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Drought The Palmer Drought Severity Index Winter Mean 2005-2014 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in summer months, 2005-2014.Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services. Although... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought The Palmer Drought Severity Index Annual Mean 1950-1999 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in all months, 1950-1999.Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services. Although... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climate, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought The Palmer Drought Severity Index Summer Mean 2005-2014 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in summer months, 2005-2014.Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services. Although... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought The Palmer Drought Severity Index Annual Mean 2005-2014 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in all months, 2005-2014. Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services. Although... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought The Palmer Drought Severity Index Winter Mean 1950-1999 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in winter months, 1950-1999.Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services. Although... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climate, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought The Palmer Drought Severity Index Summer Mean 1950-1999 Regional Climate Centers (RCC) Palmer Drought Severity Index (PDSI: drought index). Recent 10-year climatology for drought in summerl months, 1950-1999.Drought is one of the most consequential aspects of variation in precipitation and temperature patterns in terms of its impacts on natural ecosystems and human systems. The production of food and clean water can be strongly affected, as can forest products production, outdoor recreation, ecosystem processes such as wildland fire, and many other processes affecting ecosystem services. Having a grasp on recent ranges of variability in drought conditions can provide a context for understanding ongoing and future climate change and its impacts on ecosystem services.... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Academics & scientific researchers, AppLCC, AppLCC, Appalachian, Conservation NGOs, All tags... Data, Data.gov Appalachian Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Hunters & anglers, Interested public, LCC Network Science Catalog, Palmer, Policy makers & regulators, Private land owners, Regional & county planners, State agencies, Tribes, climate, climatologyMeteorologyAtmosphere, completed, drought, drought, scpdsi, scpdsi, severity, Fewer tags Drought stress changing the Takhini landscape Your Yukon is a weekly column about environmental issues and research, from Canada's Yukon. This column discusses how climate change, especially drought stress, may be affecting the boreal forest.--Includes text from publisher's website. Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: P2-Changes in Plant and Animal Species Due to Climate Change Southwest Energy Development and Drought Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of environmental resources. They are designed to serve as a spatial framework for the research, assessment, management, and monitoring of ecosystems and ecosystem components. These general purpose regions are critical for structuring and implementing ecosystem management strategies across federal agencies, state agencies, and nongovernment organizations that are responsible for different types of resources within the same geographical areas. The approach used to compile this map is based on the premise that ecological regions can be identified through the analysis of patterns of biotic and abiotic phenomena, including... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Biology, Conservation, Ecology, Ecosystem, Land, All tags... Natural Resources, United States, biota, boundaries, environment, location, Fewer tags Impacts of drought on forest growth and regeneration following fire in southwestern Yukon, Canada Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Relationship Understanding 2b-Effects of Fire on Ecosystems Stable carbon isotope analysis reveals widespread drought stress in boreal black spruce forests Unprecedented rates of climate warming over the past century have resulted in increased forest stress and mortality worldwide. Decreased tree growth in association with increasing temperatures is generally accepted as a signal of temperature-induced drought stress. However, variations in tree growth alone do not reveal the physiological mechanisms behind recent changes in tree growth. Examining stable carbon isotope composition of tree rings in addition to tree growth can provide a secondary line of evidence for physiological drought stress. In this study, we examined patterns of black spruce growth and carbon isotopic composition in tree rings in response to climate warming and drying in the boreal forest of interior... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Ecosystems Spatial variation of trends in wildfire and summer drought in British Columbia, Canada, 1920-2000 Owing to large climatic and orographic variation, British Columbia covers a variety of ecosystems extending from temperate rainforests on the Pacific coast to boreal forests in the north-east. The aim of this study is to investigate the spatial variation of trends in wildfire activity and their relationship to summer drought for the entire province of British Columbia. Time series of annual wildfire extent and occurrence, summer self-calibrating Palmer Drought Severity Index and summer Aridity Index were derived from spatially explicit data. Sixteen landscape regions according to the provincial Biogeoclimatic Ecosystem Classification system served as spatial reference. The regional series for 1920-2000 were subjected... