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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.6
attribute NC_GLOBAL acknowledgement String Funding and support provided by the National Science Foundation
attribute NC_GLOBAL cdm_data_type String Trajectory
attribute NC_GLOBAL cdm_trajectory_variables String study_name
attribute NC_GLOBAL comment String 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.
attribute NC_GLOBAL contributor_email String oscar@marine.rutgers.edu,mvernet@ucsd.edu
attribute NC_GLOBAL contributor_name String Oscar Schofield,Maria Vernet
attribute NC_GLOBAL contributor_role String PrincipalInvestigator,PrincipalInvestigator
attribute NC_GLOBAL contributor_role_vocabulary String https://vocab.nerc.ac.uk/collection/G04/current/ (external link)
attribute NC_GLOBAL Conventions String CF-1.8, ACDD-1.3, COARDS
attribute NC_GLOBAL creator_country String USA
attribute NC_GLOBAL creator_email String kerfoot at marine.rutgers.edu
attribute NC_GLOBAL creator_institution String Rutgers University
attribute NC_GLOBAL creator_name String John Kerfoot
attribute NC_GLOBAL creator_sector String academic
attribute NC_GLOBAL creator_type String person
attribute NC_GLOBAL creator_url String https://rucool.marine.rutgers.edu (external link)
attribute NC_GLOBAL datazoo_dataset_id String 41
attribute NC_GLOBAL datazoo_datatable_id String 41
attribute NC_GLOBAL datazoo_datatable_label String Primary Production (Cruise)
attribute NC_GLOBAL datazoo_datatable_name String PrimaryProduction
attribute NC_GLOBAL date_created String 2021-08-27T21:10:35Z
attribute NC_GLOBAL date_issued String 2021-08-27T21:10:35Z
attribute NC_GLOBAL defaultDataQuery String null
attribute NC_GLOBAL doi String https://doi.org/10.6073/pasta/a1aed6631a1e1c2b4a09aad0b352c526 (external link)
attribute NC_GLOBAL Easternmost_Easting double -44.32278
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL geospatial_bounds_crs String EPSG:4326
attribute NC_GLOBAL geospatial_bounds_vertical_crs String EPSG:5831
attribute NC_GLOBAL geospatial_lat_max double -63.4752333333333
attribute NC_GLOBAL geospatial_lat_min double -70.0883
attribute NC_GLOBAL geospatial_lat_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -44.32278
attribute NC_GLOBAL geospatial_lon_min double -78.90083
attribute NC_GLOBAL geospatial_lon_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 181.3
attribute NC_GLOBAL geospatial_vertical_min double -1.4
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL history String /Users/kerfoot/data/lter/data/tsv/dat_41/dat_41_PD97-01.tsv
attribute NC_GLOBAL infoUrl String https://pal.lternet.edu/ (external link)
attribute NC_GLOBAL institution String National Science Foundation
attribute NC_GLOBAL keywords String biogeochemistry, carbon, communities, ecology, ecosystems, food webs, habitats, ice, marine, measurements, phytoplankton, Primary Production, primary production, productivity, Signature, trophic dynamics
attribute NC_GLOBAL keywords_vocabulary String LTER Core Areas,LTER Controlled Vocabulary
attribute NC_GLOBAL license String All data contained herein is licensed under the LTER Network Data Access Policy (https://lternet.edu/data-access-policy/) (external link). 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.
attribute NC_GLOBAL license_link String https://lternet.edu/data-access-policy/ (external link)
attribute NC_GLOBAL methods String Frequency: Samples were taken at every station on the cruises.
