107 Works

Leaf Photosynthetic Parameters: Quantum Yield, Convexity, Respiration, Gross CO2 Assimilation Rate and Raw Gas Exchange Data, Barrow, Alaska, 2016

Alistair Rogers, Kim Ely & Shawn Serbin
Leaf photosynthetic parameters including quantum yield, convexity, respiration and gross CO2 assimilation rate determined from the response of photosynthesis to irradiance and supporting raw gas exchange data. Measured in Barrow, Alaska in 2016 on six plant species: Arctophila fulva, Arctagrostis latifolia, Carex aquatilis, Eriophorum angustifolium, Petasites frigidus, and Salix pulchra.

Soil Organic Horizon Exometabolomics Extracts and Soil Characteristics with Depth, Barrow, Alaska, 2014

Mallory Ladd
This dataset provides the results of physical and chemical characterization of soil organic horizons collected from the Barrow Environmental Observatory (BEO) near Barrow, Alaska. Four cores were collected 24-29 August 2014, two from a low-centered polygon center at area A and two from a high-centered polygon center at area B. The aboveground vegetation for one core at each site was primarily Carex aquatilis or Eriophorum angustifolium. Each organic horizon was sectioned into three operationally-defined 5-cm...

NGEE Arctic Leaf Spectral Absorptance, Barrow, Alaska, 2015-2016

Shawn Serbin
Leaf level reflectance on each sample leaf was measured using a portable, full range (i.e. 0.35 to 2.5 microns) Spectra Vista Corporation (SVC) HR-1024i spectroradiometer, together with a leaf clip assembly with an internal, calibrated light source (SVC, Poughkeepsie, NY, USA). Each measurement was referenced against a LabSphere Spectralon (R) standard (LabSphere, Inc., North Sutton, NH, USA) to calculate leaf reflectance from the ratio of target and standard calibrated radiance measurements for each leaf. For...

Electrical Resistance Tomographic Profile L2, Site 0, Barrow AK

Susan Hubbard & Baptiste Dafflon
Figure 7a in http://esd.lbl.gov/files/about/staff/susanhubbard/PUBLISHED_-_Hubbard-Hydrogeology-2012_with_Gangodagamage_et_al.pdf

Ice Wedge Polygon Bromide Tracer Experiment in Subsurface Flow, Barrow, Alaska, 2015-2016

Nathan Wales
Time series of bromide tracer concentrations at several points within a low-centered polygon and a high-centered polygon. Concentration values were obtained from the analysis of water samples via ion chromatography with an accuracy of 0.01 mg/l.

CO2 and CH4 Production in Low-Temperature Soil Incubations from Low and High Centered Polygons, Barrow, Alaska, 2012-2013

Taniya RoyChowdhury, David Graham & Stan Wullschleger
The dataset consists of respiration and methane production rates obtained from soil microcosm studies carried out under controlled temperature and incubation conditions. Soils represent the low- and high-centered polygon active layers and permafrost (when present) from the NGEE-Arctic Intensive Study Site 1.

NGEE Arctic Tram: Radiation and Environmental Measurements over Low- and High-Centered Polygon Vegetation Communities, Barrow, Alaska, 2014-2017

Bryan Curtis & Margaret Torn
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 instruments (see below table). The Tram is in the footprint of NGEE Arctic/AmeriFlux tower at the Barrow Environmental Observatory, Barrow, Alaska.

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

Larry Hinzman, Bob Busey, William Cable & Vladimir Romanovsky
Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

CO2 and CH4 Production and CH4 Oxidation in Low Temperature Soil Incubations from Flat- and High-Centered Polygons, Barrow, Alaska, 2012

David Graham, Jianqiu Zheng & Taniya RoyChowdhury
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. Soils cores collected in 2012 represent the flat- and high-centered polygon active layers and permafrost (when present) from the NGEE Arctic Intensive Study Site 1, Barrow, Alaska.

