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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 Other
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 hducklow at ldeo.columbia.edu
attribute NC_GLOBAL contributor_name String Hugh Ducklow
attribute NC_GLOBAL contributor_role String 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 69
attribute NC_GLOBAL datazoo_datatable_id String 69
attribute NC_GLOBAL datazoo_datatable_label String Dissolved Organic Carbon (Cruise)
attribute NC_GLOBAL datazoo_datatable_name String DissolvedOrganicCarbon
attribute NC_GLOBAL date_created String 2021-05-07T22:14:30Z
attribute NC_GLOBAL date_issued String 2021-05-07T22:14:30Z
attribute NC_GLOBAL defaultDataQuery String null
attribute NC_GLOBAL defaultGraphQuery String time,depth,dissolved_inorganic_carbon1&.draw=markers&.marker=4%7C5&.color=0x000000&.colorBar=%7C%7C%7C0%7C3000%7C&.bgColor=0xffccccff&.yRange=%7C%7Cfalse%7C
attribute NC_GLOBAL doi String https://doi.org/10.6073/pasta/891bb60f7c6d74e3491ebbc6a57bf4c6 (external link)
attribute NC_GLOBAL geospatial_bounds_crs String EPSG:4326
attribute NC_GLOBAL geospatial_bounds_vertical_crs String EPSG:5831
attribute NC_GLOBAL geospatial_lat_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lat_units String degree_north
attribute NC_GLOBAL geospatial_lon_resolution String 0.00001 degree
attribute NC_GLOBAL geospatial_lon_units String degree_east
attribute NC_GLOBAL geospatial_vertical_max double 3700.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL history String local files
attribute NC_GLOBAL infoUrl String https://pal.lternet.edu/ (external link)
attribute NC_GLOBAL institution String National Science Foundation
attribute NC_GLOBAL keywords String carbon, habitats, marine, measurements, Organic Matter, organic matter
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 General Methods: Samples for determination of DOC concentration are harvested from the CTD rosette by gentle in-line gravity filtration through precombusted GFF filters and frozen at -20C until analysis in the home laboratory. Samples are analyzed using a Shimadzu TOC-V Total Organic Carbon Analyzer following standard JGOFS Protocols. \\n\\n<em>References</em>\\nDucklow HW, Dickson ML, Kirchman DL, Steward G, Orchardo J, Marra J, Azam F (2000) Constraining bacterial production, conversion efficiency and respiration in the Ross Sea, Antarctica, January-February, 1997. Deep-Sea Research II 47:3227-3247\\n\\nGasol JM, del Giorgio PA (2000) Using flow cytrometry for counting natural planktonic bacteria and understanding the structure of planktonic bacterial communities. Scientia Marina 64:197-224.\\n\\nKnap A, Michaels AF, Close A, Ducklow HW, Dickson A (1994) Protocols for the Joint Global Ocean Flux Study (JGOFS) Core Measurements. Report No. 29, UNESCO, Paris \\n \\nSmith DC, Azam F (1992) A simple, economical method for measuring bacterial protein synthesis rates in seawater using 3H-leucine. Marine Microbial Foodwebs 6:107-114.\\n
attribute NC_GLOBAL naming_authority String edu.rutgers.rucool
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 local files
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v77
attribute NC_GLOBAL subsetVariables String study_name,grid_line,grid_station,station
attribute NC_GLOBAL summary String Dissolved organic carbon (Department of Commerce (DOC)) is a poorly-characterized but large and dynamic pool of actively-cycling carbon in the oceans, and one of the largest organic carbon pools on the planet. The total DOC pool consists of three major fractions: refractory DOC resistant to microbial oxidation with a turnover time of millennia; semi-labile DOC, produced and decomposed on seasonal timescales, and labile DOC, consisting of simple, recently-produced compounds with nanomolar concentrations, and turnover times of minutes-days. The background concentration of refractory DOC in the deep ocean is 35-45 micromolar. DOC concentration in the upper 100-200 meters is enhanced by 10-50 micromolar with the addition of semilabile DOC. In subtropical and temperate oceans, semilabile DOC can form an important part of the carbon export by deep vertical mixing into the oceanic mid-depths. Concentrations of semilabile DOC are lower in the polar Southern Ocean than in most other regions.
