Easier access to scientific data
Brought to you by NOAA NMFS SWFSC ERD
|
ERDDAP
Easier access to scientific data |
Brought to you by NOAA NMFS SWFSC ERD |
| griddap | Subset | tabledap | Make A Graph | wms | files | Title | Summary | FGDC | ISO 19115 | Info | Background Info | RSS | Institution | Dataset ID | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/AdeliePenguinAdultandChickCounts.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/AdeliePenguinAdultandChickCounts | https://pallter-data.marine.rutgers.edu/erddap/tabledap/AdeliePenguinAdultandChickCounts.graph | https://pallter-data.marine.rutgers.edu/erddap/files/AdeliePenguinAdultandChickCounts/ | Adelie penguin colony-specific chick production, 1991, present. | Adelie penguin colony-specific chick production, 1991 - present. The fundamental long-term objective of the seabird component of the Palmer LTER (PAL) has been to identify and understand the mechanistic processes that regulate the mean fitness (population growth rate) of regional penguin populations. Two hypotheses have guided this research, with one suggesting that population mean fitness is best explained by changes in regional krill biomass, and the other proposing that long-term changes in sea ice affects mean fitness by tipping the balance in favor of one species over another in accordance with species-specific evolved life history affinities to sea ice. Although these hypotheses are not mutually exclusive, current evidence in the PAL region tends to favor the latter over the former. Since the inception of PAL, Adélie penguin populations have effectively collapsed, while those of gentoo and chinstrap penguins have increased dramatically, trends that are spatially and temporally coherent with decreasing regional sea ice duration. Adélie penguins are an ice-obligate polar species whose life history is intimately linked to the presence of sea ice, while chinstrap and gentoo penguins are ice-intolerant species whose life histories evolved in the sub-Antarctic, where sea ice is a less permanent feature of the marine ecosystem. In contrast, although krill constitute the most important component of the summer diets by mass of these three penguin species, changes in PAL krill abundances have exhibited no long-term trends, and thus fail to explain the divergent patterns in penguin populations evident in our time series. \\n\\nThe PAL study region includes five main islands on which Adélie penguin colonies have historically occurred. These are censused synoptically once a year to determine the total number of chicks produced in the area. The optimal date for this census may vary by a few days each season, but ultimately tries to capture the week following the time when approximately 2/3 of the chicks have crèched. The timing of this census is assisted by the REPRO data, which provide a daily to weekly rate of change in the number of crèched chicks. Because the colonies used in this area-wide census are the same as those used to determine the overall annual breeding population, one of the key metrics obtained is an integrated number of breeding success (chicks crèched/breeding pair). These data have provided valuable insights into the marine and terrestrial factors that influence Adélie penguin mean population fitness. \\n\n\ncdm_data_type = Other\nVARIABLES:\nstudy_name (Study)\n... (6 more variables)\n | https://pallter-data.marine.rutgers.edu/erddap/info/AdeliePenguinAdultandChickCounts/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/AdeliePenguinAdultandChickCounts.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=AdeliePenguinAdultandChickCounts&showErrors=false&email= | National Science Foundation | AdeliePenguinAdultandChickCounts | ||||
