log10-transformed chlorophyll-a concentration
> in seawater.
>            grid_mapping: crs
>            rel: uncertainty
>            comment: Uncertainty lookups derived from file:
> /data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
> cci_chla_bias.dat
>            ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
>        float chlor_a_log10_rmsd[lon,lat,time]
>            _FillValue: 9.96920996838687e+36
>            long_name: Root-mean-square-difference of log10-transformed
> chlorophyll-a concentration in seawater.
>            grid_mapping: crs
>            rel: uncertainty
>            comment: Uncertainty lookups derived from file:
> /data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
> cci_chla_rmsd.dat
>            ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
>        int crs[time]
>            grid_mapping_name: latitude_longitude
>        float total_nobs_sum[lon,lat,time]
>            _FillValue: 0
>            long_name: Count of the total number of observations
> contributing to this bin cell
>            number_of_files_composited: 19
>
>     3 dimensions:
>        time  Size:1
>            axis: T
>            standard_name: time
>            units: days since 1970-01-01 00:00:00
>        lat  Size:4320
>            units: degrees_north
>            long_name: latitude
>            standard_name: latitude
>            valid_min: -89.9791641235352
>            valid_max: 89.9791641235352
>            axis: Y
>        lon  Size:8640
>            units: degrees_east
>            long_name: longitude
>            standard_name: longitude
>            valid_min: -179.97917175293
>            valid_max: 179.97917175293
>            axis: X
>
>    47 global attributes:
>        Metadata_Conventions: Unidata Dataset Discovery v1.0
>        cdm_data_type: Grid
>        comment: See summary attribute
>        creator_email: [hidden email]
>        creator_name: Plymouth Marine Laboratory
>        creator_url: http://esa-oceancolour-cci.org
>        geospatial_lat_max: 90
>        geospatial_lat_min: -90
>        geospatial_lat_resolution: .04166666666666666666
>        geospatial_lat_units: decimal degrees north
>        geospatial_lon_max: 180
>        geospatial_lon_min: -180
>        geospatial_lon_resolution: .04166666666666666666
>        geospatial_lon_units: decimal degrees east
>        geospatial_vertical_max: 0
>        geospatial_vertical_min: 0
>        institution: Plymouth Marine Laboratory
>        keywords: satellite,observation,ocean,ocean colour
>        keywords_vocabulary: none
>        license: ESA CCI Data Policy: free and open access.  When
> referencing, please use: Ocean Colour Climate Change Initiative dataset,
> Version <Version Number>, European Space Agency, available online at
> http://www.esa-oceancolour-cci.org.  We would also appreciate being notified
> of publications so that we can list them on the project website at
> http://www.esa-oceancolour-cci.org/?q=publications
>        naming_authority: uk.ac.pml
>        number_of_optical_water_types: 14
>        platform: Orbview-2,Aqua,Envisat,Suomi-NPP
>        processing_level: Level-3
>        project: Climate Change Initiative - European Space Agency
>        references: http://www.esa-oceancolour-cci.org/
>        sensor: SeaWiFS,MODIS,MERIS,VIIRS
>        source: NASA SeaWiFS L2 R2014.0 LAC and GAC, MODIS-Aqua L1A, MERIS
> L1B 3rd reprocessing inc OCL corrections, NASA VIIRS L2 R2014.0.1 (data
> identical to R2014.0.2)
>        spatial_resolution: 4km nominal at equator
>        standard_name_vocabulary: NetCDF Climate and Forecast (CF) Metadata
> Conventions Version 1.6
>        title: ESA CCI Ocean Colour Product
>        number_of_files_composited: 19
>        creation_date: Tue Aug 23 09:00:23 2016
>        date_created: Tue Aug 23 09:00:23 2016
>        time_coverage_resolution: P1M
>        time_coverage_duration: P1M
>        start_date: 01-SEP-1997 00:00:00.000000
>        stop_date: 30-SEP-1997 23:59:00.000000
>        time_coverage_start: 199709010000Z
>        time_coverage_end: 199709302359Z
>        netcdf_file_type: NETCDF4_CLASSIC
>        history: Source data were:
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970904-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970904-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970906-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970906-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970909-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970909-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970910-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970910-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970915-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970915-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970916-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970916-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970918-