15,561 Works

Data from: Plant-O-Matic: A dynamic and mobile guide to all plants of the Americas

Gregory Goldsmith
Plant-O-Matic is a free iOS application serving as a mobile catalogue of all of the plants of the Americas developed using species distribution models estimated from field observations of plant occurrences. The underlying data comprise over 3.5 million standardized observations of over 88,000 plant species. This data is used for species distribution models and combined with the location services built into a mobile device to provide users with a list of all plant species expected...

Western scrub-jay water tube experiments, Los Angeles, CA USA 2014-2015

Corina Logan
Western scrub-jays are known for their highly discriminatory and flexible behaviors in a caching (food storing) context. However, it is unknown whether their cognitive abilities are restricted to a caching context. To explore this question, we tested scrub-jays in a non-caching context using the Aesop’s Fable paradigm, where a partially filled tube of water contains a floating food reward and objects must be inserted to displace the water and bring the food within reach. We...

Data from: Plant-O-Matic: A dynamic and mobile guide to all plants of the Americas

Gregory Goldsmith
Plant-O-Matic is a free iOS application serving as a mobile catalogue of all of the plants of the Americas developed using species distribution models estimated from field observations of plant occurrences. The underlying data comprise over 3.5 million standardized observations of over 88,000 plant species. This data is used for species distribution models and combined with the location services built into a mobile device to provide users with a list of all plant species expected...

Data from: Plant-O-Matic: A dynamic and mobile guide to all plants of the Americas

Gregory Goldsmith
Plant-O-Matic is a free iOS application serving as a mobile catalogue of all of the plants of the Americas developed using species distribution models estimated from field observations of plant occurrences. The underlying data comprise over 3.5 million standardized observations of over 88,000 plant species. This data is used for species distribution models and combined with the location services built into a mobile device to provide users with a list of all plant species expected...

Lidar and RDMs for 5 logging concessions in East Kalimantan, Indonesia

The Nature Conservancy & Peter Ellis
5,620 ha of medium-density discrete-return lidar data collected in 6 cutting blocks of 5 logging concessions in East Kalimantan, Indonesia. Data was collected by Credent Teknologi (Jakarta Indonesia) in April 2013, within 26 months of closure of logging operations, at an average pulse density of 4.5 m-2, with 40% swath overlap, scanner angle <20 degrees, and standard flying height of 650 m above ground level. Data package includes LAS point-cloud files with ground points classified...

Data from: Plant-O-Matic: A dynamic and mobile guide to all plants of the Americas

Paul Scherrer Institute & Gregory Goldsmith
Plant-O-Matic is a free iOS application serving as a mobile catalogue of all of the plants of the Americas developed using species distribution models estimated from field observations of plant occurrences. The underlying data comprise over 3.5 million standardized observations of over 88,000 plant species. This data is used for species distribution models and combined with the location services built into a mobile device to provide users with a list of all plant species expected...

Data from: Plant-O-Matic: A dynamic and mobile guide to all plants of the Americas

Gregory Goldsmith
Plant-O-Matic is a free iOS application serving as a mobile catalogue of all of the plants of the Americas developed using species distribution models estimated from field observations of plant occurrences. The underlying data comprise over 3.5 million standardized observations of over 88,000 plant species. This data is used for species distribution models and combined with the location services built into a mobile device to provide users with a list of all plant species expected...

California Drought Assessment

Rocky Mountain Research Station & Sparkle Malone
Drought is a global issue that is exacerbated by climate change and increasing anthropogenic water demands. The recent occurrence of drought in California provides an important opportunity to examine drought response across ecosystem classes (forests, shrublands, grasslands, and wetlands), which is essential to understand how climate influences ecosystem structure and function. We quantified ecosystem resilience to drought by comparing changes in satellite derived estimates of water use efficiency (WUE = net primary productivity (NPP)/ evapotranspiration...

