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3035 Titles Match Your Query
Showing 1 through 50 of 3035 Next
1. BOREAS RSS-08 BIOME-BGC Model Simulations at Tower Flux Sites in 1994 [doi:10.3334/ORNLDAAC/295_1]
BIOME-BGC is a general ecosystem process model designed to simulate biogeochemical and hydrologic processes across multiple scales. BIOME-BGC is used to estimate daily water and carbon budgets for ...


2. BOREAS RSS-08 BIOME-BGC SSA Simulations of Annual Water and Carbon Fluxes [doi:10.3334/ORNLDAAC/296_1]
Derived maps of landcover type and crown and stem biomass as model inputs to determine annual evapotranspiration, gross primary production, autotrophic respiration and net primary productivity within ...


3. BOREAS TE-06 NPP for the Tower Flux, Carbon Evaluation, and Auxiliary Sites [doi:10.3334/ORNLDAAC/200_1]
Contains Net primary production data gathered by the TE-06 group in the NSA and SSA.


4. CARVE Modeled Gross Ecosystem CO2 Exchange and Respiration, Alaska, 2012-2014 [doi:10.3334/ORNLDAAC/1314_1]
This data set provides 3-hourly estimates of gross ecosystem CO2 exchange (GEE) and respiration (autotrophic and heterotrophic) for the state of Alaska from 2012 to 2014. The data were generated using ...


5. Canopy Photosynthesis Rates (FIFE) [doi:10.3334/ORNLDAAC/27_1]
Canopy photosynthesis rates and resistance chamber measurements during FIFE


6. Leaf Photosynthesis Rates (FIFE) [doi:10.3334/ORNLDAAC/46_1]
Measurements of leaf photosynthesis rates measured with Li-Cor LI-6200


7. Mowing Experiment Biophys. Data (FIFE) [doi:10.3334/ORNLDAAC/55_1]
Plant biomass data where grazing height or frequency were simulated by mowing


8. Partners in Flight Landbird Population Estimates (2004) Database [PIF_landbirdbase]
The population size estimates in this database correspond to those presented in the Partners in Flight North American Landbird Conservation Plan (Rich et al. 2004) and The Association of Fish and ...


9. Plant Biomass/Production/Consump. (FIFE) [doi:10.3334/ORNLDAAC/69_1]
Estimates of plant standing crop, plant productions & consumption by herbivores


10. Soil CO2 Flux Data (FIFE) [doi:10.3334/ORNLDAAC/105_1]
Soil surface CO2 flux data collected by John Norman


11. Soil Gas Fluxes Using Soil Cores (FIFE) [doi:10.3334/ORNLDAAC/106_1]
Nitrous oxide flux and CO2 from soil respiration measured using soil cores


12. Standing Crop & Nitrogen Content (FIFE) [doi:10.3334/ORNLDAAC/118_1]
Biomass weight & nitrogen content for plants collected along transects & dried


13. Triactinomyxons (TAMs) release by Tubificids Collected from the Madison River (Montana) [MSU_17]
Oligochaetes were collected from six side channels of the Madison River (Montana) and observed for TAM release. This dataset shows the number of the tubificids with morphology similar to T. tubifex ...


14. Vegetation Biophysical Data (FIFE) [doi:10.3334/ORNLDAAC/135_1]
Measurements of leaf area index and biomass of different canopy components


15. 1986-1988 Plot-Transect Installation - Roan Mountain Massif Content Management [NBII_SAIN2]
This data set contains information on a set of transects and plots that were originally installed in 1987 and 1988 on the grassy balds of the Roan Mountain Massif (Round Bald, Engine Gap, Jane Bald, ...


16. 1996-Plot-Transect -Relocation - Roan Mountain Massif Data Management Project [NBII_SAIN1]
This data set represents efforts to relocate a set of transects and plots that were originally installed in 1987 and 1988 on the grassy balds complex of the Roan Mountain Massif [Round Bald, Engine ...


17. Coastal Natural Community Systems [MassGIS_GISDATA.VCCOASTAL_POLY]
The Coastal Natural Community Systems extend from the ocean to the inland limits of tidal influence and salt spray. Community types include dunes, beaches, salt marshes, tidal flats, undeveloped barrier ...


18. Water quality measurements in the Lostine River, Oregon [MSU_6]
Water quality measurements were taken in the Lostine River (OR) in 1998 and 1999. Temperature, pH, total dissolved solids and conductivity values increased with decreasing river mile in both years, ...


19. ABoVE: Study Domain and Standard Reference Grids [doi:10.3334/ORNLDAAC/1367_1]
The Arctic - Boreal Vulnerability Experiment (ABoVE) has developed two standardized spatial data products to expedite coordination of research activities and to facilitate data interoperability. First, ...


20. Integrated Ecological Investigation of McMurdo Dry Valley's Active Soil Microbial Communities [NSF-ANT11-42096]
The McMurdo Dry Valleys in Antarctica are among the coldest, driest habitats on the planet. Previous research has documented the presence of surprisingly diverse microbial communities in the soils ...


