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126 Titles Match Your Query
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1. CO2 and CH4 Fluxes across Polygon Geomorphic Types, Barrow, Alaska, 2006-2010 [CO2_CH4_Fluxes_across_Polygon_Geomorphic_Types_Barrow_Alaska_2006-2010]
Carbon flux data are reported as Net Ecosystem Exchange (NEE), Gross Ecosystem Exchange (GEE), Ecosystem Respiration (ER), and Methane (CH4) flux. Measurements were made at 82 plots across various ...


2. Collaborative Core Processing and Analysis [Collaborative_Core_Processing_Analysis]
Core characterization and analysis data are in progress and include core processing outline, thermal conductivity results, and core descriptions (cryo-structure). These data will be updated with geochemical, ...


3. Geochemical and isotopic water results, Barrow, Alaska, 2012-2013 [Geochemical_isotopic_water_results_Barrow_Alaska_2012-2013]
Data include a large suite of analytes (geochemical and isotopic) for samples collected in Barrow, Alaska (2012-2013). Sample types are indicated, and include soil pore waters, drainage waters, snowmelt, ...


4. Active Layer and Moisture Measurements for Intensive Site 0 and 1, Barrow, Alaska [Active_Layer_Moisture_Measurements_Intensive_Site_0_1_Barrow_Alaska]
These are measurements of Active Layer Thickness collected along several lines beginning in September, 2011 to the present. The data were collected at several time periods along the Site0 L2 Line, ...


5. Compiled Multi-Lab Geochemistry Synoptic Survey (LANL, ORNL, LBNL), Barrow, Alaska; 2012 [Compiled_Multi-Lab_Geochemistry_Synoptic_Survey_Barrow_Alaska_2012]
Polygonal ground is a signature characteristic of the Arctic, and permafrost thaw can potentially generate substantial feedbacks to Arctic ecosystems and climate. This study describes the first comprehensive ...


6. Continuous Snow Depth, Intensive Site 1, Barrow, Alaska [Continuous_Snow_Depth_Intensive_Site_1_Barrow_Alaska]
Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow. These data assist in the calculation of the energy balance at the land surface and are ...


7. Electrical and Seismic Response of Saline Permafrost Soil during Freeze - Thaw Transition: Supporting Data [Electrical_Seismic_Response_Saline_Permafrost_Soil_Freeze_Thaw_Tran_Support]
Saline permafrost core from site 0 transect at 260-280cm below ground surface.


8. Hydraulic Conductivity Measurements Barrow 2014 [Hydraulic_Conductivity_Measurements_Barrow_2014]
Six individual ice cores were collected from Barrow Environmental Observatory in Barrow, Alaska, in May of 2013 as part of the Next Generation Ecosystem Experiment (NGEE). Each core was drilled from ...


9. Influences and Interactions of Inundation, Peat, and Snow on Active Layer Thickness: Modeling Archive [Inundation_Peat_Snow_Active_Layer_Thickness_Modeling_Archive]
The Advanced Terrestrial Simulator was used to simulate thermal hydrological conditions across varied environmental conditions for an ensemble of 1D models of Arctic permafrost. The thickness of organic ...


10. Inorganic Carbon Isotopes and Chemical Characterization of Watershed Drainages, Barrow, Alaska, 2013 [Inorganic_CarbonIso_Chem_Char_Watershed Drainage_Barrow_AK_2013]
Data include results from geochemical and isotopic analyses for samples collected in Barrow, Alaska during July and September 2013. Samples were soil pore waters from 17 drainages that could be interlake ...


11. Nitrogen concentration and isotope dataset for environmental samples from 2012 and 2013, Barrow, Alaska [Nitrogen_concentration_and_isotope_dataset]
Dataset includes nitrate concentrations for polygonal active layer samples, snowmelt; ammonium concentrations for active layer samples; nitrate isotopes for active layer samples, snowmelt, permafrost; ...