Soil Survey along the Dempster Highway, Yukon Territory, Canada, Version 1.0

J. Kimble
Soil survey information from plots along the Dempster Highway in Yukon Territory, Canada, includes soil consistency, soil texture, soil moisture, pedon information, flooding information (frequency and duration), erosion, runoff, soil temperature, precipitation, bedrock, major land resource areas, horizon data (thickness, soil pores, rock fragments, roots, soil surface feature, effervescence), mineralogy, and oxalate data elements collected in the field and the lab. An attached SAS program is included with each data file for importing data to...

ArcticRIMS: SSM/I Freeze Thaw 5-day Composites, Version 1.0

C. Vorosmarty, R. Lammers & T. Zhang
5-day composites of Special Sensor Microwave/Imager (SSM/I) Freeze Thaw data. The data is presented in 24 sub-datasets of different spatial and temporal aggregations.

Bowhead Whale Subsistence Sensitivity Mapping, Version 1.0

J. George
This data set contains bowhead whale subsistence data and mapping, gathered from 01 January 2003 through 31 December 2003. These data are part of the Barrow Area Spatial Data Infrastructure effort. The Bowhead Whale Subsistence Sensitivity mapping project includes GIS data on migration routes, seasonal ranges, hunting and search areas, and other areas highly sensitive to seasonal disturbance. The data and associated map are intended to be used as a guide in the planning and...

SHEBA Composite Data Observations, Version 1.0

O. Persson
This data set contains the hourly values of 31 parameters that are a combination of observations from the Atmospheric Surface Flux Group (ASFG) SHEBA site and from other SHEBA sites (Quebec 2, Pittsburgh, and Mainline). Data were collected from 9 October 1997 through 8 October 1998. Data are provided in both Matlab file and ASCII file format, with two data files for each file format. Please see the documentation for a list of parameters and...

Thickness, Salinity and Stable Isotope Composition of Sea Ice Samples from the Laptev Sea, 1999, Version 1.0

H. Eicken & A. Proshutinsky
This data set consists of sea ice measurements including thickness, salinity, and stable isotope composition from the Laptev Sea. The data were obtained during the Transdrift VI expedition to the Laptev Sea in April and May of 1999 as part of a project supported through the National Science Foundation (NSF) Arctic System Science (ARCSS) Program. Sea ice cores were obtained with a 10 cm diameter corer. Ice thickness was measured in centimeters at the site...

North American Tundra NEE modeled from MODIS data, Version 1.0

S. Goetz & M. Loranty
This data set provides growing season Net Ecosystem CO2 exchange (NEE) between tundra ecosystems and the atmosphere for North America. Data are produced over the growing season (Julian Day 177 - 241) for the years 2003 - 2005. The data are modeled following the approach of Loranty et al [2011], using Moderate Resolution Imaging Spectroradiometer (MODIS) observation. These preliminary data have been validated for only one site at Daring Lake, Canada. Data for each year...

Barrow Area Remote Sensing - Tramlines, Version 1.0

C. Tweedie
This data set contains data from tramlines constructed at the Barrow Biocomplexity Experiment 2006. Data were derived using the Barrow Arctic Science Consortium Differential GPS System (BASC DGPS) and exported as GIS shape files. These shape files are contained in a single ZIP file.

Humans and Hydrology at High Latitudes: Community Information, Version 1.0

D. White & L. Alessa
This data set contains detailed community information for regions of Canada and Alaska. These data are utilized in the Arctic Rapid Integrated Monitoring System (ArcticRIMS) project to improve the development of the water stress model. This water stress model shows the effects of water resources, humans and climate change in the Arctic. Recent studies suggest that climate change will have a significant impact on Arctic hydrology. However, it is currently unknown which regions of the...

History of the Arctic Flora in North America, Version 1.0

E. DeChaine & C. Davis
This dataset in an attempt to increase understanding of how climate cycles of the Quaternary (the last 2.6 million years) impacted divergence in Arctic and alpine tundra flora. Specimens were collected in Beringia and the mountains of western North America, focusing on populations existing within (western and eastern Beringia, and the Pacific Northwest and Rocky Mountains, respectively), as well as sites between those refugia. Briefly, DNA was sequenced from chloroplast and nuclear loci for multiple...

