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1. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012 [Plant_Root_Characteristics_Dynamics_Arctic_Tundra_Ecosystems_1960-2012]
Plant roots play a critical role in ecosystem function in arctic tundra, but root dynamics in these ecosystems are poorly understood. To address this knowledge gap, we synthesized available literature ...


2. Soil Physical, Chemical, and Thermal Characterization, Teller Road Site, Seward Peninsula, Alaska, 2016 [Soil_Physical_Chemical_Thermal_Characterization_Teller_Road_Site_Seward_Peninsu]
This dataset provides the results of physical, chemical, and thermal characterization of soils at the Teller Road Site, Seward Peninsula, Alaska. Soil pits were dug from 7-14 September 2016 at designated ...


3. Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1 [Soil_temperature_soil_moisture_thaw_depth_Barrow_Alaska_Ver_1]
This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A to D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, ...


4. Surface and Active Layer Pore Water Chemistry from Ice Wedge Polygons, Barrow, Alaska, 2013-2014 [Surface_Active_Layer_Pore_Water_Chemistry_Ice_Wedge_Polygons_Barrow_Alaska_2013]
This data set reports the results of spatial surveys of aqueous geochemistry conducted at Intensive Site 1 of the Barrow Environmental Observatory in 2013 and 2014 (Herndon et al., 2015). Surface ...


5. CO2 and CH4 Surface Flux, Soil Profile Concentrations, and Stable Isotope Composition, Barrow, Alaska, 2012-2013 [Soil_profiles_of_trace_gas_concentrations_and_stable_isotopes]
In August-October 2012 and June-October 2013, co-located measurements were made of surface CH4 and CO2 flux, soil pore space concentrations and stable isotope compositions of CH4 and CO2, and subsurface ...


6. Mosaicked Historic Airborne Imagery from Seward Peninsula, Alaska, Starting in the 1950's [Mosaicked_Historic_Airborne_Imagery_Seward_Peninsula_Alaska_Starting_1950s]
Historical airborne imagery for each Seward Peninsula NGEE Arctic site - Teller, Kougarok, Council - with multiple years for each site. This dataset includes mosaicked, geolocated and, where possible, ...


7. NGEE Arctic Plant Traits: Soil Cores, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, 2016 [NGEE Arctic Plant_Traits_Soil_Cores_Kougarok_Road_Mile_Marker_64_Seward_Peninsu]
Data describes soil cores collected at vegetation plots at the Kougarok hill slope located at Kougarok Road, Mile Marker 64 in July 2016. Data upload will be completed January 2017.


8. NGEE Arctic Plant Traits: Soil Depth, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, Beginning 2016 [NGEE_Arctic Plant_Traits_Soil_Depth_Kougarok]
Soil depth was measured at the Kougarok site located on the Seward Peninsula using a thaw depth probe inserted into the ground until the point of contact with frozen soil or rock. Measurements were ...


9. NGEE Arctic Plant Traits: Soil Temperature and Moisture, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, beginning 2016 [NGEE_Arctic_Plant_Traits_Soil_Temperature_Moisture_Kougarok_64_AK_2016_1]
Data includes soil temperature and soil moisture measured at the Kougarok hill slope located at Kougarok Road, Mile Marker 64. Most measurements are from monitoring stations with permanently installed ...


10. Vegetation Warming Experiment: Plant Physiology, Barrow, Alaska, 2017 [Vegetation_Warming_Experiment]
Gas exchange measurements of vegetation within warming chambers and paired control plots.


11. A U.S. Historical Snow Data Base from Rutgers University [RUTGERS_SNOW]
This digital data set contains daily information on snowfall and snow depth for approximately 1000 NOAA observing stations (mainly cooperative sites) in 47 of the 48 conterminous U.S. Some 370 stations ...


12. Inventory and Monitoring Project, Vegetation Protocol, Denali National Park and Preserve [usgsbrdasc0011]
The location of the zone of transition between boreal forest and tundra, often referred to as treeline, has shifted in the past in response to climate change. Global warming is predicted ...