attribute NC_GLOBAL naming_authority String edu.rutgers.rucool
attribute NC_GLOBAL Northernmost_Northing double -63.4752333333333
attribute NC_GLOBAL product_version String 1.0
attribute NC_GLOBAL program String LTER
attribute NC_GLOBAL project String Palmer LTER
attribute NC_GLOBAL publisher_country String USA
attribute NC_GLOBAL publisher_email String kerfoot at marine.rutgers.edu
attribute NC_GLOBAL publisher_institution String Rutgers University
attribute NC_GLOBAL publisher_name String John Kerfoot
attribute NC_GLOBAL publisher_type String person
attribute NC_GLOBAL publisher_url String https://rucool.marine.rutgers.edu (external link)
attribute NC_GLOBAL references String https://pal.lternet.edu/ (external link)
attribute NC_GLOBAL sea_name String Southern Ocean
attribute NC_GLOBAL source String /Users/kerfoot/data/lter/data/tsv/dat_41/dat_41_LMG08-01.tsv
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -70.0883
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v77
attribute NC_GLOBAL subsetVariables String study_name, cast_number, bottle
attribute NC_GLOBAL summary String Primary Production experiments were led by Vernet from 1995-2008. Schofield is the current lead, beginning in 2009. Methods have been kept consistent as much as possible over the full time series and different Principal Investigators. Primary production is the uptake of inorganic carbon and assimilation of it into organic matter by phytoplankton. Primary production rates, expressed as mgC per m3 per day were measured by the uptake of radioactive (14C) sodium bicarbonate. Water samples are collected throughout the water column along the Western Antarctic Peninsula at regular LTER grid stations where Conductivity, Temperature, Depth (CTD) casts are performed. Water is put into borosilicate bottles, inoculated with 1 uCi of NaH14CO3 per bottle, and incubated in an outdoor deck incubator. The incubator is plumbed to the ship sea water system to maintain ambient seawater temperature and bottles are screened to in situ light levels. The uptake of 14C-bicarbonate by the phytoplankton was measured in a scintillation counter after a 24-hour incubation period..Primary Production experiments were led by Vernet from 1995-2008. Schofield is the current lead, beginning in 2009. Methods have been kept consistent as much as possible over the full time series and different Principal Investigators. Primary production is the uptake of inorganic carbon and assimilation of it into organic matter by phytoplankton. Primary production rates, expressed as mgC per m3 per day were measured by the uptake of radioactive (14C) sodium bicarbonate. Water samples are collected throughout the water column along the Western Antarctic Peninsula at regular LTER grid stations where CTD casts are performed. Water is put into borosilicate bottles, inoculated with 1 uCi of NaH14CO3 per bottle, and incubated in an outdoor deck incubator. The incubator is plumbed to the ship sea water system to maintain ambient seawater temperature and bottles are screened to in situ light levels. The uptake of 14C-bicarbonate by the phytoplankton was measured in a scintillation counter after a 24-hour incubation period.
attribute NC_GLOBAL time_coverage_end String 2019-02-03T14:02:06Z
attribute NC_GLOBAL time_coverage_start String 1899-12-31T00:00:00Z
attribute NC_GLOBAL title String Water column primary production from inorganic carbon uptake for 24h at simulated in situ (SIS) light levels in deck incubators, collected aboard Palmer LTER annual cruises off the coast of the Western Antarctic Peninsula, 1995 - 2019.
attribute NC_GLOBAL Westernmost_Easting double -78.90083
variable study_name String
attribute study_name cf_role String trajectory_id
attribute study_name column_name String studyName
attribute study_name comment String Cruise name
attribute study_name ioos_category String Identifier
attribute study_name long_name String Study
variable time double
attribute time _CoordinateAxisType String Time
attribute time actual_range double -2.2090752E9, 1.549202526E9
attribute time axis String T
attribute time calendar String proleptic_gregorian
attribute time column_id long 465
attribute time column_name String col_465
attribute time ioos_category String Time
attribute time long_name String Time
attribute time lter_column_description String date and time
attribute time lter_column_name String Datetime GMT
attribute time lter_mscale String dateTime
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double 9.969209968386869E36
attribute latitude actual_range double -70.0883, -63.4752333333333
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude column_id long 469
attribute latitude column_name String col_469
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude lter_column_description String latitude measured from the equator in decimal degrees, South is negative
attribute latitude lter_column_name String Latitude
attribute latitude lter_mscale String ratio
attribute latitude lter_num_type String real
attribute latitude lter_units String º
attribute latitude lter_units_string String degree
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable longitude double
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double 9.969209968386869E36
attribute longitude actual_range double -78.90083, -44.32278
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude column_id long 470
attribute longitude column_name String col_470
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude lter_column_description String longitude measured from the Prime Meridian in decimal degrees, West is negative
attribute longitude lter_column_name String Longitude
attribute longitude lter_mscale String ratio
attribute longitude lter_num_type String real
attribute longitude lter_units String º
attribute longitude lter_units_string String degree
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable depth double
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double 9.969209968386869E36
attribute depth actual_range double -1.4, 181.3
attribute depth axis String Z
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth column_id long 471
attribute depth column_name String col_471
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth lter_column_description String measurement or sample collection distance from water column surface
attribute depth lter_column_name String Depth
attribute depth lter_mscale String ratio
attribute depth lter_num_type String real
attribute depth lter_units String m
attribute depth lter_units_string String meter