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruiseChlorophyll.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruiseChlorophyll | https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruiseChlorophyll.graph | https://pallter-data.marine.rutgers.edu/erddap/files/CruiseChlorophyll/ | Chlorophyll and phaeopigments from water column samples, collected at selected depths aboard Palmer LTER annual cruises off the coast of the Western Antarctic Peninsula, 1991 - 2019. | Phytoplankton chlorophyll sampling was led by Smith from 1991-2002, and then by Vernet from 2003-2008. Schofield is the third, and current lead, beginning in 2009. Methods have been kept consistent as much as possible over the full time series and different Principal Investigators. Chlorophyll a (Chl a) is the principal photosynthetic pigment of phytoplankton, and is used as a proxy measurement for estimating phytoplankton biomass in water samples. Chl a concentrations reflect the distribution of active phytoplankton spatially and with depth in the water column and their changes over time. Phaeopigments are non-photosynthetic pigments that are degradation products of phytoplankton chlorophylls which form during and after phytoplankton blooms. 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 preformed and in surface waters at underway stations, where CTD casts are not done, using the ship's flow-through seawater system. Water samples are filtered onto GF/F filters, and filters kept frozen at -80°C until analysis at Palmer Station following the completion of the cruise. Fluorometric chlorophyll and phaeopigment analysis is conducted at Palmer Station through acetone extraction of the GF/F filters and measurement of the extract on a Turner 10AU Fluorometer. The primary source of error for phaeopigment measurement is Chlorophyll b. If high amounts of Chlorophyll b are present in the sample, phaeopigments may be overestimated.\n\ncdm_data_type = Trajectory\nVARIABLES:\nstudy_name (Study)\nchlorophyll_a (mass_concentration_of_chlorophyll_a_in_sea_water, mg m-3)\nphaeopigment (mg m-3)\nevent\nbottle\ntime (seconds since 1970-01-01T00:00:00Z)\ngrid_line\ngrid_station\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (m)\n... (7 more variables)\n | https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/CruiseChlorophyll_fgdc.xml | https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/CruiseChlorophyll_iso19115.xml | https://pallter-data.marine.rutgers.edu/erddap/info/CruiseChlorophyll/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/CruiseChlorophyll.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=CruiseChlorophyll&showErrors=false&email= | National Science Foundation | CruiseChlorophyll | ||
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/PalmerStationWeatherDailyAverages.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/PalmerStationWeatherDailyAverages | https://pallter-data.marine.rutgers.edu/erddap/tabledap/PalmerStationWeatherDailyAverages.graph | https://pallter-data.marine.rutgers.edu/erddap/files/PalmerStationWeatherDailyAverages/ | Daily averaged weather timeseries (air temperature, pressure, wind speed, wind direction, precipitation, sky cover) at Palmer Station, Antarctica combining manual observations (1989, Dec 12, 2003) and PALMOS automatic weather station measurements (Dec 13, 2003, March 2019). | Daily averaged weather timeseries (air temperature, pressure, wind speed, wind direction, precipitation, sky cover) at Palmer Station, Antarctica combining manual observations (1989 - Dec 12, 2003) and PALMOS automatic weather station measurements (Dec 13, 2003 - March 2019). Weather data acquisition was originally by manual observation and continued with an automated system installed in Nov 2001. Measurements began shifting from manual to automated observations in June 2003 until the manual observations were ended on December 12, 2003. Data are collected, compiled, and distributed by the US Antarctic polar contractor. Electronic distributed occurs monthly from Palmer station via internet and are available at University of Wisconsin weather archive: ftp://amrc.ssec.wisc.edu/pub/palmer/climatology/.Weather data acquisition was originally by manual observation and continued with an automated system installed in Nov 2001. Measurements began shifting from manual to automated observations in June 2003 until the manual observations were ended on December 12, 2003. Data are collected, compiled, and distributed by the US Antarctic polar contractor. Electronic distributed occurs monthly from Palmer station via internet and are available at University of Wisconsin weather archive: ftp://amrc.ssec.wisc.edu/pub/palmer/climatology/\n\ncdm_data_type = TimeSeries\nVARIABLES:\ntime (seconds since 1970-01-01T00:00:00Z)\nstation_id\nlatitude (degrees_north)\nlongitude (degrees_east)\nhigh_temperature (Air Temperature, degree_C)\nlow_temperature (degree_C)\navg_temperature (degree_C)\nsea_surface_temperature (degree_C)\nsea_ice\nhigh_pressure (Air Pressure, mbar)\nlow_pressure (mbar)\navg_pressure (mbar)\npeak_windspeed (Wind Speed, m s-1)\n... (14 more variables)\n