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970918-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970919-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970919-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970920-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970920-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970921-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970921-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970922-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970922-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970923-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970923-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970924-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970924-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970925-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970925-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970926-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970926-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970927-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970927-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970928-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970928-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970929-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970929-fv3.1.nc/>
> ,
> ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
> OCx_QAA-19970930-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970930-fv3.1.nc/>
> ;
> netcdf_compositor_cci composites  Rrs_412, Rrs_443, Rrs_490, Rrs_510,
> Rrs_555, Rrs_670, water_class1, water_class2, water_class3, water_class4,
> water_class5, water_class6, water_class7, water_class8, water_class9,
> water_class10, water_class11, water_class12, water_class13, water_class14,
> atot_412, atot_443, atot_490, atot_510, atot_555, atot_670, aph_412,
> aph_443, aph_490, aph_510, aph_555, aph_670, adg_412, adg_443, adg_490,
> adg_510, adg_555, adg_670, bbp_412, bbp_443, bbp_490, bbp_510, bbp_555,
> bbp_670, chlor_a, kd_490, chlor_a_log10_bias, Rrs_412_bias, Rrs_443_bias,
> Rrs_490_bias, Rrs_510_bias, Rrs_555_bias, Rrs_670_bias, aph_412_bias,
> aph_443_bias, aph_490_bias, aph_510_bias, aph_555_bias, aph_670_bias,
> adg_412_bias, adg_443_bias, adg_490_bias, adg_510_bias, adg_555_bias,
> adg_670_bias, kd_490_bias with --mean,  chlor_a_log10_rmsd, Rrs_412_rmsd,
> Rrs_443_rmsd, Rrs_490_rmsd, Rrs_510_rmsd, Rrs_555_rmsd, Rrs_670_rmsd,
> aph_412_rmsd, aph_443_rmsd, aph_490_rmsd, aph_510_rmsd, aph_555_rmsd,
> aph_670_rmsd, adg_412_rmsd, adg_443_rmsd, adg_490_rmsd, adg_510_rmsd,
> adg_555_rmsd, adg_670_rmsd, kd_490_rmsd with --root-mean-square, and
> SeaWiFS_nobs, MODISA_nobs, MERIS_nobs, VIIRS_nobs, total_nobs - with --total
> 1471940520 Subsetted from
> standardised_geo/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1M_
> MONTHLY_4km_GEO_PML_OCx_QAA-199709-fv3.1.nc
> <http://esacci-oc-l3s-oc_products-merged-1m_monthly_4km_geo_pml_ocx_qaa-199709-fv3.1.nc/>
> to only include variables
> MERIS_nobs_sum,MODISA_nobs_sum,SeaWiFS_nobs_sum,VIIRS_
> nobs_sum,chlor_a,chlor_a_log10_bias,chlor_a_log10_rmsd,
> crs,lat,lon,time,total_nobs_sum
>        Conventions: CF-1.6
>        product_version: 3.1
>        summary: Data products generated by the Ocean Colour component of
> the European Space Agency Climate Change Initiative project. These files are
> daily composites of merged sensor (MERIS, MODIS Aqua, SeaWiFS LAC & GAC,
> VIIRS) products.  MODIS Aqua and MERIS were band-shifted and bias-corrected
> to SeaWiFS bands and values using a temporally and spatially varying scheme
> based on the overlap years of 2003-2007.  VIIRS was band-shifted and
> bias-corrected in a second stage against the MODIS Rrs that had already been
> corrected to SeaWiFS levels, for the overlap period 2012-2013.  VIIRS and
> SeaWiFS Rrs were derived from standard NASA L2 products; MERIS and MODIS
> from a combination of NASA's l2gen (for basic sensor geometry corrections,
> etc) and HYGEOS Polymer v3.5 (for atmospheric correction).  The Rrs were
> binned to a sinusoidal 4km level-3 grid, and later to 4km geographic
> projection, by Brockmann Consult's BEAM.  Derived products were generally
> computed with the standard SeaDAS algorithms.  QAA IOPs were derived using
> the standard SeaDAS algorithm but with a modified backscattering table to
> match that used in the bandshifting.  The final chlorophyll is a combination
> of OC4, Hu's CI and OC5, depending on the water class memberships.
> Uncertainty estimates were added using the fuzzy water classifier and
> uncertainty estimation algorithm of Tim Moore as documented in Jackson et al
> (2017).
>        tracking_id: 659b397a-953c-4814-a3e2-460d6218fcfa
>        id:
> ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-199709-fv3.1.nc
> <http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> [hidden email] mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org