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: P2-Changes in Plant and Animal Species Due to Climate Change, R2b-Effects of Fire on Ecosystems Drought-induced stomatal closure probably cannot explain divergent white spruce growth in the Brooks Range, Alaska Increment cores from the boreal forest have long been used to reconstruct past climates. However, in recent years, numerous studies have revealed a deterioration of the correlation between temperature and tree growth that is commonly referred to as "divergence". In the Brooks Range of northern Alaska, studies of white spruce (Picea glauca) revealed that trees in the west generally showed positive growth trends, while trees in the central and eastern Brooks Range showed mixed and negative trends during late 20th century warming. The growing season climate of the eastern Brooks Range is thought to be drier than the west. On this basis, divergent tree growth in the eastern Brooks Range has been attributed to drought... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Flora Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: R1-Vulnerability Forest Species and Communities to Climate Change Relationship between fire, climate oscillations, and drought in British Columbia, Canada, 1920–2000 Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Ecosystems, Relationship Understanding 2b-Effects of Fire on Ecosystems The sensitivity of carbon fluxes to spring warming and summer drought depends on plant functional type in boreal forest ecosystems [electronic resource] Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: P2-Changes in Plant and Animal Species Due to Climate Change Carbon isotope discrimination in tree ring alpha-cellulose indicates that drought stress cannot explain white spruce growth declines in the eastern Brooks Range, Alaska High latitude trees are increasingly showing mixed growth responses to climate warming. Recent studies of white spruce (Picea glauca ) in the Brooks Range of Alaska have revealed that trees in the west have generally shown positive growth responses, while trees in the central and eastern Brooks Range have shown mixed and negative growth responses, respectively. An earlier study suggested that the growing season climate of the eastern Brooks Range is warmer and drier than in the west. On this basis, growth declines in the eastern Brooks Range were attributed to drought stress, caused by rising temperature and increasing evaporative demand. I investigated the hypothesis that drought stress can explain white spruce... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Flora Response of plant community structure and primary productivity to experimental drought and flooding in an Alaskan fen Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Ecosystems Remote sensing of interannual boreal forest NDVI in relation to climatic conditions in interior Alaska Climate has warmed substantially in interior Alaska and several remote sensing studies have documented a decadal-scale decline in the normalized difference vegetation index (NDVI) termed a ‘browning trend’. Reduced summer soil moisture due to changing climatic factors such as earlier springs, less snowpack, and summer drought may reduce boreal productivity and NDVI. However, the relative importance of these climatic factors is poorly understood in boreal interior Alaska. In this study, I used the remotely sensed peak summer NDVI as an index of boreal productivity at 250 m pixel size from 2000 to 2014. Maximum summer NDVI was related to last day of spring snow, early spring snow water equivalent (SWE), and a... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile Precipitation-driven decrease in wildfires in British Columbia Trends of summer precipitation and summer temperature and their influence on trends in summer drought and area burned in British Columbia (BC) were investigated for the period 1920–2000. The complexity imposed by topography was taken into account by incorporating high spatial resolution climate and fire data. Considerable regional variation in trends and in climate–fire relationships was observed. A weak but significant increase in summer temperature was detected in northeastern and coastal BC, whereas summer precipitation increased significantly in all regions—by up to 45.9 %. A significant decrease in province-wide area burned and at the level of sub-units was strongly related to increasing precipitation, more... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Relationship Understanding 2b-Effects of Fire on Ecosystems Predicted daily elk abortion events in southern GYE 2010, 2012, 2014 Using data from 288 adult and yearling female elk that were captured on 22 Wyoming winter supplemental elk feedgrounds and monitored with GPS collars, we fit Step Selection Functions (SSFs) during the spring abortion season and then implemented a master equation approach to translate SSFs into predictions of daily elk distribution for 5 plausible winter weather scenarios (from a heavy snow, to an extreme winter drought year). We then predicted abortion events by combining elk distributions with empirical estimates of daily abortion rates, spatially varying elk seroprevalence, and elk population counts. Here we provide the predicted abortion events on a daily basis at a 500m resolution for the 5 different weather... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Brucella abortus, Cervus canadensis, Grand Teton National Park, Jackson, Lincoln, All tags... National Elk Refuge, Sublette, Teton, Wyoming, biota, brucellosis, cattle risk, daily abortion risk, disease transmission, elk, mammals, predictions, space use, step selection function, ungulate, wildlife disease, Fewer tags 1 2 3 4 »