BCO-DMO ERDDAP
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String Laboratory analysis\n \nNH4+ and NO3- concentrations were measured at the University of Washington\nMarine Chemistry Lab (methods from UNESCO 1994). Concentration values from\n2011 were corrected for rain dilution using the change in salinity measured\nover the incubation period assuming no addition of NH4+ or NO3- to the pools\nfrom the rainfall.\\u00a0\n \nNH4+ isotopic composition was measured according to a modified version of\nZhang et al. (2007) after isotope dilution to less than 500\\u2030 to prevent\nisotopic contamination of the natural abundance-level mass spectrometer\nsystem. Briefly, NH4+ is oxidized to nitrite using hypobromite then reduced to\nN2O using acetic acid buffered sodium azide before analysis on an isotope\nratio mass spectrometer (IRMS). In modification of the prior method, pre-\nexisting NO2- was removed prior to hypobromite addition by reaction with\nsulfamic acid. To a 20 mL sample volume, 340 \\u00b5L 20 mmol L-1 sulfamic acid\nand 10 \\u00b5L 10% HCl was added and allowed to react for 12 hours at room\ntemperature. A second improvement was the addition of 6 mol L-1 HCl to reduce\nthe pH of the sample below 7 prior to the addition of an azide-100% acetic\nacid reagent. Isotope determinations were made at U. Massachusetts Dartmouth\nusing a GV IsoPrime IRMS, a custom purge-trap sample preparation system, and a\nCTC PAL autosampler. Reproducibility was better than \\u00b1 0.5\\u2030. \\u00a0\n \nFilters and algal samples were dried at 60\\u00b0C for 48 h and elemental and\nisotopic analyses were made at the University of Chicago and at Yale\nUniversity. Samples were run using a Costech 4010 Elemental Analyzer\ncombustion system coupled to a Thermo DeltaV Plus IRMS via a Thermo Conflo IV\ninterface (University of Chicago), or using the same Elemental Analyzer\ncoupled to a Thermo DeltaXP Advantage IRMS via a Thermo Conflo III interface\n(Yale University). \\u00a0Reproducibility was better than \\u00b1 0.1\\u2030.\n\\u00a0
attribute NC_GLOBAL awards_0_award_nid String 474676
attribute NC_GLOBAL awards_0_award_number String OCE-0928232
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0928232 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL awards_1_award_nid String 474685
attribute NC_GLOBAL awards_1_award_number String OCE-0928015
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0928015 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String David L. Garrison
attribute NC_GLOBAL awards_1_program_manager_nid String 50534
attribute NC_GLOBAL awards_2_award_nid String 474686
attribute NC_GLOBAL awards_2_award_number String OCE-0928152
attribute NC_GLOBAL awards_2_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=0928152 (external link)
attribute NC_GLOBAL awards_2_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_2_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_2_funding_source_nid String 355
attribute NC_GLOBAL awards_2_program_manager String David L. Garrison
attribute NC_GLOBAL awards_2_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String tracer filter data \n  \n   S. Pather (UMass-SMAST) \n  \n  version: 2014-11-04   [added site column] \n   replaces version: 24 January 2014
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3  19 Dec 2019
attribute NC_GLOBAL date_created String 2014-01-30T21:07:05Z
attribute NC_GLOBAL date_modified String 2016-08-20T03:10:46Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/6420
attribute NC_GLOBAL Easternmost_Easting double -124.57
attribute NC_GLOBAL geospatial_lat_max double 48.37
attribute NC_GLOBAL geospatial_lat_min double 48.37
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -124.57
attribute NC_GLOBAL geospatial_lon_min double -124.57
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/489283 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String IR Mass Spec
attribute NC_GLOBAL instruments_0_dataset_instrument_description String GV IsoPrime IRMS: Isotope determinations were made at U. Massachusetts Dartmouth using a GV IsoPrime IRMS, a custom purge-trap sample preparation system, and a CTC PAL autosampler. Reproducibility was better than ± 0.5‰.