21. CARVE: L1 In-situ Carbon and CH4 Flux and Meteorology at EC Towers, Alaska, 2011-2015 [doi:10.3334/ORNLDAAC/1424_1]
This data set provides ground in situ flux and meteorological science data from fixed instruments at three eddy covariance tower sites located in the Alaskan Arctic tundra. Real and gap-filled observations ...


22. NMFS Reef Survey Forms [gov.noaa.ncdc.C01027]
The Reef Environmental Survey Project (REEF) mission to educate and enlist divers in the conservation of marine habitats is accomplished primarily through its Fish Survey Project. The Project was ...


23. ABoVE: Burn Severity, Fire Progression, Landcover and Field Data, NWT, Canada, 2014 [doi:10.3334/ORNLDAAC/1307_1]
This data set provides peatland landcover classification maps, fire progression maps, and vegetation community biophysical data collected from areas that were burned by wildfire in 2014 in the Northwest ...


24. AirMOSS: L4 Daily Modeled Net Ecosystem Exchange (NEE), AirMOSS sites, 2012-2014 [doi:10.3334/ORNLDAAC/1422_1]
This data set provides Level 4 daily estimates of Net Ecosystem Exchange (NEE) of CO2 at a spatial resolution of 30 arc-seconds (~1 km) for seven of the sites covered by the Airborne Microwave Observatory ...


25. AirMOSS: L4 Modeled Net Ecosystem Exchange (NEE), Continental USA, 2012-2014 [doi:10.3334/ORNLDAAC/1423_1]
This data set provides Level 4 estimates of Net Ecosystem Exchange (NEE) of CO2 across the conterminous USA at a spatial resolution of 50 km. Modeled estimates are provided at hourly and monthly temporal ...


26. Annual wildland fire emissions (WFEIS v0.5) for Conterminous US and Alaska, 2001-2013 [doi:10.3334/ORNLDAAC/1306_1]
This data set contains annual modeled estimates of wildland fire emissions at 0.01 degree (~1-km) spatial resolution from the Wildland Fire Emissions Information System (WFEIS v0.5) for the conterminous ...


27. CARVE: Alaskan Fire Emissions Database (AKFED), 2001-2013 [doi:10.3334/ORNLDAAC/1282_1]
This data set provides estimates of annual carbon emissions (kg carbon per square meter) from boreal fires at 450-m resolution for the state of Alaska between 2001 and 2013. To produce these data, ...


28. CMS: Aboveground Biomass from Penobscot Experimental Forest, Maine, 2012 [doi:10.3334/ORNLDAAC/1318_1]
This data set includes estimates of aboveground biomass (AGB) in 2012 from the Penobscot Experimental Forest (PEF) in Bradley, Maine. The AGB was modeled using LiDAR data gathered with the LiDAR Hyperspectral ...


29. CMS: Carbon Fluxes from Global Agricultural Production and Consumption, 2005-2011 [doi:10.3334/ORNLDAAC/1279_1]
This data set provides global estimates of carbon fluxes associate with annual crop net primary production (NPP) and harvested biomass, annual uptake and release by humans and livestock, and the total ...


30. CMS: Forest Biomass and Productivity, 1-degree and 5-km, Conterminous US, 2005 [doi:10.3334/ORNLDAAC/1221_1]
Notice: This data set and guide were updated on June 30, 2014 to correct an error in the reported units. The data values were not changed.Spatially-gridded estimates of above ground biomass (AGB), ...


31. CMS: Modeled Net Ecosystem Exchange at 3-hourly Time Steps, 2004-2010 [doi:10.3334/ORNLDAAC/1315_1]
This data set provides global, gridded, model-derived net ecosystem exchange (NEE) of CO2 flux between the land and atmosphere at 3-hourly time steps over seven years (2004-2010) at three different ...


32. Climate Change Science Program Collection [gov.noaa.ncdc.C01200]
The Climate Change Science Program (CCSP) Collection consists of publications and other resources produced between 2007 and 2009 by the CCSP with the intention of providing sound climate science for ...


33. Leaf Photosynthetic Parameters, Vcmax and Jmax, Barrow, Alaska, 2012-2016 [Leaf_Photosynthetic_Parameters_Vcmax_Jmax_Barrow_Alaska_2012-2016]
Photosynthetic parameters Vcmax and Jmax estimated from CO2 response curves and from light saturated photosynthesis using the one point method. Data were collected in Barrow 2012-2016 on 7 species.


34. State of the Climate Monthly Overview - National Wildfires [gov.noaa.ncdc.C00774]
The State of the Climate is a collection of periodic summaries recapping climate-related occurrences on both a global and national scale. The State of the Climate Monthly Overview-National Wildfires ...


35. A vegetation assessment of Beaufort Island [K024_1996_1997_NZ_3]
The vegetation at Beaufort Island was assessed and a report written to ICAIR including a description of the area, species present, comparison to other Dry Valley vegetation, the merits of the vegetation ...


36. Analysis of the effects of environmental factors (temperature, light, water content and CO2 concentration) on the photosynthesis activity of two common Antarctic mosses and a cyanobacterial mat in the Taylor Valley [K024_2002_2003_NZ_2]
A detailed study of how the environmental factors temperature, light, water content and carbon dioxide concentration affected photosynthesis of the two common mosses Bryum argenteum and Hennediella ...