attribute NC_GLOBAL time_coverage_end String 2012-01-25T00:00:00Z
attribute NC_GLOBAL time_coverage_start String 2003-01-06T00:53:00Z
attribute NC_GLOBAL title String Dissolved organic carbon (DOC) taken from discrete water column samples collected during annual cruise along western Antarctic Peninsula, 2003-2012.
variable study_name String
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 1.04181438E9, 1.3274496E9
attribute time axis String T
attribute time calendar String proleptic_gregorian
attribute time column_name String col_883
attribute time comment String date and time
attribute time ioos_category String Time
attribute time long_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 grid_line long
attribute grid_line _FillValue long 9223372036854775807
attribute grid_line actual_range long -158, 624
attribute grid_line column_name String col_884
attribute grid_line comment String line on a pre-defined survey grid in the LTER Palmer study area
attribute grid_line ioos_category String Unknown
attribute grid_line long_name String Grid Line Intended
attribute grid_line lter_mscale String nominal
variable grid_station long
attribute grid_station _FillValue long 9223372036854775807
attribute grid_station actual_range long -80, 260
attribute grid_station column_name String col_885
attribute grid_station comment String Palmer LTER grid station
attribute grid_station ioos_category String Unknown
attribute grid_station long_name String Grid Station Intended
attribute grid_station lter_mscale String nominal
variable station String
attribute station column_name String col_886
attribute station comment String Palmer LTER grid station
attribute station ioos_category String Identifier
attribute station long_name String Station Name
attribute station lter_mscale String nominal
variable bottle byte
attribute bottle _FillValue byte 127
attribute bottle actual_range byte 1, 23
attribute bottle colorBarMaximum double 100.0
attribute bottle colorBarMinimum double 0.0
attribute bottle column_name String col_887
attribute bottle comment String reference number of sample bottle from rosette. FillValue denotes underway/intake.
attribute bottle ioos_category String Statistics
attribute bottle long_name String Bottle Number
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 depth double
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double 9.969209968386869E36
attribute depth actual_range double 0.0, 3700.0
attribute depth axis String Z
attribute depth colorBarMaximum double 4000.0
attribute depth colorBarMinimum double 0.0
attribute depth colorBarPalette String TopographyDepth
attribute depth column_name String col_888
attribute depth comment String measurement or sample collection distance from water column surface
attribute depth ioos_category String Location
attribute depth long_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 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 dissolved_organic_carbon double
attribute dissolved_organic_carbon _FillValue double 9.969209968386869E36
attribute dissolved_organic_carbon actual_range double -4.1, 441.16
attribute dissolved_organic_carbon colorBarMaximum double 450.0
attribute dissolved_organic_carbon colorBarMinimum double 0.0
attribute dissolved_organic_carbon column_name String col_889
attribute dissolved_organic_carbon comment String a non-metallic element in the Periodic Table with Atomic Number 6, Atomic Weight 12.0107
attribute dissolved_organic_carbon ioos_category String Ocean Color
attribute dissolved_organic_carbon long_name String DOC
attribute dissolved_organic_carbon lter_mscale String ratio
attribute dissolved_organic_carbon lter_num_type String real
attribute dissolved_organic_carbon lter_units String µmol/L
attribute dissolved_organic_carbon lter_units_string String micromolePerLiter
attribute dissolved_organic_carbon standard_name String mole_concentration_of_dissolved_organic_carbon_in_sea_water
attribute dissolved_organic_carbon units String micromoles L-1
attribute dissolved_organic_carbon units_conventions String HFR-LTER,PAL-LTER,PIE-LTER
variable event short
attribute event _FillValue short 32767
attribute event actual_range short 6, 787
attribute event colorBarMaximum double 100.0
attribute event colorBarMinimum double 0.0
attribute event column_name String col_2262
attribute event comment String sequence of cruise happenings ordered by time
attribute event ioos_category String Statistics
attribute event long_name String Event Number
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 notes double
attribute notes _FillValue double NaN
attribute notes column_name String col_4049
attribute notes comment String text field to describe a log entry (ex. event log)
attribute notes ioos_category String Unknown
attribute notes long_name String Notes
attribute notes lter_mscale String nominal
attribute notes missing_value double NaN

 
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