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 489290
attribute NC_GLOBAL instruments_0_description String The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB16/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Isotope-ratio Mass Spectrometer
attribute NC_GLOBAL instruments_0_instrument_nid String 469
attribute NC_GLOBAL instruments_0_supplied_name String IR Mass Spec
attribute NC_GLOBAL instruments_1_acronym String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_1_dataset_instrument_description String The nutrient autoanalyzer at UWashington was used to determine the nutrient concentrations in the water. Analyses and calibration follow the protocols of the WOCE Hydrographic Program using a Technicon AAII system.\nFor more information, see http://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 489291
attribute NC_GLOBAL instruments_1_description String Nutrient Autoanalyzer is a generic term used when specific type, make and model were not specified.  In general, a Nutrient Autoanalyzer is an automated flow-thru system for doing nutrient analysis (nitrate, ammonium, orthophosphate, and silicate) on seawater samples.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/LAB04/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_1_instrument_nid String 558
attribute NC_GLOBAL instruments_1_supplied_name String Nutrient Autoanalyzer
attribute NC_GLOBAL instruments_2_acronym String CHN_EA
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Samples were run using a Costech 4010 Elemental Analyzer combustion system coupled to a Thermo DeltaV Plus IRMS via a Thermo Conflo IV interface (University of Chicago), or using the same Elemental Analyzer coupled to a Thermo DeltaXP Advantage IRMS via a Thermo Conflo III interface (Yale University). Reproducibility was better than ± 0.1‰.\nThese instruments were used to look at the mass composition and isotopic signatures of the algal and filter material.
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 489487
attribute NC_GLOBAL instruments_2_description String A CHN Elemental Analyzer is used for the determination of carbon, hydrogen, and  nitrogen content in organic and other types of materials, including  solids, liquids, volatile, and viscous samples.
attribute NC_GLOBAL instruments_2_instrument_name String CHN Elemental Analyzer
attribute NC_GLOBAL instruments_2_instrument_nid String 625
attribute NC_GLOBAL instruments_2_supplied_name String CHN_EA
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, C_pcent, chemical, d15, d15N, data, dataset, date, day, day_night, dmo, elapsed, erddap, filt, latitude, longitude, management, N_pcent, night, oceanography, office, pcent, preliminary, sample, site, station, time, time_elapsed, treatment, vol, vol_filt
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/489283/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/489283 (external link)
attribute NC_GLOBAL Northernmost_Northing double 48.37
attribute NC_GLOBAL param_mapping String {'489283': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/489283/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Massachusetts Dartmouth
attribute NC_GLOBAL people_0_affiliation_acronym String UMASSD-SMAST
attribute NC_GLOBAL people_0_person_name String Ms Santhiska Pather
attribute NC_GLOBAL people_0_person_nid String 488866
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String University of Massachusetts Dartmouth
attribute NC_GLOBAL people_1_affiliation_acronym String UMASSD-SMAST
attribute NC_GLOBAL people_1_person_name String Mark A. Altabet
attribute NC_GLOBAL people_1_person_nid String 50571
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String University of Chicago
attribute NC_GLOBAL people_2_person_name String Dr Catherine Pfister
attribute NC_GLOBAL people_2_person_nid String 474679
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Yale University
attribute NC_GLOBAL people_3_person_name String Dr David Post
attribute NC_GLOBAL people_3_person_nid String 474683
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String University of Massachusetts Dartmouth
attribute NC_GLOBAL people_4_affiliation_acronym String UMASSD-SMAST
attribute NC_GLOBAL people_4_person_name String Ms Santhiska Pather
attribute NC_GLOBAL people_4_person_nid String 488866
attribute NC_GLOBAL people_4_role String Student
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL people_5_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_5_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_5_person_name String Nancy Copley
attribute NC_GLOBAL people_5_person_nid String 50396
attribute NC_GLOBAL people_5_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_5_role_type String related
attribute NC_GLOBAL project String Regenerated Nitrogen
attribute NC_GLOBAL projects_0_acronym String Regenerated Nitrogen