13. Marine Managed Areas of the United States: National Estuarine Research Reserve System Digital Boundaries [CZM_moris_mpa_nerr_ma_poly]
Executive Order 13158 mandates that the U.S. Departments of Commerce and the Interior "publish and maintain a list of Marine Protected Areas (MPAs) that meet the definition of MPA for the purposes ...


14. Forest Health Monitoring Program (FHMP), USDA Forest Service [usdafs_d_fhmp]
The Forest Health Monitoring (FHM) program is a multi-agency, cooperative effort to determine the status, changes,and trends in all forest ecosystems in the United States on an annual basis. The ...


15. Kachemak Bay (KAC) NERR Nutrient Metadata February - December, 2002 Last updated March 31, 2005 [CDMO_kacnut01-12.02m]   PARENT METADATA
Nutrient monitoring is conducted at 26 National Estuarine Research Reserves (NERR) from four locations within or adjacent to the reserve on a monthly basis of the following parameters: orthophosphate, ...


16. Kachemak Bay (KAC) NERR Nutrient Metadata January - December, 2003 Last updated: March 31, 2005 [CDMO_kacnut01-12.03m]   PARENT METADATA
Nutrient monitoring is conducted at 26 National Estuarine Research Reserves (NERR) from four locations within or adjacent to the reserve on a monthly basis of the following parameters: orthophosphate, ...


17. Kachemak Bay (KAC) NERR Nutrient Metadata January - December, 2004 Last updated: October 20, 2005 [CDMO_kacnut01-12.04m]   PARENT METADATA
Nutrient monitoring is conducted at 26 National Estuarine Research Reserves (NERR) from four locations within or adjacent to the reserve on a monthly basis of the following parameters: orthophosphate, ...


18. Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata January - December 2002 Latest Update: September 11, 2003 [CDMO_kacwq01-12.02m]   PARENT METADATA
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR) at four locations within or adjacent to the reserve. The following parameters are collected at least every 30 ...


19. Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata January - December 2004 Latest update: March 23, 2005 [CDMO_kacwq01-12.03m]   PARENT METADATA
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR) at four locations within or adjacent to the reserve. The following parameters are collected at least every 30 ...


20. Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata January - December 2004 Latest update: March 23, 2005 - CDMO_kacwq01-12.04m [CDMO_kacwq01-12.04m]   PARENT METADATA
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR) at four locations within or adjacent to the reserve. The following parameters are collected at least every 30 ...


21. Kachemak Bay Research Reserve (KAC) NERR Water Quality Metadata July - December 2001 Latest Update: August 28, 2002 [CDMO_kacwq07-12.01m]
Water quality monitoring is conducted at 26 National Estuarine Research Reserves (NERR) at four locations within or adjacent to the reserve. The following parameters are collected at least every 30 ...


22. Meteorological metadata explanations Kachemak Bay Research Reserve (KAC) Meteorological Metadata January 2004 - December 2004 Latest update April 25, 2005 [CDMO_kacmet01-12.04m]   PARENT METADATA
Meteorological monitoring is conducted at 26 National Estuarine Research Reserves (NERR) from at least one location within or adjacent to the reserve. Data are collected every 5 seconds and averages ...


23. USDA Forest Service Noxious/Invasive Database [usdafs_d_fsnoxious]
The Forest Service Noxious/Invasive Database consists of three elements: administrative and reporting, inventory, and biological control information. The administrative reporting section is part of ...


24. Alaska State Soil Survey Database (SSSD); NRCS [EARTH_LAND_SCS_AK_Soil_DB]
The Alaska State Soil Survey Database (SSSD) is a digital data set with all attribute data for twelve (12) national cooperative soil survey projects throughout Alaska. They include physical ...


25. May and August 1997 AVHRR images of the Beaufort Sea [WYLIE_BEAUFORT_SEA_AVHRR]
Donald Wylie from the University of Wisconsin has assembled GAC IR and visible images at 5 km resolution for the Beaufort Sea Arctic Region. There are two IR and one visible image per day. Sea level ...