12. Organic Carbon Transformation and Mercury Methylation in Tundra Soils from Barrow Alaska [Organic_Carbon_Transformation_Mercury_Methylation_Tundra_Soils_Barrow_AK]
This dataset includes information on soil labile organic carbon transformation and mercury methylation for tundra soils from Barrow, Alaska. The soil cores were collected from high-centered polygon ...


13. 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 ...


14. Remote sensing-based characterization, 2-m, Plant Functional Type Distributions, Barrow Environmental Observatory, 2010 [Remote_sensing_characterization_2-m_Plant_Functional_Distributions_2010]
Remote sensing-based characterization of plant functional type distributions at the Barrow Environmental Observatory. Dataset DOI: http://dx.doi.org/10.5440/1123668. Additional details are available ...


15. 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 ...


16. Soil Temperature and Moisture, Council Road Mile Marker 71, Seward Peninsula, Alaska, beginning 2016 [NGEE_Soil _Temp_Moisture_Council_1]
Daily averages of soil temperature and moisture measured once every hour at different heights. The "vertical_offset" field represents the heights. Deployed at each site is an Onset HOBO U30 data logger ...


17. 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, ...


18. 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 ...


19. Vegetation Warming Experiment: Leaf Mass Area, Leaf Carbon and Nitrogen Content, Barrow, Alaska, 2017 [NGEE_11_7_2018_1]
Leaf mass per area (LMA), leaf carbon and nitrogen content of vegetation (Petasites frigidus) within warming chambers and paired control plots. See related datasets for plant physiology, phenology ...


20. CO2 and CH4 Production and CH4 Oxidation in Low Temperature Soil Incubations from Flat- and High-Centered Polygons, Barrow, Alaska, 2012 [CO2_CH4_Production_CH4_Oxidation_Low_Temperature_Soil_Incubations_Flat_High_Cen]
The dataset consists of respiration and methane production rates and methane oxidation potential obtained from soil microcosm studies carried out under controlled temperature and incubation conditions. ...


21. Digital Elevation Model, 0.25 m, Barrow Environmental Observatory, Alaska, 2013 [Digital_Elevation_Model_0.25m_Barrow_Environmental_Observatory_Alaska_2013]
This 0.25m horizontal resolution digital elevation model, DEM, was developed from Airborne Laser Altimetry flown by Aerometric Inc, now known as Quantum Spatial, Inc. on 12 July, 2013. One Mission ...


22. Digital Elevation Model, 0.5 m, Barrow Environmental Observatory, Alaska, 2012 [Digital_Elevation_Model_0.5m_Barrow_Environmental_Observatory_Alaska_2012]
This 0.5m horizontal resolution digital elevation model, DEM, was developed from Airborne Laser Altimetry flown by Aerometric Inc, now know as Quantum Spatial, Inc. on 12 August, 2012. One Mission ...


23. In Situ Leaf Level Gas Exchange Measurements, Barrow, Alaska, 2013 [In_Situ_Leaf_Level_Gas_Exchange_Measurements_Barrow_Alaska_2013]
Survey measurements of photosynthetic rate and stomatal conductance together with carbon dioxide concentration, temperature, PAR, and relative humidity for 8 species on the BEO. http://dx.doi.org/10.5440/1167160. ...


24. NGEE Arctic HR1024i Canopy Spectral Reflectance, Drained Thaw Lake Basin, Barrow, Alaska, July 2015 [NGEE_Arctic_HR1024i]
Measurements of full-spectrum (i.e. 350-2500nm) canopy spectral reflectance along the NGEE-Arctic DTLB_2 in Barrow, Alaska. Spectra were collected using the HR-2014i instrument mounted on a tripod ...


25. NGEE Arctic Plant Traits: Vegetation Plot Locations, Ecotypes, and Photos, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, 2016 [NGEE_Arctic_Plant_Traits_Vegetation_Locations_Ecotypes_Photos_Kougarok]
Data includes GPS waypoints for intensive plots, reference points, vegetation plots, and soil temperature/moisture monitoring stations that were established in July 2016 at the Kougarok hill slope ...