Ecological Forecasting: https://eco.bigelow.org/






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Re: error with the expand.grid command

R help mailing list-2
In reply to this post by mayur tade
In my experience, error messages that reference a closure usually mean that you have supplied a function where you aren't supposed to.

In this case, I'd look and see if lon, lat, or time is a function (by accident, of course).

More specifically, right now in one of my R sessions, I get:

> class(time)
[1] "function"
> find('time')
[1] "package:stats"

--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
Lab cell 925-724-7509
 
 

´╗┐On 8/8/18, 11:20 PM, "R-help on behalf of Mayur Tade" <[hidden email] on behalf of [hidden email]> wrote:

     hello sir...
    i am trying to extract the chlorophyll data of particular lat and lon from
    the world chlorophyll data from the netcdf file in R. as i am new to R i am
    facing the problem related to it when i am trying expand.grid command it is
    showing me this message.....message is followed.....its my kind request
    please help me with the same
    ttt<-expand.grid(lon,lat,time)
    Error in paste0(nmc[i], "=", if (is.numeric(x)) format(x) else x) :
      cannot coerce type 'closure' to vector of type 'character'
   
    here is the print of my netcdf file for you kind information.....follow...
   
    > print(tt)
    File E:\chlorophyll data research student..mayur
    t..KUFOS\1997\ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_
    GEO_PML_OCx-199709-fv3.1.nc
    <http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>
    (NC_FORMAT_NETCDF4_CLASSIC):
   
         9 variables (excluding dimension variables):
            float MERIS_nobs_sum[lon,lat,time]
                _FillValue: 0
                long_name: Count of the number of observations from the MERIS
    sensor contributing to this bin cell
                number_of_files_composited: 19
            float MODISA_nobs_sum[lon,lat,time]
                _FillValue: 0
                long_name: Count of the number of observations from the MODIS
    (Aqua) sensor contributing to this bin cell
                number_of_files_composited: 19
            float SeaWiFS_nobs_sum[lon,lat,time]
                _FillValue: 0
                long_name: Count of the number of observations from the SeaWiFS
    (GAC and LAC) sensor contributing to this bin cell
                number_of_files_composited: 19
            float VIIRS_nobs_sum[lon,lat,time]
                _FillValue: 0
                long_name: Count of the number of observations from the VIIRS
    sensor contributing to this bin cell
                number_of_files_composited: 19
            float chlor_a[lon,lat,time]
                _FillValue: 9.96920996838687e+36
                long_name: Chlorophyll-a concentration in seawater (not
    log-transformed), generated by SeaDAS using a blended combination of OCI
    (OC4v6 + Hu's CI), OC3 and OC5, depending on water class memberships
                units: milligram m-3
                ancillary_variables: chlor_a_log10_rmsd chlor_a_log10_bias
                grid_mapping: crs
                standard_name: mass_concentration_of_chlorophyll_a_in_sea_water
                units_nonstandard: mg m^-3
                parameter_vocab_uri:
    http://vocab.nerc.ac.uk/collection/P04/current/
            float chlor_a_log10_bias[lon,lat,time]
                _FillValue: 9.96920996838687e+36
                long_name: Bias of log10-transformed chlorophyll-a concentration
    in seawater.
                grid_mapping: crs
                rel: uncertainty
                comment: Uncertainty lookups derived from file:
    /data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
    cci_chla_bias.dat
                ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
            float chlor_a_log10_rmsd[lon,lat,time]
                _FillValue: 9.96920996838687e+36
                long_name: Root-mean-square-difference of log10-transformed
    chlorophyll-a concentration in seawater.
                grid_mapping: crs
                rel: uncertainty
                comment: Uncertainty lookups derived from file:
    /data/datasets/CCI/v3.1-production/stage09b-uncertainty_tables/chlor_a/
    cci_chla_rmsd.dat
                ref: http://www.esa-oceancolour-cci.org/?q=webfm_send/581
            int crs[time]
                grid_mapping_name: latitude_longitude
            float total_nobs_sum[lon,lat,time]
                _FillValue: 0
                long_name: Count of the total number of observations
    contributing to this bin cell
                number_of_files_composited: 19
   
