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ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| Dataset Title: | Photosynthetic pigments of water column samples analyzed using High Performance Liquid Chromatography (HPLC), sampled during the Palmer LTER field seasons at Palmer Station, Antarctica, 1991 - 2015. 
|
| Institution: | National Science Foundation (Dataset ID: StationHighPerformanceLiquidChromotographyPigments) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
study_name {
String cf_role "timeseries_id";
String column_name "studyName";
String comment "Study name";
String ioos_category "Identifier";
String long_name "Study";
}
time {
String _CoordinateAxisType "Time";
Float64 actual_range 6.9124584e+8, 1.4266368e+9;
String axis "T";
String calendar "proleptic_gregorian";
Float64 column_id 1960;
String column_name "col_1960";
String ioos_category "Time";
String long_name "Time";
String lter_column_description "date and time";
String lter_column_name "Datetime GMT";
String lter_mscale "dateTime";
String standard_name "time";
String time_origin "01-JAN-1970 00:00:00";
String units "seconds since 1970-01-01T00:00:00Z";
}
depth {
String _CoordinateAxisType "Height";
String _CoordinateZisPositive "down";
Float64 _FillValue NaN;
Float64 actual_range 0.0, 230.0;
String axis "Z";
Float64 colorBarMaximum 8000.0;
Float64 colorBarMinimum -8000.0;
String colorBarPalette "TopographyDepth";
Float64 column_id 1966;
String column_name "col_1966";
String ioos_category "Location";
String long_name "Depth";
String lter_column_description "measurement or sample collection distance from water column surface";
String lter_column_name "Depth";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "m";
String lter_units_string "meter";
String positive "down";
String standard_name "depth";
String units "m";
String units_conventions "AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -65.0375, -64.0;
String axis "Y";
Float64 colorBarMaximum 90.0;
Float64 colorBarMinimum -90.0;
Float64 column_id 1961;
String column_name "col_1961";
String ioos_category "Location";
String long_name "Latitude";
String lter_column_description "latitude measured from the equator in decimal degrees, South is negative";
String lter_column_name "Latitude dec. deg.";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "º";
String lter_units_string "degree";
String standard_name "latitude";
String units "degrees_north";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
longitude {
String _CoordinateAxisType "Lon";
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -65.03016667, -32.7655;
String axis "X";
Float64 colorBarMaximum 180.0;
Float64 colorBarMinimum -180.0;
Float64 column_id 1962;
String column_name "col_1962";
String ioos_category "Location";
String long_name "Longitude";
String lter_column_description "longitude measured from the Prime Meridian in decimal degrees, West is negative";
String lter_column_name "Longitude dec. deg";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "º";
String lter_units_string "degree";
String standard_name "longitude";
String units "degrees_east";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
event {
Int16 _FillValue 32767;
Int16 actual_range 0, 587;
Float64 column_id 2910;
String column_name "col_2910";
String ioos_category "Unknown";
String long_name "Event";
String lter_column_description "sequence of cruise happenings ordered by time";
String lter_column_name "Event Number";
String lter_mscale "interval";
String lter_num_type "real";
String lter_units_string "number";
String units_conventions "EML-2.0.1,EML-2.1.0,EML-LTER";
}
julian_day {
Int16 _FillValue 32767;
Int16 actual_range 1, 365;
Float64 column_id 1963;
String column_name "col_1963";
String ioos_category "Time";
String long_name "Julian Day";
String lter_column_description "julian day of measurement";
String lter_column_name "Julian day";
String lter_mscale "nominal";
}
station {
Float64 column_id 1964;
String column_name "col_1964";
String ioos_category "Identifier";
String long_name "Station";
String lter_column_description "Palmer LTER grid station";
String lter_column_name "Station name";
String lter_mscale "nominal";
}
irradiance {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 0, 100;
Float64 colorBarMaximum 100.0;
Float64 colorBarMinimum 0.0;
Float64 column_id 1965;
String column_name "col_1965";
String ioos_category "Unknown";
String long_name "Irradiance";
String lter_column_description "The ratio of two light measurements incident on horizontal surfaces at two locations.";
String lter_column_name "Irradiance";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "%";
String lter_units_string "percent";
String units "percent";
