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Vegetation and land-cover changes are not always directional but follow complex trajectories over space and time, driven by changing anthropogenic and abiotic conditions. We present a multi-observational approach to land-change analysis that addresses the complex geographic and temporal variability of vegetation changes related to climate and land use. Using land-ownership data as a proxy for land-use practices, multitemporal land-cover maps, and repeat photography dating to the late 19th century, we examine changing spatial and temporal distributions of two vegetation types with high conservation value in the southwestern United States: grasslands and riparian vegetation. In contrast to many reported vegetation...
Future changes in the number of dry days per year can either reinforce or counteract projected increases in daily precipitation intensity as the climate warms. We analyze climate model projected changes in the number of dry days using 28 coupled global climate models from the Coupled Model Intercomparison Project, version 5 (CMIP5). We find that the Mediterranean Sea region, parts of Central and South America, and western Indonesia could experience up to 30 more dry days per year by the end of this century. We illustrate how changes in the number of dry days and the precipitation intensity on precipitating days combine to produce changes in annual precipitation, and show that over much of the subtropics the change...
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Grasslands comprise a small part of the Chihuahuan Desert but are vital to the biological diversity of the ecoregion. Characteristic grasses of the Chihuahuan Desert are tobosa (Pleuraphis mutica) and black grama (Bouteloua eriopoda) but other common species include alakali sacaton (Sporobolus airoides), big alkali sacaton (S. wrightii), mesa dropseed (S. flexuosus), blue grama (B. gracilis), sideoats grama (B. curtipendula ), hairy grama (B. hirsuta), slender grama (B. filiformis), chino grama (B. brevista), spruce top grama (B. chondrosioides), bush muhly (Muhlenbergia porteri), several three awns (Aristida spp.), and fluff grass (Dasyochloa pulchela) (Johnson 1974, Dinerstein et al. 2000). Many of the sites discussed...
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This dataset represents the soil order from SSURGO and STATSGO soil descriptions for soil map units in the state of southern Alaska (b) that lie within the North Pacific Landscape Conservation Cooperative.
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Modal vegetation class over 1986 – 2005, simulated with MC1 (Lenihan et al. 2008) and a 10 km x 10 km grid cell size. Grid Value: Vegetation Type 1: ALPINE 2: SUBALPINE FOREST 3: COAST EVERGREEN FOREST 11: PINYON-JUNIPER 4: SIERRAN EVERGREEN FOREST 6: MIXED EVERGREEN FOREST 15: GREAT BASIN EVERGREEN WOODLAND 10: MIXED EVERGREEN WOODLAND 20: SAGEBRUSH STEPPE 17: C3 GRASSLAND 18: C4 GRASSLAND 19: CHAPARRAL 17: C3 GRASSLAND 18: C4 GRASSLAND 21: DESERT
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This dataset represents the difference between future and historic maximum temperatures under the CSIRO A2 future climate scenario.
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas. Little's tree extent maps can be found in the Data Basin gallery here: http://app.databasin.org/app/pages/galleryPage.jsp?id=5e449f3c91304f498a96299a9d5460a3
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas. Little's tree extent maps can be found in the Data Basin gallery here: http://app.databasin.org/app/pages/galleryPage.jsp?id=5e449f3c91304f498a96299a9d5460a3
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas.
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For his MS thesis, Brendan Rogers used climate data from the PRISM group (Chris Daly, Oregon State University) at a 30arc second (800m) spatial grain across the western 2/3 of the states of Oregon and Washington to generate a climatology or baseline. He then created future climate change scenarios using statistical downscaling to create anomalies from three General Circulation Models (CSIRO Mk3, MIROC 3.2 medres, and Hadley CM 3), each run through three CO2 emission scenarios (SRES B1, A1B, and A2).
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For his MS thesis, Brendan Rogers used climate data from the PRISM group (Chris Daly, Oregon State University) at a 30arc second (800m) spatial grain across the western 2/3 of the states of Oregon and Washington to generate a climatology or baseline. He then created future climate change scenarios using statistical downscaling to create anomalies from three General Circulation Models (CSIRO Mk3, MIROC 3.2 medres, and Hadley CM 3), each run through three CO2 emission scenarios (SRES B1, A1B, and A2).