Hydraulic Conductivity Measurements Barrow 2014

Katie McKnight, Tim Kneafsey, Craig Ulrich & Jil Geller
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 a different location at varying depths. A few days after drilling, the cores were stored in coolers packed with dry ice and flown to Lawrence Berkeley National Laboratory (LBNL) in Berkeley, CA. 3-dimensional images of the cores were constructed using a medical X-ray computed...

Soil temperature, soil moisture and thaw depth, Barrow, Alaska, Ver. 1

V. Sloan, J. Liebig, M. Hahn, J. Curtis, J. Brooks, A. Rogers, C. Iversen & R. Norby
This dataset consists of field measurements of soil properties made during 2012 and 2013 in areas A-D of Intensive Site 1 at the Next-Generation Ecosystem Experiments (NGEE) Arctic site near Barrow, Alaska. Included are i) weekly measurements of thaw depth, soil moisture, presence and depth of standing water, and soil temperature made during the 2012 and 2013 growing seasons (June - September) and ii) half-hourly measurements of soil temperature logged continuously during the period June...

NGEE Arctic HR1024i Canopy Spectral Reflectance, Drained Thaw Lake Basin, Barrow, Alaska, July 2015

Shawn Serbin
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 together with a Spectralon white plate to calibrate each measurement under variable illumination conditions during the measurement campaign. Data were collected in Barrow, Alaska during the 2015 period. Additional details can be found in the resulting publications. Also collected were TIR and digital images. See associated metadata record (NGEE...

Results of Experimental Additions of Organic Nitrogen on Soil Organic Matter Decomposition, Teller Road Site, Seward Peninsula, 2017 and 2018

Michael Philben, Jianqiu Zheng, Markus Bill, Jeff Heikoop, George Perkins, Ziming Yang, David Graham & Baohua Gu
This dataset provides the results of the experimental addition of glutamic acid on anaerobic organic matter decomposition as measured in the field and through laboratory methods. Field experiments were conducted during the summers of 2017 and 2018 at the NGEE Arctic Teller Road Site at mile marker 27 (TL_MM27) near Intensive Site 9 (TL_IS_9). At the field site, a solution of glutamate (13C- and 15N-labeled glutamate in 2017, unlabeled in 2018) was injected belowground and...

NGEE Arctic Plant Traits: Plant Biomass and Traits, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, beginning 2016

Verity Salmon, Colleen Iversen, Amy Breen, Holly Vander Stel & Joanne Childs
Data includes aboveground biomass and foliar traits measured at the Kougarok hill slope located at Kougarok Road, Mile Marker 64. Data collection began in July 2016.

NGEE Arctic Plant Traits: Vegetation Plot Locations, Ecotypes, and Photos, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, 2016

Colleen Iversen, Amy Breen, Verity Salmon, Holly Vander Stel & Stan Wullschleger
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 located at Kougarok Road, Mile Marker 64. Photographs of all intensive plots and reference points are also included.

NGEE Arctic Plant Traits: Soil Temperature and Moisture, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, beginning 2016

Colleen Iversen, Verity Salmon, Amy Breen, Holly Vander Stel & Stan Wullschleger
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 probes though the data also includes single point measurements from handheld devices. Data collection began in July 2016 and is ongoing.

In Situ Soil Moisture and Thaw Depth Measurements Coincident with Airborne SAR Data Collections, Barrow and Seward Peninsulas, Alaska, 2017

Cathy Wilson, Julian Dann, Robert Bolton, Lauren Charsley-Groffman, Elchin Jafarov, Dea Musa & Stan Wullschleger
The in-situ soil moisture and thaw depth measurements provided in this dataset were collected coincident with airborne overflights of L- and P-band SAR instruments at the NGEE Arctic study site near Barrow, on the North Slope, and at the three study sites on the Seward Peninsula, Alaska. Field measurements and flights were conducted during the summer of 2017 as a collaboration between the NASA ABoVE Project's Airborne SAR Campaign and the NGEE Arctic Project. ABoVE...