String units_conventions "BNZ-LTER,CAP-LTER,CDR-LTER,FCE-LTER,GCE-LTER,HBR-LTER,KNZ-LTER,MCM-LTER,NTL-LTER,NWT-LTER,PAL-LTER,PIE-LTER,SGS-LTER";
}
chlorophyllide_a {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 27.5385;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 2911;
String column_name "col_2911";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "chlorophyllide a";
String lter_column_name "Chlorophyllide";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
chlorophyll_c3 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 8.84428;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 1983;
String column_name "col_1983";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "chlorophyll c3";
String lter_column_name "Chlorophyll c3";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
chlorophyll_c2 {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 8.1229026886928;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 1984;
String column_name "col_1984";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "chlorophyll c2";
String lter_column_name "Chlorophyll c2";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
chlorophyll_c1 {
Float64 _FillValue 9.969209968386869e+36;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 1985;
String column_name "col_1985";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "chlorophyll c1";
String lter_column_name "Chlorophyll c1";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
peridinin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 20.9647;
Float64 column_id 1986;
String column_name "col_1986";
String ioos_category "Unknown";
String long_name "Peridinin";
String lter_column_description "peridinin";
String lter_column_name "Peridinin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
phaeophorbide {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.373813651;
Float64 column_id 2912;
String column_name "col_2912";
String ioos_category "Unknown";
String long_name "Phaeophorbide";
String lter_column_description "phaeorphorbide";
String lter_column_name "Phaeophorbide";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
a_19_butanoyloxyfucoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 35.4387;
Float64 column_id 1987;
String column_name "col_1987";
String ioos_category "Unknown";
String long_name "19 Butanoyloxyfucoxanthin";
String lter_column_description "19'-butanoyloxyfucoxanthin";
String lter_column_name "19'-butanoyloxyfucoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
fucoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0031, 201.67;
Float64 column_id 1988;
String column_name "col_1988";
String ioos_category "Unknown";
String long_name "Fucoxanthin";
String lter_column_description "fucoxanthin";
String lter_column_name "Fucoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
neoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.906895088221323;
Float64 column_id 1989;
String column_name "col_1989";
String ioos_category "Unknown";
String long_name "Neoxanthin";
String lter_column_description "neoxanthin";
String lter_column_name "Neoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
prasinoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 15.5687;
Float64 column_id 1990;
String column_name "col_1990";
String ioos_category "Unknown";
String long_name "Prasinoxanthin";
String lter_column_description "prasinoxanthin";
String lter_column_name "Prasinoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
a_19_hexanoyloxyfucoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0038, 67.3778;
Float64 column_id 1991;
String column_name "col_1991";
String ioos_category "Unknown";
String long_name "19 Hexanoyloxyfucoxanthin";
String lter_column_description "19'-hexanoyloxyfucoxanthin";
String lter_column_name "19'-hexanoyloxyfucoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
violaxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.221033374;
Float64 column_id 2913;
String column_name "col_2913";
String ioos_category "Unknown";
String long_name "Violaxanthin";
String lter_column_description "violaxanthin";
String lter_column_name "Violaxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
diadinoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0026, 26.0503;
Float64 column_id 1992;
String column_name "col_1992";
String ioos_category "Unknown";
String long_name "Diadinoxanthin";
String lter_column_description "diadinoxanthin";
String lter_column_name "Diadinoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
antheraxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0029, 2.3373;
Float64 column_id 2914;
String column_name "col_2914";
String ioos_category "Unknown";
String long_name "Antheraxanthin";
String lter_column_description "antheraxanthin";
String lter_column_name "Antheraxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
alloxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 61.0057;
Float64 column_id 1993;
String column_name "col_1993";
String ioos_category "Unknown";
String long_name "Alloxanthin";
String lter_column_description "alloxanthin";
String lter_column_name "Alloxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
diatoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0039, 17.4696;
Float64 column_id 1994;
String column_name "col_1994";
String ioos_category "Unknown";
String long_name "Diatoxanthin";
String lter_column_description "diatoxanthin";
String lter_column_name "Diatoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
zeaxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 5.60999;
Float64 column_id 1995;
String column_name "col_1995";
String ioos_category "Unknown";
String long_name "Zeaxanthin";
String lter_column_description "zeaxanthin";
String lter_column_name "Zeaxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
lutein {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.0088, 12.4298;
Float64 column_id 1996;
String column_name "col_1996";
String ioos_category "Unknown";
String long_name "Lutein";
String lter_column_description "lutein";
String lter_column_name "Lutein";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
crocoxanthin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.097400798;
Float64 column_id 1997;
String column_name "col_1997";
String ioos_category "Unknown";
String long_name "Crocoxanthin";
String lter_column_description "crocoxanthin";
String lter_column_name "Crocoxanthin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
echinenone {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 2.333381984;
Float64 column_id 2915;
String column_name "col_2915";
String ioos_category "Unknown";
String long_name "Echinenone";
String lter_column_description "echinenone";
String lter_column_name "Echinenone";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
chlorophyll_b {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 87.4699;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 1998;
String column_name "col_1998";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "chlorophyll b";
String lter_column_name "Chlorophyll b";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
divinyl_chlorophyll_a {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range -0.186305217198904, 0.563673105611564;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 2916;
String column_name "col_2916";
String ioos_category "Ocean Color";
String long_name "Concentration Of Chlorophyll In Sea Water";
String lter_column_description "divinyl chlorophyll a concentration";
String lter_column_name "Divinyl Chlorophyll a";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "concentration_of_chlorophyll_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
chlorophyll_a {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 387.415;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.03;
String colorBarScale "Log";
Float64 column_id 1999;
String column_name "col_1999";
String ioos_category "Ocean Color";
String long_name "Mass Concentration Of Chlorophyll A In Sea Water";
String lter_column_description "chlorophyll a concentration";
String lter_column_name "Chlorophyll a";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
lycopene {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 0.076655799;
Float64 column_id 2917;
String column_name "col_2917";
String ioos_category "Unknown";
String long_name "Lycopene";
String lter_column_description "lycopene";
String lter_column_name "Lycopene";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
phaeophytin {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.11053192483164;
Float64 column_id 2918;
String column_name "col_2918";
String ioos_category "Unknown";
String long_name "Phaeophytin";
String lter_column_description "phaeophytin a";
String lter_column_name "Phaeophytin";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
alpha_carotene {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 1.0858;
Float64 column_id 2001;
String column_name "col_2001";
String ioos_category "Unknown";
String long_name "Alpha Carotene";
String lter_column_description "alpha carotene";
String lter_column_name "Alpha carotene";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
beta_carotene {
Float64 _FillValue 9.969209968386869e+36;
Float64 actual_range 0.0, 13.4781;
Float64 column_id 2002;
String column_name "col_2002";
String ioos_category "Unknown";
String long_name "Beta Carotene";
String lter_column_description "beta carotene";
String lter_column_name "Beta carotene";
String lter_mscale "ratio";
String lter_num_type "real";
String lter_units "µg/L";
String lter_units_string "microgramPerLiter";