26. NGEE Arctic Tram: Continuous Soil Moisture and Temperature Measurements across Low- and High-Centered Polygonal Ground, Barrow, Alaska, 2014-2016 [NGEE_Arctic_Tram_01]
This data set reports the continuous soil moisture and temperature measurements collected from August of 2014 to September of 2016 along the footprint of the NGEE Arctic Tram. Soil moisture and temperature ...


27. Plant Available Nutrients, Barrow, Alaska, Ver. 1 [Plant_Available_Nutrients_Barrow_Alaska_Ver1]
This dataset reports measurements of plant available nutrients made using; Plant Root Simulator (PRS) probes (Western Ag Innovations Inc.) during 2012 and 2013 at the Next-Generation Ecosystem Experiments ...


28. Soil Organic Carbon Degradation in Low Temperature Soil Incubations from Flat- and High-Centered Polygons, Barrow, Alaska, 2012-2013 [NGEE_Soil_Organic_Carbon_Degradation_Flat_High_Centered_1]
This dataset provides information about organic acids accumulation and ferrous ion concentrations during soil incubations at controlled temperature. Soil cores were collected in 2012 and 2013 from ...


29. Soil Physical, Chemical, and Thermal Characterization, Council Road Site, Seward Peninsula, Alaska, 2016 [Soil_Physical_Chemical_Thermal Characterization_Council_Road_Site_Seward_Penins]
This dataset provides the results of physical, chemical, and thermal characterization of soils at the Council Road Site at MM71, Seward Peninsula, Alaska. Soil pits were dug on 11 September 2016 at ...


30. Soil Physicochemical Characteristics from Ice Wedge Polygons, Barrow, Alaska, Ver. 1 [Soil_Physicochemical_Characteristics_Ice_Wedge_Polygons_Barrow_Alaska_Ver1]
This dataset provides details about soil cores (active layer and permafrost) collected from ice-wedge polygons during field expeditions to Barrow Environmental Observatory, Alaska in April, 2012 and ...


31. Soil Water Characteristics of Cores from Low- and High-Centered Polygons, Barrow, Alaska, 2012 [Soil_Water_Char_Cores_Low_High_Centered_Polygons_Barrow_Alaska_2012]
This dataset includes soil water characteristic curves for soil and permafrost in two representative frozen cores collected from a high-center polygon (HCP) and a low-center polygon (LCP) from the ...


32. Surface Meteorology at Kougarok Site Station, Seward Peninsula, Alaska, Ongoing from 2017 [NGEE_Surface_Meteorology_Kougarok_1]
Meteorological data are currently being collected at one location at the top of the Kougarok hill, Seward Peninsula. This December 18, 2017 release includes data for: Teller Creek Station near TL_BSV ...


33. UAS Remote Sensing Datasets, Seward Peninsula, Alaska, 2017 [UAS_Remote_Sensing_Datasets]
Very high spatial resolution digital imagery, derived canopy height using structure from motion (SfM) technique, visible to near-infrared canopy reflectance, and thermal infrared (TIR) imagery collected ...


34. Acid-Base Titration Curves of Soils from a Low-Centered Polygon, Barrow, Alaska, 2013 [Acid-Base_Titration_Curves_Soils_Low-Centered_Polygon_Barrow_Alaska_2013_1]
This dataset provides pH titration data of soils from a low-centered polygon center. The soil core was collected in 2013 from a low-centered polygon center from the NGEE-Arctic Intensive Study Site ...


35. Active Layer Soil Carbon and Nutrient Mineralization, Barrow, Alaska 2012 [Active_Layer_Soil_Carbon_Nutrient_Mineralization_Barrow_Alaska_2012_NA]
This data set consists of bulk soil characteristics as well as carbon and nutrient mineralization rates of active layer soils manually collected from the field in August, 2012, frozen, and then thawed ...