Synthesis of soil geochemical characteristics and organic carbon degradation in Arctic polygon tundra, Barrow, Alaska

Jianqiu Zheng, Taniya RoyChowdhury, Elizabeth Herndon, Ziming Yang, Baohua Gu, Stan Wullschleger & David Graham
This is a synthesis data product that reports (1) the results of soil geochemical characterization and (2) organic carbon degradation in low temperature soil incubations on cores collected on the NGEE Arctic Study Area near Utqiaġvik (Barrow), Alaska. The study area consists of thaw lakes, drained thaw lake basins and interstitial tundra with a polygonal landscape of microtopographic features created by ice wedges. Integrated geochemical and organic carbon degradation data from 9 individual soil cores...

Radiocarbon in CO2 and Soil Organic Matter from Laboratory Incubations, Barrow, Alaska, 2012

Lydia Vaughn & Margaret Torn
Dataset includes Delta14C measurements made from soil organic matter and CO2 from laboratory soil incubations of active layer soils collected in Barrow, Alaska in 2012. In addition to Delta14CO2, dataset CO2 production rates and carbon and nitrogen concentrations. Samples were collected from intensive study site 1 areas A, B, and C, and the site 0 and AB transects, from specified positions in high-centered, flat-centered, and low centered polygons.

Continuous Snow Depth, Intensive Site 1, Barrow, Alaska

Bob Busey, Vladimir Romanovsky, Larry Hinzman & William Cable
Continuous Snow depth data are being collected at several points within four intensive study areas in Barrow, Alaska. These data are being collected to better understand the energy dynamics above the active layer and permafrost. They complement in-situ snow and soil measurements at this location. The data could also be used as supporting measurements for other research and modeling activities.

NGEE Arctic Plant Traits: Soil Depth, Kougarok Road Mile Marker 64, Seward Peninsula, Alaska, Beginning 2016

Colleen Iversen, Amy Breen, Verity Salmon, Holly Stel & Stan Wullschleger
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 made at vegetation plots, intensive stations, and reference points. Three to four replicate measurements were made during the observation period and the presence of rocks was noted when possible.

Leaf Mass Area, Leaf Carbon and Nitrogen Content, Kougarok Road and Teller Road, Seward Peninsula, Alaska, 2016

Shawn Serbin, Alistair Rogers & Kim Ely
Carbon, Nitrogen and Leaf Mass Area of leaves sampled from locations on the Kougarok Rd (transect A) and Teller Rd NGEE Arctic study sites, Seward Peninsula, Alaska. Species include: Alnus viridis spp. fruticosa, Arctostaphylos rubra, Betula glandulosa, Chamerion latifolium, Petasites frigidus, Salix alaxensis, Salix glauca, Salix pulchra, Salix richardsonii and Vaccinium uliginosum.

Intensive Site 1 Vegetation Plot Photos, Barrow, Alaska, 2012

Victoria Sloan & Richard Norby
Photographs were taken on 24th June, 15th July and 17th August 2012, using a Canon Ixus 70 7.1 megapixel digital camera. Photographs were taken during the recording of weekly soil moisture, temperature and thaw depth measurements (Sloan et al., 2014), over a time period spanning approximately 6 hours on each day. Photographs were taken from positions where matted trail allowed access to vegetation plots.

MeshMaker: Configurable Meshing Framework for Eco-Hydrology Models

Nathan Collier & Jitendra Kumar
MeshMaker is a Python-based framework for generation of high quality structured and unstructured grid computational meshes for Eco-Hydrological models.

Inorganic Carbon Isotopes and Chemical Characterization of Watershed Drainages, Barrow, Alaska, 2013

Jeffrey Heikoop, Heather Throckmorton, Cathy Wilson & Brent Newman
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 (basins with polygonal terrain), different-aged drain thaw lake basins (young, medium, old, or ancient), or a combination of different aged basins. Samples taken in different drainage flow types at three different depths at each location in and around the Barrow Environmental Observatory.

Registration Year

  • 2013
    4
  • 2014
    13
  • 2015
    22
  • 2016
    17
  • 2017
    22
  • 2018
    26
  • 2019
    3

Resource Types

  • Dataset
    107

Data Centers

  • NGEE-Arctic (Next Generation Ecosystems Experiement)
    107