String units "ug L-1";
String units_conventions "ARC-LTER,EML-LTER,NTL-LTER,PIE-LTER";
}
notes {
Float64 column_id 2003;
String column_name "col_2003";
String ioos_category "Unknown";
String long_name "Notes";
String lter_column_description "text field to describe a log entry (ex. event log)";
String lter_column_name "Notes";
String lter_mscale "nominal";
}
}
NC_GLOBAL {
String _NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6";
String acknowledgement "Funding and support provided by the National Science Foundation";
String cdm_data_type "TimeSeries";
String cdm_timeseries_variables "study_name";
String comment "The Palmer, Antarctica, Long-Term Ecological Research project is a member site of the Long-Term Ecological Research program, a network of sites investigating diverse biomes. A team of researchers seeks to understand the structure and function of the Western Antarctic Peninsula's marine and terrestrial ecosystems in the context of seasonal-to-interannual atmospheric and sea ice dynamics, as well as long-term climate change. The PAL measurement system (or grid) is designed to study marine and terrestrial food webs consisting principally of diatom primary producers, the dominant herbivore Antarctic krill, and the apex predator Adelie penguin. An attenuated microbial food web is also a focus. PAL studies these ecosystems annually over a regional scale grid of oceanographic stations and seasonally at Palmer Station. \\n\\nPalmer Station is located on Anvers Island west of the Antarctic Peninula. The peninsula runs perpendicular to a strong climatic gradient between the cold, dry continental regime to the south, characteristic of the Antarctic interior, and the warm, moist, maritime regime to the north. North-south shifts in the gradient give rise to large environmental variability to climate change. Sea ice extent and variability affects ecosystem changes at all trophic levels. In addition to the long-term field and research activities, information management, graduate student training, education and outreach are an integral part of the program.";
String contributor_email "oscar@marine.rutgers.edu,mvernet@ucsd.edu,prezelin@lifesci.ucsb.edu";
String contributor_name "Oscar Schofield,Maria Vernet,Barbara Prezelin";
String contributor_role "PrincipalInvestigator,PrincipalInvestigator,PrincipalInvestigator";
String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
String Conventions "CF-1.8, ACDD-1.3, COARDS";
String creator_country "USA";
String creator_email "kerfoot@marine.rutgers.edu";
String creator_institution "Rutgers University";
String creator_name "John Kerfoot";
String creator_sector "academic";
String creator_type "person";
String creator_url "https://rucool.marine.rutgers.edu";
String datazoo_dataset_id "130";
String datazoo_datatable_id "130";
String datazoo_datatable_label "High Performance Liquid Chromatography Pigments (Station)";
String datazoo_datatable_name "HighPerformanceLiquidChromatographyPigments";
String date_created "2021-09-13T22:31:04Z";
String date_issued "2021-09-13T22:31:04Z";
String defaultDataQuery "null";
String doi "https://doi.org/10.6073/pasta/ffeb2f59fe11d8a0dabbb992e6b614e2";
Float64 Easternmost_Easting -32.7655;
String featureType "TimeSeries";
String geospatial_bounds_crs "EPSG:4326";
String geospatial_bounds_vertical_crs "EPSG:5831";
Float64 geospatial_lat_max -64.0;
Float64 geospatial_lat_min -65.0375;
String geospatial_lat_resolution "0.00001 degree";
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -32.7655;
Float64 geospatial_lon_min -65.03016667;
String geospatial_lon_resolution "0.00001 degree";
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 230.0;
Float64 geospatial_vertical_min 0.0;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"/Users/kerfoot/data/lter/data/tsv/dat_130/dat_130_PAL9900.tsv
2025-05-04T13:53:31Z (local files)
2025-05-04T13:53:31Z http://pallter-data.marine.rutgers.edu/erddap/tabledap/StationHighPerformanceLiquidChromotographyPigments.html";
String infoUrl "https://pal.lternet.edu/";
String institution "National Science Foundation";
String keywords "chlorophyll, habitats, marine, measurements, nutrients, Population Studies, Primary Production, primary production";
String keywords_vocabulary "LTER Core Areas,LTER Controlled Vocabulary";
String license "All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/). In accordance with scientific publishing conventions and professional etiquette, the consumer of these data (the \"Data User\") is expected to appropriately cite these data in any publication that results from their use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur and should realize that misinterpretation of data may occur if used out of context of the original study. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the data authors. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available \"as is.\" The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.";
