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128 results found Displaying entries 81 - 100 of 128 in total

Happy Valley Patterned-Ground 10 x 10 m Grids

Aga happy valley hillcrest vegetation 2006 The Happy Valley patterned-ground grids are located in Subzone E, the warmest part of the Arctic, in the foothills of the Brooks Range, just west of the Sagavanirktok River and the Dalton Highway. There are three 10 x 10-m grids along a hill slope, one on the crest of the hill (dry), one on the mid-slope (mesic), and one on the toe slope (wet). All three have tussock-sedge, erect dwarf-shrub,...
Unknown
2018-09-18 17:27:06 -0800
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Howe Island Patterned-Ground 10 x 10 m Grids

The Howe Island biocomplexity grid is located on a 1.5 x 0.5 km island off the delta of the Sagavanirktok River, west of the Endicott Causeway in the Prudhoe Bay oilfield, AK. There is one 10 x 10 m grid, with a complex of vegetation types created by 10 to 30-m polygonal cracking due to permafrost ice-wedges, smaller 1 to 3-m non-sorted circles, and small 10-20 cm surficial desiccation...
Complete
2018-08-09 15:17:09 -0800
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Imnavait Creek Area (Walker & Maier 2008)

Walker%26maier 2008 side 2 The Imnavait Creek vegetation area is located near the center of the Upper Kuparuk River region, east of Toolik Lake. It encloses a 20-km^2 area south of the Dalton Highway that includes both Imnavait Creek and the Toolik River in the center and stretches from the Kuparuk River on the west to the headwaters of Oksrukuyik Creek on the east. It includes the experimental areas around Imnavait...
Complete
2018-08-09 15:17:10 -0800
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Ivotuk Vegetation Maps (Reidel et al. 2005)

The Ivotuk study site is located in northwestern Alaska, on the North Slope of the Brooks Mountains Range. The study site was chosen because four tundra vegetation types, moist acidic tundra (MAT), moist nonacidic tundra (MNT), mossy tussock tundra, and shrub tundra exist within a 2 km<sup>2</sup> area. This project was funded by the NSF Arctic System Sciences, Land-Atmosphere-Ice Interactions...
Unknown
1999-01-01
2005-12-31
2018-10-11 14:02:55 -0800
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Kuparuk River Basin Elevation Map

Ku topo u6 Kuparuk River Basin elevation (m) is a grid map (tif) with 30-m pixels. Data are taken from the GTOPO30 global digital elevation model (DEM) (Gesch et al. 1999) and are at approximately 1 km spacing. Back to <a href="/catalog/entries/5450-kuparuk-river-basin-vegetation-map-walker-1997">Kuparuk River Basin</a> <h4>References</h4> Gesch, D.B., Verdin, K.L., and Greenlee, S.K., 1999, New...
Complete
2018-10-11 19:17:49 -0800
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Kuparuk River Basin Hydrology Map

Ku hydro Hydrology of the Kuparuk River basin, including streams, rivers, ponds, lakes, and coastline. The map includes line features as well as polygon features (.shp). This map was drawn by Skip Walker, derived by interpreting the CIR version of the GTOPO30 Landsat MSS image created in 1999 by Jiong Jia. Back to <a href="/catalog/entries/5450-kuparuk-river-basin-vegetation-map-walker-1997">Kuparuk...
Complete
2018-10-11 19:26:39 -0800
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Kuparuk River Basin Landsat CIR Image

Ku cir u6 Kuparuk River Basin False Color-Infrared (CIR) image - Registered and rectified CIR image created in ENVI from the MSS image. It is a raster map (tiff), with 30-m pixel resolution. Back to <a href="/catalog/entries/5450-kuparuk-river-basin-vegetation-map-walker-1997">Kuparuk River Basin</a>
Complete
2018-10-11 15:38:46 -0800
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Kuparuk River Basin Landscape Units Map

Aga kuparuk basin landscape walker 2009 Generalized landscape units for Kuparuk River basin. Polygon coverage of landscape units for the Kuparuk River watershed with seven units. This map was drawn by Skip Walker, derived by interpreting the CIR version of the GTOPO30 Landsat MSS image created in 1999 by Jiong Jia. Back to <a href="/catalog/entries/5450-kuparuk-river-basin-vegetation-map-walker-1997">Kuparuk River Basin</a>
Complete
2018-10-11 19:14:13 -0800
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Kuparuk River Basin Vegetation Map (Walker 1997)

Aga kuparuk basin vegetation walker 2003 The vegetation of the Kuparuk River watershed was mapped for several US National Science Foundation projects, including the Arctic System Science Flux Study and the Long-Term Ecological Research program (Muller et al. 1998). The Kuparuk Basin map is a raster (tif) map, with 50-m pixels, and 8 land cover categories. The boundaries of the map form a rectangle that encompasses the entire...
Complete
2018-10-11 19:31:14 -0800
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Land cover map of the Arctic National Wildlife Refuge (Walker et al. 1982)

Anwr crrel 82 37 The Landsat-assisted environmental mapping of the northern coastal plain of the Arctic National Wildlife Refuge, Alaska was funded by the US Fish and Wildlife Service and the US Geological Survey and published by the Cold Regions Research and Experimental Laboratory (CRREL) as input to the Environmental Impact Statement required under Section 1002 of the Alaska National Interest Land...
Complete
1982-11-01
2018-09-25 20:40:47 -0800
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Landsat Land Cover Map of Northern Alaska (Muller et al. 1999)