36. Addressing numerical challenges in introducing a reactive transport code into a land surface model: A biogeochemical modeling proof-of-concept with CLM-PFLOTRAN 1.0: Modeling Archive [CLM-PFLOTRAN_1.0]
This Modeling Archive is in support of an NGEE Arctic discussion paper under review and available at doi:10.5194/gmd-9-927-2016.


37. 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 ...


38. Meteorological Forcing at Barrow AK 1985-2013 [Meteorological_Forcing_Barrow_AK_1985-2013]
Gap-filled half-hourly meteorological driving data for CLM from 1985 - 2013. The original datasets are from the Barrow, AK station of NOAA/Earth System Laboratory, Global Monitoring Division (http://www.esrl.noaa.gov/gmd/obop/brw/), ...


39. 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, ...


40. NGEE Arctic Core Locations, Sampling Characteristics, Collection, and Contacts, Barrow, Alaska, USA [NGEE_Arctic_Core_Locations_Sampling_Characteristics_Collection_Contacts_Barrow_]
This dataset includes associated information about individual core samples (e.g. collection date, storage location, core length, thaw depth). This information is supplemental to the "NGEE Instrumentation ...


41. NGEE Arctic Leaf Spectral Reflectance, Barrow, Alaska 2013 [NGEE_Arctic_Leaf_Spectral_Reflectance_Barrow_AK_2013_1]
Measurements of full-spectrum (i.e. 350-2500nm) leaf spectral reflectance of 9 Arctic plant species within the BEO, Barrow, Alaska. Spectra were collected using an ASD Field Spec 3 full range spectroradiometer ...


42. 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.


43. 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 ...


44. 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 ...


45. NGEE Arctic Tram: Photographs over Low- and High-Centered Polygon Vegetation Communities, Barrow, Alaska, 2014-2017 [NGEE_Arctic_Tram_Photographs]
This dataset provides a digital image of each measurement position stop for every run of the Tram. There are 137 stops per run and there were sometimes multiple runs per day. This first version provides ...


46. NGEE Arctic Tram: Radiation and Environmental Measurements over Low- and High-Centered Polygon Vegetation Communities, Barrow, Alaska, 2014-2017 [NGEE_Arctic_Tram_Radiation and Environmental Measurements_1]
Data generated from an observational platform (Tram) consisting of 68 meters of elevated track 1 to 1.5 meters above the surface and an automated cart carrying a suite of radiation and remote sensing ...


47. NGEE Arctic Webcam Photographs, Barrow Environmental Observatory, Barrow, Alaska [NGEE_Arctic_Webcam_Photographs_Barrow_Environmental_Observatory_Barrow_Alaska]
The NGEE-Arctic Webcam (PTZ Camera) captures two views of seasonal transitions from its generally south-facing position on a tower located at the Barrow Environmental Observatory near Barrow, Alaska. ...


48. NGEE Arctic Zero Power Warming PhenoCamera Images, Barrow, Alaska, 2016 [NGEE_Arctic_Zero_Power_Warming_PhenoCamera]
StarDot NetCam SC pheno camera images collected from the top of the Barrow, BEO Sled Shed. The camera was installed to monitor the BNL TEST group's prototype ZPW (Zero Power Warming) chambers during ...


49. Remote Sensing-Based, 5-m, Vegetation Distributions, Kougarok Study Site, Seward Peninsula, Alaska, ca. 2009 - 2016 [NGEE_Remote_Sensing_5m_Veg_Dist_Kougarok_1]
A multi-sensor remote sensing-based deep learning approach was developed for generating high-resolution (5~m) vegetation maps for the western Alaskan Arctic on the Seward Peninsula, Alaska. This data ...


50. Snow Depth and Density at End-of-Winter for NGEE Areas A, B, C and D, Barrow, Alaska, 2012-2014 [Snow_Depth_Density_Winter_NGEE_A_B_C_D_Barrow_ AK_2012_2014]
End-of-winter snow depth and average snow density from area A, B, C and D, which include 1000's of point depth measurement located between ~20 and ~50 cm apart. Dataset DOI: http://dx.doi.org/10.5440/1236472 ...


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