attribute depth missing_value double -999.0
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
attribute depth units_conventions String AND-LTER,BNZ-LTER,CDR-LTER,EML-2.0.1,EML-2.1.0,EML-LTER,LUQ-LTER,SGS-LTER
variable event short
attribute event _FillValue short 32767
attribute event actual_range short 6, 1273
attribute event column_id long 462
attribute event column_name String col_462
attribute event ioos_category String Unknown
attribute event long_name String Event
attribute event lter_column_description String sequence of cruise happenings ordered by time
attribute event lter_column_name String Event
attribute event lter_mscale String interval
attribute event lter_num_type String real
attribute event lter_units_string String number
attribute event units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable cast_number short
attribute cast_number _FillValue short 32767
attribute cast_number actual_range short 1, 79
attribute cast_number colorBarMaximum double 100.0
attribute cast_number colorBarMinimum double 0.0
attribute cast_number column_id long 463
attribute cast_number column_name String col_463
attribute cast_number ioos_category String Statistics
attribute cast_number long_name String Cast Number
attribute cast_number lter_column_description String reference number for ship-based over-the-side deployed and lowered instrumentation
attribute cast_number lter_column_name String Cast
attribute cast_number lter_mscale String interval
attribute cast_number lter_num_type String natural
attribute cast_number lter_units_string String number
attribute cast_number units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable bottle byte
attribute bottle _FillValue byte 127
attribute bottle actual_range byte 1, 26
attribute bottle column_id long 464
attribute bottle column_name String col_464
attribute bottle ioos_category String Unknown
attribute bottle long_name String Bottle
attribute bottle lter_column_description String reference number of sample bottle from rosette
attribute bottle lter_column_name String Bottle
attribute bottle lter_mscale String interval
attribute bottle lter_num_type String natural
attribute bottle lter_units_string String number
attribute bottle units_conventions String EML-2.0.1,EML-2.1.0,EML-LTER
variable grid_line double
attribute grid_line _FillValue double 9.969209968386869E36
attribute grid_line actual_range double -158.0, 623.328
attribute grid_line column_id long 467
attribute grid_line column_name String col_467
attribute grid_line ioos_category String Unknown
attribute grid_line long_name String Grid Line
attribute grid_line lter_column_description String line on a pre-defined survey grid in the LTER Palmer study area
attribute grid_line lter_column_name String Line
attribute grid_line lter_mscale String nominal
variable sampling_station double
attribute sampling_station _FillValue double 9.969209968386869E36
attribute sampling_station actual_range double -80.0, 260.329
attribute sampling_station column_id long 468
attribute sampling_station column_name String col_468
attribute sampling_station ioos_category String Unknown
attribute sampling_station long_name String Sampling Station
attribute sampling_station lter_column_description String Palmer LTER sampling grid station
attribute sampling_station lter_column_name String Station
attribute sampling_station lter_mscale String nominal
variable primary_production double
attribute primary_production _FillValue double 9.969209968386869E36
attribute primary_production actual_range double -1.08, 2273.47324976553
attribute primary_production column_id long 472
attribute primary_production column_name String col_472
attribute primary_production ioos_category String Time
attribute primary_production long_name String Primary Production
attribute primary_production lter_column_description String Uptake rate of carbon {primary production}
attribute primary_production lter_column_name String Primary Production
attribute primary_production lter_mscale String ratio
attribute primary_production lter_num_type String real
attribute primary_production lter_units String mg/m³/day
attribute primary_production lter_units_string String milligramPerMeterCubedPerDay
attribute primary_production missing_value double -999.0
attribute primary_production units String mg m-3 day-1
attribute primary_production units_conventions String PAL-LTER
variable primary_production_stdev double
attribute primary_production_stdev _FillValue double NaN
attribute primary_production_stdev actual_range double 0.0, 569.871485862594
attribute primary_production_stdev column_id long 473
attribute primary_production_stdev column_name String col_473
attribute primary_production_stdev ioos_category String Time
attribute primary_production_stdev long_name String Primary Production Stdev
attribute primary_production_stdev lter_column_description String Uptake rate standard deviation of carbon {primary production}
attribute primary_production_stdev lter_column_name String Prim Prod SD
attribute primary_production_stdev lter_mscale String ratio
attribute primary_production_stdev lter_num_type String real
attribute primary_production_stdev lter_units String mg/m³/day
attribute primary_production_stdev lter_units_string String milligramPerMeterCubedPerDay
attribute primary_production_stdev missing_value double -999.0
attribute primary_production_stdev units String mg m-3 day-1
attribute primary_production_stdev units_conventions String PAL-LTER
variable percent_irradiance byte
attribute percent_irradiance _FillValue byte 127
attribute percent_irradiance actual_range byte 0, 100
attribute percent_irradiance colorBarMaximum double 100.0
attribute percent_irradiance colorBarMinimum double 0.0
attribute percent_irradiance column_id long 474
attribute percent_irradiance column_name String col_474
attribute percent_irradiance ioos_category String Unknown
attribute percent_irradiance long_name String Percent Irradiance
attribute percent_irradiance lter_column_description String The ratio of two light measurements incident on horizontal surfaces at two locations.
attribute percent_irradiance lter_column_name String Percent_Irradiance
attribute percent_irradiance lter_mscale String ratio
attribute percent_irradiance lter_num_type String real
attribute percent_irradiance lter_units String %
attribute percent_irradiance lter_units_string String percent
attribute percent_irradiance units String percent
attribute percent_irradiance units_conventions String 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

 
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