| https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/PalmerStationWeatherDailyAverages_fgdc.xml | https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/PalmerStationWeatherDailyAverages_iso19115.xml | https://pallter-data.marine.rutgers.edu/erddap/info/PalmerStationWeatherDailyAverages/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/PalmerStationWeatherDailyAverages.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=PalmerStationWeatherDailyAverages&showErrors=false&email= | National Science Foundation | PalmerStationWeatherDailyAverages | ||
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/OffshoreSedimentTrapFluxes.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/OffshoreSedimentTrapFluxes | https://pallter-data.marine.rutgers.edu/erddap/tabledap/OffshoreSedimentTrapFluxes.graph | https://pallter-data.marine.rutgers.edu/erddap/files/OffshoreSedimentTrapFluxes/ | Vertical fluxes of particulate carbon, nitrogen and phosphorus from a sediment trap deployed west of Palmer Station, Antarctica at a depth of 170 meters, 1992-present. | Particulate organic matter is exported from the upper ocean euphotic zone in the form of large sinking particles and as dissolved material. Particle fluxes to depth link the surface and mesopelagic realm and supply food to the benthos. Sedimentation flux is typically measured with sediment traps of various designs. Palmer LTER has deployed a time-series trap near 64.5degrees S, 66.0degrees W since late 1992. The trap is moored in 300 m depth and collects sinking particles at 150 m. Deployments and analyses were performed by David Karl, University of Hawaii until 2002 when Hugh Ducklow took over the sediment trap operations.Sedimentation at the PAL site of the West Antarctic Peninsula demonstrates extreme seasonality, with a well-defined pulse in the Austral summer following sea ice retreat. Daily sedimentation rates during the summer flux event are among the highest recorded globally. During the Austral winter when the ocean is covered by sea ice and shrouded in darkness, fluxes are among the lowest observed anywhere. Sedimentation rates at PAL typically vary by 4 orders of magnitude. There is also order of magnitude variability in the total annual flux (area under the curve)..Particulate organic matter is exported from the upper ocean euphotic zone in the form of large sinking particles and as dissolved material. Particle fluxes to depth link the surface and mesopelagic realm and supply food to the benthos. Sedimentation flux is typically measured with sediment traps of various designs. Palmer LTER has deployed a time-series trap near 64.5degrees S, 66.0degrees W since late 1992. The trap is moored in 300 m depth and collects sinking particles at 150 m. Deployments and analyses were performed by David Karl, University of Hawaii until 2002 when Hugh Ducklow took over the sediment trap operations.Sedimentation at the PAL site of the West Antarctic Peninsula demonstrates extreme seasonality, with a well-defined pulse in the Austral summer following sea ice retreat. Daily sedimentation rates during the summer flux event are among the highest recorded globally. During the Austral winter when the ocean is covered by sea ice and shrouded in darkness, fluxes are among the lowest observed anywhere. Sedimentation rates at PAL typically vary by 4 orders of magnitude. There is also order of magnitude variability in the total annual flux (area under the curve)..Particulate organic matter is exported from the upper ocean euphotic zone in the form of large sinking particles and as dissolved material. Particle fluxes to depth link the surface and mesopelagic realm and supply food to the benthos. Sedimentation flux is typically measured with sediment traps of various designs. Palmer LTER has deployed a time-series trap near 64.5degrees S, 66.0degrees W since late 1992. The trap is moored in 300 m depth and collects sinking particles at 150 m. Deployments and analyses were performed by David Karl, University of Hawaii until 2002 when Hugh Ducklow took over the sediment trap operations.Sedimentation at the PAL site of the West Antarctic Peninsula demonstrates extreme seasonality, with a well-defined pulse in the Austral summer following sea ice retreat. Daily sedimentation rates during the summer flux event are among the highest recorded globally. During the Austral winter when the ocean is covered by sea ice and shrouded in darkness, fluxes are among the lowest observed anywhere. Sedimentation rates at PAL typically vary by 4 orders of magnitude. There is also order of magnitude variability in the total annual flux (area under the curve).