attribute NC_GLOBAL projects_0_description String We described patterns of nitrogen isotopes that change over spatial gradients of animal abundance, with isotopic enrichment patterns consistent with a role for animal excretion (Pfister et al, ms). We have quantified the microbes associated with intertidal mussels with metagenomics (Pfister et al. 2010 and 16S rRNA sequencing of the v4 region (Pfister et al, submitted). We used a novel experimental approach in which stable isotope tracers were added to exposed tidepools utilizing them as temporary mesocosms to quantify N transformation rates (Pather et al.,L&O). Large tracer signals were observed over the typical 4-5 hr experimental period in both the dilution of the isotope label in its added form (NH4+ or NO3-) and the appearance of the label in products (e.g. NO2-) The primary advantage was that all members of community participated in the experiment allowing us to recognize the complexity of nitrogen cycling in this system. This funding also supported long-term global change research on Tatoosh Island (Wootton & Pfister 2012 ).   \nProject Summary From Original Proposal\nA fundamental and persistent question in a multitude of ecosystems is the extent to which new versus regenerated nutrients support ecosystem productivity. In coastal marine systems, nitrate derived from upwelling (=new nitrogen) and ammonium regeneration in coastal waters and sediments (=regenerated nitrogen) are major nitrogen sources that fuel coastal ocean productivity. Because inorganic nitrogen availability clearly regulates production in a large number of areas, understanding nitrogen supply is essential. In open coast regions away from river mouths, nitrate inputs are determined by large-scale physical processes promoting upwelling of deep, nutrient-rich water including wind direction and intensity. In contrast, regenerated nitrogen (mainly ammonium) is generally the result of local animal and microbial processes. Along marine rocky shores, where upwelling is typically used as a proxy for productivity, we know very little about the dynamics of regenerated nutrients and their potential contribution to productivity at larger scales; only upwelling is typically used as a proxy for productivity. Associations of the abundant California mussel, Mytilus californianus, with water nutrients, algal productivity, stable isotope signatures, and microbial genetics indicate potentially strong regeneration of nitrogen by these animals and suggests an important secondary role of nitrifying microbes affiliated with these animals.\nWe propose collaborative work to quantify the relative contribution of regenerated nitrogen on rocky shores through censuses and experiments across a gradient of mussel abundance. We will use stable nitrogen and oxygen isotopes of ammonium, nitrite, and nitrate to disentangle the contribution of different biological processes versus upwelling to the nitrogen supply and uptake of rocky shore regions. This includes both natural abundance and tracer addition studies.\n \nRelevant References:\n2010. Pfister, C. A., F. Meyer, D. A. Antonopoulos. Metagenomic profiling of a microbial assemblage associated with the California mussel, Mytilus californianus: a node in networks of carbon and nitrogen cycling. PLoS ONE 5(5): e10518. doi:10.1371/ journal.pone.0010518. Metagenome data associated with this paper are uploaded to MGRAST server at http://metagenomics.anl.gov/\n2012. Wootton, J. T. & C. A. Pfister. Carbon system measurements and potential climatic drivers at a site of rapidly declining ocean pH. PLoS ONE 7(12): e53396. doi:10.1371/ journal.pone.0053396. Data associated with this paper are uploaded to the World Ocean DataBase, https://www.nodc.noaa.gov\nin press. Pather, S., C. A. Pfister, M. Altabet, D. M. Post. Ammonium cycling in the rocky intertidal: remineralization, removal and retention. Limnology and Oceanography\nin review (1/2014). Pfister, C. A., M. Altabet, D. Post. Animal Regeneration and microbial retention of nitrogen along coastal rocky shores.
attribute NC_GLOBAL projects_0_end_date String 2013-08
attribute NC_GLOBAL projects_0_geolocation String coastal northeast Pacific Ocean
attribute NC_GLOBAL projects_0_name String The Role of Regenerated Nitrogen for Rocky Shore Productivity
attribute NC_GLOBAL projects_0_project_nid String 474677
attribute NC_GLOBAL projects_0_project_website String http://pfisterlab.uchicago.edu (external link)
attribute NC_GLOBAL projects_0_start_date String 2009-09
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 48.37
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String site,latitude,longitude