26. Reindeer Vegetation and Range Community Surveys; USDA/SCS [EARTH_OCEAN_SCS_Reindeer_Range]
This report is a collection of vegetation and range community studies conducted throughout Alaska, with special emphasis on reindeer habitat and associated vegetation.


27. Soil Survey Digitized Maps; USDA/SCS [EARTH_LAND_SCS_AK_Soil_Maps]
Soil Survey Digitized Maps come from digital data sets. This data set includes digitized soil survey maps of Alaska, rectified to orthophoto base using the DLG-3 format. The data ...


28. Representativeness-based Sampling Network Design for the State of Alaska [Representativeness-based_Sampling_Network_Design_State_Alaska]
Resource and logistical constraints limit the frequency and extent of environmental observations, particularly in the Arctic, necessitating the development of a systematic sampling strategy to maximize ...


29. Alaska High Altitude Aerial Photography (AHAP) Program [EARTH_LAND_USGS_AK_HI_ALT_PHOT]
[From GeoData Center Home Page descriptions, "http://www.gi.alaska.edu/alaska-satellite-facility/geodata-center"] The GeoData Center is the browse facility for the state copy of ...


30. Alaska Permafrost Drillhole Temperature Logs (PTDAK); U. Alaska Geophysical Institute [EARTH_LAND_UAK_GI_Permafrost1]
This data set (PTDAK) includes handwritten temperature logs from drill holes in permafrost. The time series consists of temperatures versus time for active layer and permafrost. Data ...


31. Landsat Imagery from the University of Alaska Geophysical Institute, GeoData Center [ALI]
Landsat imagery at the University of Alaska's Geophysical Institute includes data covering Alaska and the surrounding areas since 1972. The collection is comprised primarily of Multispectral ...


32. Marine Regions for the Bering Sea Integrated Ecosystem Research Program [BSIERP_MarineRegions]
ABSTRACT: A total of 16 marine regions on the Bering Sea shelf and slope were drawn based on a consensus across researchers of the joint Bering Ecosystem Study - Bering Sea Integrated Research Program. ...


33. Yakuta South Alaska Coastal Wildlife Surveys 2004-2005 [UAF_Yakutat]
This data set contains coastal survey data for summer and winter for the Yakutat, southern Alaska, region. It covers basic transects for marine wildlife, e.g. waterbirds, seabirds and ...


34. NOAA National Operational Hydrologic Remote Sensing Center (NOHRSC) Snow Cover Data [NOHRSC_SNOW]
The NOAA National Operational Hydrologic Remote Sensing Center (NOHRSC) web site is http://www.nohrsc.noaa.gov/. NOHRSC also has an operation snow products search engine for locating NOHRSC data: ...


35. 2012 National Anthropogenic Barrier Dataset (NABD) [NFHP_NAPD-2012]
ABSTRACT: The main objective of this project was to develop a dataset of large, anthropogenic barriers that are spatially linked to the National Hydrography Dataset Plus Version 1 (NHDPlusV1) for ...


36. Long-Term Ecological Research (LTER)/ARC001: Population Size Growth of Arctic Grayling at Kuparuk River and Oksrukuyik Creek, Alaska [LTER_ARC001]
LTER - Long-Term Ecological Research Program/Toolik Lake, Arctic Tundra, Alaska (ARC) LTER/ARC001 [Summary adapted from the LTER Core Data Set Catalog]: Arctic Grayling ...


37. Long-Term Ecological Research (LTER)/ARC002: Zooplankton Communities in Toolik Lake, Arctic Tundra, Alaska [LTER_ARC002]
LTER - Long-Term Ecological Research Program/Toolik Lake, Arctic Tundra, Alaska (ARC) LTER/ARC002 [Summary adapted from the LTER Core Data Set Catalog]: Vertical zooplankton tows were taken at two ...