Aga northslope landcover muller 1999 This map was created for the US National Science Foundation Land-Atmosphere-Ice Interactions (LAII) Flux Study and the Arctic Transitions in the Land-Atmosphere System (ATLAS) Study (OPP-9318530 and OPP-9415554). The map covers all of northern Alaska, from the Brooks Range divide to the coast. It is a raster (tif) map, with 50 m pixels, and 9 land cover categories. It is based on an...
Complete
1998-06-01
2018-08-09 15:11:50 -0800
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Landsat MSS-derived land-cover map of the Seward Peninsula, Alaska

Aga seward landcover thayer snyder 2000 This land cover map of the Seward Peninsula is based on a classification of Multi-Spectral Scanner (MSS) data. The Landsat multiple scene mosaic was furnished by the USGS, EROS Data Center, and an Isoclass clustering algorithm used to arrive at 10 broad land-cover classes. References: Raynolds, M.K., Martin, C.R., Walker, D.A., Moody, A., Wirth, D., Thayer-Snyder, C. 2002. ATLAS...
Complete
2018-08-09 15:11:57 -0800
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NSSI Landcover GIS Data: Landcover Mapping for North Slope of Alaska

Nslandcover Data is provided as raster GIS layer in .img format. The project final report is included in the full data download or can be downloaded separately. This map is the outcome of a multi-year project to produce a moderate resolution landcover base map for the North Slope of Alaska to serve as a primary base layer for long-term science and planning activities on the North Slope. New Landsat...
Complete
2018-08-09 15:17:19 -0800
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Patterned-Ground 10 x 10 m Grids (Raynolds et al. 2005)

This mapping includes six locations along the Dalton Highway and in the Prudhoe Bay Oilfield area, forming a north-south transect across the climate gradient on the North Slope of Alaska. From south to north, the locations are Happy Valley, Sagwon, Franklin Bluffs, Deadhorse, West Dock, and Howe Island. At each location, 10 x 10 m grids were mapped to characterize the heterogeneity of...
Complete
2018-09-11 15:37:17 -0800
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Prudhoe Bay 1949 BAR Photography WMS

Prudhoe bay 1949 wms WMS feed for 1949 BAR photography mosaic for the Prudhoe Bay region. Raw data is available on request, contact GINA at: support@gina.alaska.edu, with data request.
Complete
2018-08-09 15:11:47 -0800
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Prudhoe Bay Cumulative Impact Map A: Raynolds 2014

Aga prudhoe a human disturbance 2010 Map A of the historical infrastructure changes for the Prudhoe Bay Oilfield for 10 dates from the initial oil discovery in 1968–2011. Aerial photos taken in 1949 and 1968 were used to define the geobotanical characteristics prior to development. Infrastructure changes were digitized from each successive analysis year (1970, 1972, 1973, 1977, 1979, 1983, 1990, 2001, and 2010). Polygon fields...
Complete
2018-08-09 15:11:53 -0800
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Prudhoe Bay Cumulative Impact Map B: Raynolds 2014

Aga prudhoe geobotancal 2014 Map B of the historical infrastructure changes for the Prudhoe Bay Oilfield for 10 dates from the initial oil discovery in 1968–2011. Aerial photos taken in 1949 and 1968 were used to define the geobotanical characteristics prior to development. Infrastructure changes were digitized from each successive analysis year (1970, 1972, 1973, 1977, 1979, 1983, 1990, 2001, and 2010). Polygon fields...
Complete
2018-02-22 11:55:14 -0900
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Prudhoe Bay Cumulative Impact Map C: Raynolds 2014

Aga prudhoe geobotancal 2014 Map C of the historical infrastructure changes for the Prudhoe Bay Oilfield for 10 dates from the initial oil discovery in 1968–2011. Aerial photos taken in 1949 and 1968 were used to define the geobotanical characteristics prior to development. Infrastructure changes were digitized from each successive analysis year (1970, 1972, 1973, 1977, 1979, 1983, 1990, 2001, and 2010). Polygon fields...
Complete
2018-02-22 11:55:10 -0900
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Sagwon Patterned-Ground 10 x 10 m Grids

Aga sagwon acidic vegetation 2006 The Sagwon patterned-ground grids are located at the northern edge of the rolling foothills, at the boundary with the flatter coastal plain. This is also the boundary between Subzones E and D, and between the acidic tundra to the south and the nonacidic tundra to the north. There are three 10 x 10 m grids, one with acidic tussock-sedge, erect dwarf-shrub, moss vegetation (MAT), and two grids in...
Ongoing
2018-09-18 17:26:05 -0800
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Seward Peninsula Range Mapping (Swanson et al. 1985)

Aga seward vegetation swanson 1985 In 1976, the Northwest Alaska Native Association (NANA) and the Reindeer Herders Association (RHA) asked the Alaska Soil and Water Conservation District and the United States Department of Agriculture Soil Conservation Service (SCS) for assistance in developing and applying range management plans for reindeer. In response the SCS carried out a 15 million acre survey of 19 reindeer grazing...
Complete
2018-08-09 15:17:09 -0800
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