SNACS: Environmental Variability, Bowhead Whale Distributions, and Inupiat Subsistence Whaling - biological data, Version 1.0

C. Ashjian
This data set contains mesozooplankton abundance from net tows conducted during the Study of the Northern Alaska Coastal System (SNACS) cruises, August - September 2005 and 2006 in the Chukchi and Beaufort Seas, off the coast of Barrow, Alaska. Each data set presents abundances of all taxa, including copepodite stages for the copepods, as # per m-3 and includes station number, date, position (latitude, longitude), and depth for each tow.

ArcticRIMS: NCEP Reanalysis Precipitation, Aggregated by Administrative Regions, Version 1.0

R. Lammers & D. Bromwich
This dataset contains NCEP Reanalysis Precipitation Data, Aggregated by Administrative Regions. Gridded daily time step data from Ohio State University based on National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, interpolated from the NCEP/NCAR grids (~209km) to the 25km Northern Hemisphere Equal-Area Scalable Earth Grid (EASE-Grid) using a bi-lagrange interpolation formula. As part of the data processing of Arctic Rapid Integrated Monitoring System (ArcticRIMS) based at the Water Systems Analysis Group...

Intersection of Climate Change, Water Resources and Humans in the Arctic, Version 1.0

D. White
This data set contains two spreadsheets. One contains data consisting of conductivity and temperature at sites on the Seward Peninsula. The other contains records of E. coli and coliform in wells in the same area.

ArcticRIMS: NCEP Reanalysis LongWaveDown Radiation, Aggregated by Administrative Regions, Version 1.0

R. Lammers & D. Bromwich
This dataset contains NCEP Reanalysis LongWaveDown Radiation Data, Aggregated by Administrative Regions. Gridded daily time step data from Ohio State University based on National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, interpolated from the NCEP/NCAR grids (~209km) to the 25km Northern Hemisphere Equal-Area Scalable Earth Grid (EASE-Grid) using a bi-lagrange interpolation formula. As part of the data processing of Arctic Rapid Integrated Monitoring System (ArcticRIMS) based at the Water Systems Analysis...

Landscape Age of the Arctic, Version 1.0

M. Raynolds, J. Comiso & D. Walker
This data set is of landscape age of the Arctic, in 1000 years since the land surface was available for vegetation colonization. It is in vector format. The age of most recent deglaciation, emergence from the sea, or drainage of proglacial lakes was obtained from a compilation of Quaternary glaciations, available in digital format (Ehlers and Gibbard, 2004). Supplemental data provided in some of the regional chapters were especially useful. Although landscape age estimates are...

SNACS: Environmental Variability, Bowhead Whale Distributions, and Inupiat Subsistence Whaling - microzooplankton, Version 1.0

E. Sherr & Y. Spitz
This data set includes microplankton abundance and estimated carbon biomass from Niskin bottle casts taken on board the R/V Annika Marie during August - September 2005 and 2006 in the Chukchi and Beaufort Seas, off the coast of Barrow, Alaska. Each data set presents station, transect or line, water sample depth, chlorophyll a concentration and percent of chlorophyll less than 10 um in size, microzooplankton-sized protists (20-200 um, ciliates and heterotrophic dinoflagellates), cells counted per...

CFL 2008 Dissolved Organic Matter Concentration (DOC) and Compositions, Version 1.0

R. Benner
This dataset contains dissolved organic carbon (DOC) measurements acquired by processing water samples gathered from the eastern Beaufort Sea and Amundsen Gulf. Samples were collected during the Circumpolar Flaw Lead (CFL) Program aboard the Amundsen icebreaker from 18 July 2009 through 06 August 2009. Data from water samples include dissolved organic carbon, dissolved nitrogen, hydrolyzable amino acids, and dissolved lignin phenols. Data are available in Excel file format.

ArcticRIMS: Daily Thaw Depth And Frozen Ground Depth, Aggregated by Administrative Regions, Version 1.0

R. Lammers, M. Serreze & C. Oelke
Daily thaw depth and frozen ground depth are calculated using a frozen ground model. Oelke et al. [2003] provide details. The data are presented in 24 sub-datasets of different spatial and temporal aggregations.

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