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For his MS thesis, Brendan Rogers used climate data from the PRISM group (Chris Daly, Oregon State University) at a 30arc second (800m) spatial grain across the western 2/3 of the states of Oregon and Washington to generate a climatology or baseline. He then created future climate change scenarios using statistical downscaling to create anomalies from three General Circulation Models (CSIRO Mk3, MIROC 3.2 medres, and Hadley CM 3), each run through three CO2 emission scenarios (SRES B1, A1B, and A2).
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These maps are a digital representation of the individual tree species range maps of the Atlas of the United States Trees by Elbert L. Little, Jr. The atlas shows the natural distribution or range of the native tree species of North America. These coverages represent 3 volumes of the atlas. Little's tree extent maps can be found in the Data Basin gallery here: http://app.databasin.org/app/pages/galleryPage.jsp?id=5e449f3c91304f498a96299a9d5460a3
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This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). The Food, Fuel, and Materials category in this web service includes layers illustrating the ecosystems and natural resources that provide or support the production of food, fuel, or other materials, the need or demand for these items, the impacts associated with their presence and accessibility, and factors that place stress on the natural environment's capability to provide these benefits. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States. Additional descriptive...
Types: Citation; Tags: Society, Environmental Justice, Endangered, Supply of Ecosystem Services, Response, All tags...


map background search result map search result map Soil order for the North Pacific Landscape Conservation Cooperative- southern Alaska (b), USA Simulated vegetation class (mode), 1986-2005, Hadley CM3 A1fi, 10 km resolution Calculated difference between simulated minimum temperatures for 2071 to 2100 under MIROC A2 climate scenario for the eastern Oregon study area, USA Average value of daily maximum temperatures (2071 to 2100) under MIROC A2 future climate scenario for the eastern Oregon study area USA Average vapor pressure deficit 2071 to 2000 under the CSIRO A2 climate scenario for the eastern Oregon study area USA Canadian yew (Taxus canadensis) extent, North America Black willow (Salix nigra) extent, North America Pitch pine (Pinus rigida) extent, North America Birchleaf Mountain-mahogany (Cercocarpus betuloides) extent, North America Big sagebrush (Artemisia tridentata) extent, North America Whitebark pine (Pinus albicaulis) extent, North America Lodgepole pine (Pinus contorta) extent, North America Noble fir (Abies procera) extent, North America Projected (2070-2099) mean monthly temperature (degrees C) under Miroc B1 for western Oregon and Washington (USA) Projected (2070-2099) mean monthly temperature (degrees C) under Hadley B1 for western Oregon and Washington (USA) Projected (2070-2099) mean monthly temperature (degrees C) under Hadley A2 for western Oregon and Washington (USA) Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Historical and Contemporary Geographic Data Reveal Complex Spatial and Temporal Responses of Vegetation to Climate and Land Stewardship EnviroAtlas - Food, Fuel, and Materials Metrics for Conterminous United States Calculated difference between simulated minimum temperatures for 2071 to 2100 under MIROC A2 climate scenario for the eastern Oregon study area, USA Average value of daily maximum temperatures (2071 to 2100) under MIROC A2 future climate scenario for the eastern Oregon study area USA Average vapor pressure deficit 2071 to 2000 under the CSIRO A2 climate scenario for the eastern Oregon study area USA Historical and Contemporary Geographic Data Reveal Complex Spatial and Temporal Responses of Vegetation to Climate and Land Stewardship Noble fir (Abies procera) extent, North America Projected (2070-2099) mean monthly temperature (degrees C) under Miroc B1 for western Oregon and Washington (USA) Projected (2070-2099) mean monthly temperature (degrees C) under Hadley B1 for western Oregon and Washington (USA) Projected (2070-2099) mean monthly temperature (degrees C) under Hadley A2 for western Oregon and Washington (USA) Soil order for the North Pacific Landscape Conservation Cooperative- southern Alaska (b), USA Status and Distribution of Chihuahuan Desert Grasslands in the United States and Mexico Simulated vegetation class (mode), 1986-2005, Hadley CM3 A1fi, 10 km resolution Birchleaf Mountain-mahogany (Cercocarpus betuloides) extent, North America Pitch pine (Pinus rigida) extent, North America Whitebark pine (Pinus albicaulis) extent, North America Big sagebrush (Artemisia tridentata) extent, North America Canadian yew (Taxus canadensis) extent, North America Lodgepole pine (Pinus contorta) extent, North America Black willow (Salix nigra) extent, North America EnviroAtlas - Food, Fuel, and Materials Metrics for Conterminous United States