attribute NC_GLOBAL summary String We evaluated the role of mussels by adding 15N-labeled NH4+ to an assemblage\nof tidepools where they were either present at natural abundance levels, or\nabsent through manual removal. \\u00a0The role of phototrophs was separately\nexamined by conducting these experiments both during the day and at night.\n\\u00a0The tidal height of pools varied between 1.2 to 1.5 m above Mean Lower\nLow Water (MLLW). Tidepools were thus isolated from each other as well as the\nnearshore environment during the low tide period when experiments were\nconducted. Each experiment included 4 to 5 mussel removal (MR) tidepools\n(since 2002) and 4 to 5 mussel control (MC) tidepools with natural mussel\ndensities. \\u00a0In June 2010, we performed daytime NH4+ tracer experiments\nand in August 2010 nighttime experiments using the same tidepools. The\nfollowing year (July 2011) these experiments were repeated with the addition\nof bottle incubations (see below) to evaluate the effects of suspended\ntidepool components and extended sampling for 6 days after the initial 15N\naddition to test for long-term retention of NH4+. \\u00a0During the 2011\nexperiments, unforeseen rain reduced the salinity in some pools by up to 51%,\nand we have attempted to correct for the expected dilution of NH4+ in our\ntidepool rate calculations.\n \nBecause isotope enrichment levels were relatively low, we used the\nconventional delta notation instead of atom% to describe variations in 15N\nenrichment (where delta-15NH4+ = {(15N:14N sample \\u00f7 15N:14N standard)\n-1}\\u00d71000\\u2030, where the standard is atmospheric N2. \\u00a0Tracer\nlabeled ammonium chloride (15NH4Cl) was added to the pools to approximate a\n1000\\u2030 enrichment in 2010 (doubling the 15N-NH4+ concentration) and a\n2000\\u2030 enrichment in 2011(tripling the 15N-NH4+ concentration). 15N\nnatural abundance is only 0.365% and these tracer additions thus had a\nnegligible effect on the overall NH4+ concentrations increasing them by only\n~0.4% and ~0.8%, respectively. Tidepool volumes were estimated\nspectrophotometrically using varying concentrations of food dye (Pfister\n1995). Together with estimates of NH4+ concentration (from 2009 data), we\nestimated the tracer addition required to achieve the targeted 15N\nenrichments. However, the actual initial enrichments varied substantially,\n684.4 - 2406.4\\u2030 in 2010 and 781.4 - 3880.2\\u2030 in 2011, likely due to\nerror in tidepool volume estimation and natural variations in initial NH4+\nconcentrations. Fortunately, we sampled immediately following each tracer\naddition allowing for the determination of the true initial 15N enrichment.\n\\u00a0\n \nPrior to tracer addition at ebb tide, 100 mL of tidepool water was syringe-\nfiltered (Whatman GF/F) into separate HDPE bottles for natural abundance\n15NH4+ and concentration determination. \\u00a0To each pool, tracer 15NH4+ was\nthen added and distributed by stirring with a stick. Water samples were\nimmediately collected for measuring initial 15N enrichment and subsequently at\n2, 4, and 6 hour intervals to determine isotope and concentration time\ncourses. All water samples were frozen until analysis. Tidepool oxygen, pH,\nand temperature (Hach HQ4D) were also collected at ~ 2 h intervals throughout\nthe experiment.\n \nIn 2011 we also assessed the contribution of the suspended microbial community\nto NH4+ cycling by enclosing tidepool water in a 250 mL transparent\npolycarbonate incubation bottle. Following tracer addition, the bottle was\nfilled, then left to float in the tidepool for the duration of the experiment.\nSamples from bottles were filtered as described both immediately after\ncontainment and at the end of the experiment (~6 h later).\n \nWe assessed macroalgal contribution to NH4+ removal by transplanting two\ntidepool-dwelling algae species. \\u00a0Prionitis sternbergii were sampled 2\nweeks prior to the experiment for baseline natural abundance 15N values and\ntransplanted into the pools with Z-Spar Epoxy (Pfister 2007). On the day of\nthe experiment, the red-alga, Corallina vancouveriensis from a single source\npatch, was also sampled for 15N natural abundance, inserted into pieces of\nStyrofoam, and floated in each pool.\n \nAt the end of each experiment (~6 h sampling point), we sampled tidepool\nparticulate organic material (POM) by filtering through combusted GF/F filters\nuntil they clogged (~ 600 mL), comparing these samples with POM similarly\nsampled from the immediate nearshore. \\u00a0Floating Corallina spp. samples\nwere collected into clean Eppendorf tubes, and similar sized pieces of\nPrionitis spp. were collected from each pool into clean foil packets.\\u00a0  \n We evaluated the extent of longer-term 15N tracer retention in 2011 by\nsampling tidepool water, POM and transplanted Prionitis 1, 3, and 6 days\nfollowing tracer addition. We sampled at ebb tide and at again at slack water\njust prior to high tide on the first day after tracer addition (that is, 24 h\nlater) and at slack water prior to high tide on Day 3 and 6.\\u00a0\n \nRelevant References:\n \n2014\\. Pather, S., C. A. Pfister, M. Altabet, D. M. Post. Ammonium cycling in\nthe rocky intertidal: remineralization, removal and retention. Limnology and\nOceanography\n59:361-372.