         3 dimensions:
            time  Size:1
                axis: T
                standard_name: time
                units: days since 1970-01-01 00:00:00
            lat  Size:4320
                units: degrees_north
                long_name: latitude
                standard_name: latitude
                valid_min: -89.9791641235352
                valid_max: 89.9791641235352
                axis: Y
            lon  Size:8640
                units: degrees_east
                long_name: longitude
                standard_name: longitude
                valid_min: -179.97917175293
                valid_max: 179.97917175293
                axis: X
   
        47 global attributes:
            Metadata_Conventions: Unidata Dataset Discovery v1.0
            cdm_data_type: Grid
            comment: See summary attribute
            creator_email: [hidden email]
            creator_name: Plymouth Marine Laboratory
            creator_url: http://esa-oceancolour-cci.org
            geospatial_lat_max: 90
            geospatial_lat_min: -90
            geospatial_lat_resolution: .04166666666666666666
            geospatial_lat_units: decimal degrees north
            geospatial_lon_max: 180
            geospatial_lon_min: -180
            geospatial_lon_resolution: .04166666666666666666
            geospatial_lon_units: decimal degrees east
            geospatial_vertical_max: 0
            geospatial_vertical_min: 0
            institution: Plymouth Marine Laboratory
            keywords: satellite,observation,ocean,ocean colour
            keywords_vocabulary: none
            license: ESA CCI Data Policy: free and open access.  When
    referencing, please use: Ocean Colour Climate Change Initiative dataset,
    Version <Version Number>, European Space Agency, available online at
    http://www.esa-oceancolour-cci.org.  We would also appreciate being notified
    of publications so that we can list them on the project website at
    http://www.esa-oceancolour-cci.org/?q=publications
            naming_authority: uk.ac.pml
            number_of_optical_water_types: 14
            platform: Orbview-2,Aqua,Envisat,Suomi-NPP
            processing_level: Level-3
            project: Climate Change Initiative - European Space Agency
            references: http://www.esa-oceancolour-cci.org/
            sensor: SeaWiFS,MODIS,MERIS,VIIRS
            source: NASA SeaWiFS L2 R2014.0 LAC and GAC, MODIS-Aqua L1A, MERIS
    L1B 3rd reprocessing inc OCL corrections, NASA VIIRS L2 R2014.0.1 (data
    identical to R2014.0.2)
            spatial_resolution: 4km nominal at equator
            standard_name_vocabulary: NetCDF Climate and Forecast (CF) Metadata
    Conventions Version 1.6
            title: ESA CCI Ocean Colour Product
            number_of_files_composited: 19
            creation_date: Tue Aug 23 09:00:23 2016
            date_created: Tue Aug 23 09:00:23 2016
            time_coverage_resolution: P1M
            time_coverage_duration: P1M
            start_date: 01-SEP-1997 00:00:00.000000
            stop_date: 30-SEP-1997 23:59:00.000000
            time_coverage_start: 199709010000Z
            time_coverage_end: 199709302359Z
            netcdf_file_type: NETCDF4_CLASSIC
            history: Source data were:
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970904-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970904-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970906-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970906-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970909-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970909-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970910-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970910-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970915-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970915-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970916-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970916-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970918-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970918-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970919-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970919-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970920-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970920-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970921-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970921-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970922-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970922-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970923-