String license_link "https://lternet.edu/data-access-policy/";
String methods "General Methods: Samples taken from Go-Flo bottles and analyzed with HPLC for photosynthetic pigments. Samples were filtered onto GF/F filters and frozen at -60 degrees Celsius for a minimum of 24 hours. Pigments were then extracted in 90% acetone for 24 hours at -60 degrees Celsius. Samples were then injected onto a Waters C18 300mm column and separated by HPLC using a method adapted from Wright and Jeffrey, 1991. Peaks were identified by diode array spectrum analysis and integrated using Hitachi's D-6500 system; concentrations were calculated based on external standard curves in Microsoft Excel.\\n\\n0607 Season: Samples were filtered onto GF/F filters and frozen in liquid nitrogen for a minimum of 24 hours. Filters were extracted in 90% acetone for 24 hours at -60 degrees Celsius. Samples were then injected onto a C8 150mm column and separated by HPLC using a method adapted from Zapata et al, 2000. Peaks were identified by diode array spectrum analysis and by retention times of standards obtained from DHI Water & Environment and integrated using Hewlett Packard's 1100 Series system; concentrations were calculated based on external standard curves in Microsoft Excel.\\n\\n0708 Season: No season sampling conducted\\n\\n0809 Season: Samples were collected at various depths using GoFlow bottles. Filtration was done under low light using GFF filters. Filters were immediately stored in liquid nitrogen for no more than 3 months. Pigment extraction and HPLC methods employed followed Wright et al. 1991.";
String naming_authority "edu.rutgers.rucool";
Float64 Northernmost_Northing -64.0;
String product_version "1.0";
String program "LTER";
String project "Palmer LTER";
String publisher_country "USA";
String publisher_email "kerfoot@marine.rutgers.edu";
String publisher_institution "Rutgers University";
String publisher_name "John Kerfoot";
String publisher_type "person";
String publisher_url "https://rucool.marine.rutgers.edu";
String references "https://pal.lternet.edu/";
String sea_name "Southern Ocean";
String source "/Users/kerfoot/data/lter/data/tsv/dat_130/dat_130_PAL9798.tsv";
String sourceUrl "(local files)";
Float64 Southernmost_Northing -65.0375;
String standard_name_vocabulary "CF Standard Name Table v77";
String subsetVariables "study_name,station";
String summary "Phytoplankton pigment sampling was led by Prezelin from the 1991-1992 season through the 1993-1994 season, and then by Vernet from the 1994-1995 season through the 2006-2007 season. Schofield is the third, and current lead, beginning in the 2008-2009 season. Methods have been kept consistent as much as possible over the full time series and different Principal Investigators. Phytoplankton have a suite of accessory pigments in addition to Chlorophyll a, including other Chlorophyll's (e.g. Chlorophyll b), Xanthophylls, and Carotenes. These accessory pigments can be used as chemotaxonomic markers to assess the composition and distribution of the phytoplankton community. For example, Fucoxanthin is a marker pigment of Diatoms, whereas Alloxanthin is a marker pigment of Cryptophytes. Accessory pigments also assist in photoacclimation and photoprotective processes. Water samples are collected throughout the water column at stations within the Palmer LTER region (primarily B and E, to 50m and 65m respectively). Water samples are filtered onto GF/F filters, and filters kept frozen at -80C until analysis. HPLC analysis is completed following Wright et al (1991). Following the guidelines set by NASA SeaHARRE, we use an internal standard and replicate injects on the HPLC to track recovery and replicability of the pigment extraction methods. Data is unavailable for the Palmer 2009-2010 season due to instrumentation problems and for the Palmer 2011-2012 season due to a freezer failure which resulted in the loss of samples. \\n";
String time_coverage_end "2015-03-18T00:00:00Z";
String time_coverage_start "1991-11-27T12:44:00Z";
String title "Photosynthetic pigments of water column samples analyzed using High Performance Liquid Chromatography (HPLC), sampled during the Palmer LTER field seasons at Palmer Station, Antarctica, 1991 - 2015.";
Float64 Westernmost_Easting -65.03016667;
}
}
Data Access Protocol (DAP) and its
selection constraints.
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names,
followed by a collection of
constraints (e.g., variable<value),
each preceded by '&' (which is interpreted as "AND").
For details, see the tabledap Documentation.