\\u00a0[http://aslo.org/lo/toc/vol_59/issue_2/0361.htm](\\\\http://aslo.org/lo/toc/vol_59/issue_2/0361.html\\\\)\n \nDOI for this dataset:\\u00a0The role of regenerated nitrogen for rocky shore\nproductivity, Cape Flattery, Washington, 2010 &\n2011.\\u00a0Handle:\\u00a0[http://hdl.handle.net/1912/6420](\\\\http://hdl.handle.net/1912/6420\\\\).\\u00a0DOI:10.1575/1912/6420\n \nRelated Datasets:  \n[ammonium removal by seaweeds](\\\\https://www.bco-dmo.org/dataset/489420\\\\)  \n[natural abundance N and C filter content](\\\\http://www.bco-\ndmo.org/dataset/489310\\\\)  \n[tidepool ammonium and mussels](\\\\https://www.bco-dmo.org/dataset/488860\\\\)  \n[tidepool incubation ammonium](\\\\https://www.bco-dmo.org/dataset/489085\\\\)
attribute NC_GLOBAL title String [filter tracer content] - Content of nitrogen and carbon in tracer filters from Cape Flattery, WA from 2010-2011 (Regenerated Nitrogen project) (The Role of Regenerated Nitrogen for Rocky Shore Productivity)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -124.57
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable site String
attribute site bcodmo_name String site
attribute site description String sampling location
attribute site long_name String Site
attribute site units String unitless
variable latitude double
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 48.37, 48.37
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String latitude; north is positive
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude double
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -124.57, -124.57
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String longitude; east is positive
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable date int
attribute date _FillValue int 2147483647
attribute date actual_range int 20100626, 20110717
attribute date bcodmo_name String date
attribute date description String date samples collected in yyyymmdd format
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date units String unitless
variable day_night String
attribute day_night bcodmo_name String time_of_day
attribute day_night description String part of day for experiment
attribute day_night long_name String Day Night
attribute day_night units String unitless
variable station byte
attribute station _FillValue byte 127
attribute station actual_range byte 8, 40
attribute station bcodmo_name String station
attribute station description String tidepool identification number
attribute station long_name String Station
attribute station units String unitless
variable treatment String
attribute treatment bcodmo_name String treatment
attribute treatment description String mussels removed or present in tidepool
attribute treatment long_name String Treatment
attribute treatment units String unitless
variable sample String
attribute sample bcodmo_name String sample
attribute sample description String sample identification number
attribute sample long_name String Sample
attribute sample nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute sample units String unitless
variable d15N float
attribute d15N _FillValue float NaN
attribute d15N actual_range float 6.04, 166.89
attribute d15N bcodmo_name String unknown
attribute d15N description String nitrogen isotopic composition (delta 15N:N14) of the (mostly organic) material trapped on the filter
attribute d15N long_name String D15 N
attribute d15N units String parts per thousand vs. VSMOW (Vienna Standard Mean Ocean Water)
variable vol_filt float
attribute vol_filt _FillValue float NaN
attribute vol_filt actual_range float 0.36, 1.5
attribute vol_filt bcodmo_name String vol_filt
attribute vol_filt description String volume filtered
attribute vol_filt long_name String Vol Filt
attribute vol_filt units String liters
variable N_pcent float
attribute N_pcent _FillValue float NaN
attribute N_pcent actual_range float 0.41, 9.12
attribute N_pcent bcodmo_name String unknown
attribute N_pcent description String percent nitrogen of filter
attribute N_pcent long_name String N Pcent
attribute N_pcent units String percent
variable C_pcent float
attribute C_pcent _FillValue float NaN
attribute C_pcent actual_range float 2.66, 62.84
attribute C_pcent bcodmo_name String unknown
attribute C_pcent description String percent carbon of filter
attribute C_pcent long_name String C Pcent
attribute C_pcent units String percent
variable time_elapsed float
attribute time_elapsed _FillValue float NaN
attribute time_elapsed actual_range float 4.1, 30.07
attribute time_elapsed bcodmo_name String time_elapsed
attribute time_elapsed description String time after tracer addition
attribute time_elapsed long_name String Time Elapsed
attribute time_elapsed nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ELTMZZZZ/ (external link)
attribute time_elapsed units String hours

 
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