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970923-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970924-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970924-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970925-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970925-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970926-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970926-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970927-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970927-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970928-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970928-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970929-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970929-fv3.1.nc/>
    ,
    ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_
    OCx_QAA-19970930-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1d_daily_4km_geo_pml_ocx_qaa-19970930-fv3.1.nc/>
    ;
    netcdf_compositor_cci composites  Rrs_412, Rrs_443, Rrs_490, Rrs_510,
    Rrs_555, Rrs_670, water_class1, water_class2, water_class3, water_class4,
    water_class5, water_class6, water_class7, water_class8, water_class9,
    water_class10, water_class11, water_class12, water_class13, water_class14,
    atot_412, atot_443, atot_490, atot_510, atot_555, atot_670, aph_412,
    aph_443, aph_490, aph_510, aph_555, aph_670, adg_412, adg_443, adg_490,
    adg_510, adg_555, adg_670, bbp_412, bbp_443, bbp_490, bbp_510, bbp_555,
    bbp_670, chlor_a, kd_490, chlor_a_log10_bias, Rrs_412_bias, Rrs_443_bias,
    Rrs_490_bias, Rrs_510_bias, Rrs_555_bias, Rrs_670_bias, aph_412_bias,
    aph_443_bias, aph_490_bias, aph_510_bias, aph_555_bias, aph_670_bias,
    adg_412_bias, adg_443_bias, adg_490_bias, adg_510_bias, adg_555_bias,
    adg_670_bias, kd_490_bias with --mean,  chlor_a_log10_rmsd, Rrs_412_rmsd,
    Rrs_443_rmsd, Rrs_490_rmsd, Rrs_510_rmsd, Rrs_555_rmsd, Rrs_670_rmsd,
    aph_412_rmsd, aph_443_rmsd, aph_490_rmsd, aph_510_rmsd, aph_555_rmsd,
    aph_670_rmsd, adg_412_rmsd, adg_443_rmsd, adg_490_rmsd, adg_510_rmsd,
    adg_555_rmsd, adg_670_rmsd, kd_490_rmsd with --root-mean-square, and
    SeaWiFS_nobs, MODISA_nobs, MERIS_nobs, VIIRS_nobs, total_nobs - with --total
    1471940520 Subsetted from
    standardised_geo/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1M_
    MONTHLY_4km_GEO_PML_OCx_QAA-199709-fv3.1.nc
    <http://esacci-oc-l3s-oc_products-merged-1m_monthly_4km_geo_pml_ocx_qaa-199709-fv3.1.nc/>
    to only include variables
    MERIS_nobs_sum,MODISA_nobs_sum,SeaWiFS_nobs_sum,VIIRS_
    nobs_sum,chlor_a,chlor_a_log10_bias,chlor_a_log10_rmsd,
    crs,lat,lon,time,total_nobs_sum
            Conventions: CF-1.6
            product_version: 3.1
            summary: Data products generated by the Ocean Colour component of
    the European Space Agency Climate Change Initiative project. These files are
    daily composites of merged sensor (MERIS, MODIS Aqua, SeaWiFS LAC & GAC,
    VIIRS) products.  MODIS Aqua and MERIS were band-shifted and bias-corrected
    to SeaWiFS bands and values using a temporally and spatially varying scheme
    based on the overlap years of 2003-2007.  VIIRS was band-shifted and
    bias-corrected in a second stage against the MODIS Rrs that had already been
    corrected to SeaWiFS levels, for the overlap period 2012-2013.  VIIRS and
    SeaWiFS Rrs were derived from standard NASA L2 products; MERIS and MODIS
    from a combination of NASA's l2gen (for basic sensor geometry corrections,
    etc) and HYGEOS Polymer v3.5 (for atmospheric correction).  The Rrs were
    binned to a sinusoidal 4km level-3 grid, and later to 4km geographic
    projection, by Brockmann Consult's BEAM.  Derived products were generally
    computed with the standard SeaDAS algorithms.  QAA IOPs were derived using
    the standard SeaDAS algorithm but with a modified backscattering table to
    match that used in the bandshifting.  The final chlorophyll is a combination
    of OC4, Hu's CI and OC5, depending on the water class memberships.
    Uncertainty estimates were added using the fuzzy water classifier and
    uncertainty estimation algorithm of Tim Moore as documented in Jackson et al
    (2017).
            tracking_id: 659b397a-953c-4814-a3e2-460d6218fcfa
            id:
    ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-199709-fv3.1.nc
    <http://esacci-oc-l3s-chlor_a-merged-1m_monthly_4km_geo_pml_ocx-199709-fv3.1.nc/>
   
    [[alternative HTML version deleted]]
   
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______________________________________________
[hidden email] mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.