\n\ncdm_data_type = Other\nVARIABLES:\nstudy_name (Study)\n... (12 more variables)\n | https://pallter-data.marine.rutgers.edu/erddap/info/OffshoreSedimentTrapFluxes/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/OffshoreSedimentTrapFluxes.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=OffshoreSedimentTrapFluxes&showErrors=false&email= | National Science Foundation | OffshoreSedimentTrapFluxes | ||||
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruisePrimaryProduction.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruisePrimaryProduction | https://pallter-data.marine.rutgers.edu/erddap/tabledap/CruisePrimaryProduction.graph | https://pallter-data.marine.rutgers.edu/erddap/files/CruisePrimaryProduction/ | 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. | 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.\n\ncdm_data_type = Trajectory\nVARIABLES:\nstudy_name (Study)\ntime (seconds since 1970-01-01T00:00:00Z)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (m)\nevent\n... (7 more variables)\n | https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/CruisePrimaryProduction_fgdc.xml | https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/CruisePrimaryProduction_iso19115.xml | https://pallter-data.marine.rutgers.edu/erddap/info/CruisePrimaryProduction/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/CruisePrimaryProduction.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=CruisePrimaryProduction&showErrors=false&email= | National Science Foundation | CruisePrimaryProduction | ||
| https://pallter-data.marine.rutgers.edu/erddap/tabledap/ZooplanktonDensityHistorical.subset | https://pallter-data.marine.rutgers.edu/erddap/tabledap/ZooplanktonDensityHistorical | https://pallter-data.marine.rutgers.edu/erddap/tabledap/ZooplanktonDensityHistorical.graph | https://pallter-data.marine.rutgers.edu/erddap/files/ZooplanktonDensityHistorical/ | Zooplankton collected aboard Palmer Station LTER annual cruises off the western antarctic peninsula, 1993, 2008. | Zooplankton collected aboard Palmer Station LTER annual cruises off the western antarctic peninsula, 1993 - 2008. Samples were collected with a 2-m, 700-um net towed from surface to 120 m. This dataset is the historical (1993 - 2008) counterpart to dataset #199, Zooplankton Density - Current. Together these two data sets comprise the full Palmer LTER zooplankton density time series. Please refer to the methods of each dataset for differences between the two.\n\ncdm_data_type = Trajectory\nVARIABLES:\ntime (Start Time, seconds since 1970-01-01T00:00:00Z)\ndepth (m)\nlatitude (degrees_north)\nlongitude (degrees_east)\nend_time (seconds since 1970-01-01T00:00:00Z)\nlat_end (Latitude, degrees_north)\nlon_end (Longitude, degrees_east)\ncruise_tow_number\ncruise_name\nevent\ntow_number\ngrid_line\ngrid_station\ntow_duration (minutes)\nheading (degrees)\nspeed_over_ground\nwind_speed_start (Wind Speed)\nwind_direction (Wind From Direction, degrees)\nnet_id\ntow_type\ntarget_depth (Depth)\ndepth_max (Depth, meters)\nvolume_filtered (m3)\n... (60 more variables)\n | https://pallter-data.marine.rutgers.edu/erddap/metadata/fgdc/xml/ZooplanktonDensityHistorical_fgdc.xml | https://pallter-data.marine.rutgers.edu/erddap/metadata/iso19115/xml/ZooplanktonDensityHistorical_iso19115.xml | https://pallter-data.marine.rutgers.edu/erddap/info/ZooplanktonDensityHistorical/index.htmlTable | https://pal.lternet.edu/
| http://pallter-data.marine.rutgers.edu/erddap/rss/ZooplanktonDensityHistorical.rss | https://pallter-data.marine.rutgers.edu/erddap/subscriptions/add.html?datasetID=ZooplanktonDensityHistorical&showErrors=false&email= | National Science Foundation | ZooplanktonDensityHistorical |