37. Analysis of the endolithic communities in the McMurdo Dry Valleys: microclimate, biodiversity, community structure, biomass, photosynthetic activity and genetic diversity [K024_2003_2008_NZ_1]
The photosynthetic activity of endolithic communities at three sites in the Ross Sea Region, including Mt Falconer in the Taylor Valley, Linnaeus Terrace in the Asgard Range, the Nussbaumriegel in ...


38. Chlorophyll a fluorescence and temperature measurements from lichen and mosses buried under snow at Botany Bay, Granite Harbour [K024_1999_2000_NZ_2]
Fluorescence (chlorophyll a fluorescence) activity measurements were recorded for selected plants for about three weeks to determine if the photosystems of lichen or mosses are active in differing ...


39. Collembolids (Gomphiocephalus hodgsoni) and mite (Stereotydius mollis) samples and surveys of the lower Taylor Valley for phylogenetic relationship studies [K024_2002_2003_NZ_1]
Both collembolids (Gomphiocephalus hodgsoni) and mites (Stereotydius mollis) were surveyed over the entire floor of the lower Taylor Valley with special attention paid to the stream areas and to wet ...


40. Comparative studies of vegetation surveys, maps, species lists and lichen growth rates of the Cape Hallett region (Seebee Hook, Willett Cove and the scree slopes surrounding them) with a 1968 study [K024_1998_1999_NZ_1]
The first botanical work at Cape Hallett was carried out when Hallett Station existed in the early to late 1960s. These studies were used for comparative purposes of vegetation cover and lichen growth ...


41. Comparison of the photosynthetic performance of Umbilicaria species in the Ross Sea region [K024_2002_2003_NZ_3]
The photosynthetic performance of Umbilicaria species was measured under standard conditions in the laboratory and compared with Umbilicaria species from the Taylor Valley and Mt Kyffin.


42. Estimates of growth rates of lichen from photographs of lichen thalli on the Mt Falconer summit and ridge and the Rhone Bench (above Lake Bonney), Taylor Valley [K024_1980_2008_NZ_1]
A small number of lichen thalli on Mt Falconer summit and ridge and the Rhone Bench (above Lake Bonney) were marked and photographed during the 80-81 field season. These plants were refound over subsequent ...


43. Examination of the photosynthetic behaviour (energy content, nutrient content, productivity and acclimation) of mosses and lichens throughout the summer season at Cape Hallett [K024_2004_2006_NZ_2]
A possible sign of climate change is likely to be improved production and growth in plants. The response of net photosynthetic rates were measured on the large areas of relatively uniform moss cover ...


44. Experimental measurements of the effects of the environmental factors (temperature, light, water content and carbon dioxide concentration) on the photosynthesis activity of Antarctic mosses and lichens at Cape Hallett [K024_1998_1999_NZ_2]
A detailed study of how the environmental factors temperature, light, water content and carbon dioxide concentration affected photosynthesis of the two common mosses Bryum argenteum and B. pseudotriquetrum ...


45. Measurements of climate data and the effect of high light and low temperature on the photosynthetic response (photosynthetic gas exchange rates and fluorescence) of mosses and lichens at Granite Harbour [K024_1994_1995_NZ_1]
The winter snowfall (during 1994) was unusually large and the area of Botany Bay was uniformly covered to a depth of 50 to 70cm. Furthermore, air temperatures were low being rarely above -6 C. These ...


46. Measurements of lichen activity (chlorophyll a fluorescence) for an entire year from Botany Bay, Granite Harbour [K024_1999_2000_NZ_3]
A system was established at the back of Botany bay to monitor chlorophyll a fluorescence from a thallus of Umbilicaria aprina continuously through the winter and the next season (lichen activity through ...


47. Measurements of photosynthetic recovery after the winter cold and desiccation at Botany Bay, Granite Harbour [K024_2000_2001_NZ_1]
Three CMS400 photosynthesis systems were used to study the recovery of photosynthetic activity by lichens and mosses rewetted for the first time after the winter at Botany Bay, Granite Harbour.


48. Microfauna surveys of the vegetation of the Fryxell Stream flush area, Taylor Valley [K024_1989_1990_NZ_2]
Mosses were sampled from the Canada Glacier flush area, Taylor Valley, for included animals (major groups of microfauna in Antarctica are the protozoa, nematoda, tardigrada and rotifers) to attempt ...


49. Nutrient transfer from penguin colonies to the vegetation at Cape Hallett: A measurement of the transfer of organic nitrogen in the form of ammonia [K024_2004_2006_NZ_3]
The transfer of nutrients from marine to terrestrial ecosystems are though to be important for vegetation. The transfer rate of organic nitrogen in the form of ammonia from the penguin colonies to ...


50. Photosynthesis, fluorescence and microclimate measurements of several species of mosses and lichens from Botany Bay at Granite Harbour [K024_1991_1992_NZ_1]
The photosynthetic rate of Antarctic mosses and lichens was studied with investigations into the effects of high levels of light radiation and of possible UV effects. The mosses Pottia heimii, Bryum ...


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