38. Long-Term Ecological Research (LTER)/ARC004: Physical and Chemical Data for Toolik Lake, Arctic Tundra, Alaska [LTER_ARC004]
LTER - Long-Term Ecological Research Program/Toolik Lake, Arctic Tundra, Alaska (ARC) LTER/ARC004 [Summary adapted from the LTER Core Data Set Catalog]: Depth profiles of Toolik Lake were taken ...


39. Long-Term Ecological Research (LTER)/ARC005: Stream Discharge for Kuparuk River, Arctic Tundra, Alaska [LTER_ARC005]
LTER - Long-Term Ecological Research Program/Toolik Lake, Arctic Tundra, Alaska (ARC) LTER/ARC005 [Summary adapted from the LTER Core Data Set Catalog]: Stage height ...


40. GIS Resource Compendium [HYDROSPHERE_INC_GIS_RESOURCES]
Statistics for environmnental measurements, with point locations for measurement stations, and contextual GIS data. Available statistics include, daily and yearly averaged USGS streamflow and ground ...


41. IAI-FinalReport_IAI-Final Report_ISP3_018: Effects of species and functional diversity on ecosystem function [IAIDIS518]
This dataset refers to the Final Report of the ISP round III project number 018, which has the name "Effects of species and functional diversity on ecosystem function: a comparison between ...


42. Annual Peak Discharge and Stage of US Surface Water; USGS [EARTH_LAND_USGS_Water_PKFIL]
Originally available as hard copy publication, the Annual Peak Discharge and Stage of US Surface Water data will be made available to the public via the World Wide Web. The URL of the ...


43. National Water Information System (NWISWeb) [USGS_WRD_NWIS-W]
The National Water Information System database (NWIS)provide access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, and Puerto Rico. ...


44. A Compilation of Sulphur Dioxide and Carbon Dioxide Emission-Rate Data from Cook Inlet Volcanoes, Alaska During the Period from 1990 to 1994 [OFR_95-55]
This report contains all of the available daily sulfur dioxide and carbon dioxide emission rates from Cook Inlet volcanoes as determined by the U.S. Geological Survey (USGS) from March 1990 through ...


45. Alaska Geodetic Control Files; USGS [EARTH_LAND_USGS_ALASKA_GEODETIC]
Positional (horizontal) central data and elevational (vertical) control data for the state of Alaska. Data may include description of control points and 'to-reach' information. ...


46. Alaska Radiocarbon Data Base; USGS, Menlo Park [USGS_ALASKA_RADIOCARBON]
This data base contains published radiocarbon dates with entries consisting of laboratory and reference numbers. The data set is subdivided into two segments including RCFILE which contains the radiocarbon ...


47. Alaskan Fossil Identification File [EARTH_LAND_USGS_ALASKA_FOSSILS1]
The data base consists of a compilation of reports made by the U.S. Geological Survey Branch of Paleontology and Stratigraphy concerning the identification of fossils collected in Alaska. Data includes ...


48. Alaskan Geologic Field Notebooks; USGS, Anchorage [EARTH_CRUST_USGS_AK_NOTEBOOKS1]
These notebooks are the original field records of geologic observations made by USGS geologists working in Alaska. They contain field stations, sample numbers, rock types and descriptions, terrain ...


49. Alaskan Rocks - Petrographic Thin Sections; USGS, Anchorage [EARTH_CRUST_AK_PETROGRAPH_THIN1]
A collection of petrographic thin sections made from rock samples collected by USGS field geologists in Alaska. Many of the sections have corresponding descriptions cards; thin sections number 30,000. ...


50. Beechey Point, Alaska Vegetation and Land Cover, USGS, Alaska [EARTH_LAND_USGS_AK_B_Landcover1]
Vegetation and land cover for Beechey Point 1:250,000-scale topographic quadrangle. Derived from a single Landsat MSS scene. Printed map: AK Vegetation and Land Cover Series l-0211. Digital raster ...


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