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Fighting drought with fire: Can prescribed fire increase forest resistance to drought? A century of fire exclusion across many forest types in the western U.S. has resulted in unforeseen changes, including high fuel accumulations, high densities of trees, and increasing dominance of fire-intolerant species. These changes are particularly acute in forests that historically experienced high frequency and low severity fires. In response, the NPS Pacific-West region supports a large prescribed fire program to reduce understory fuels and forest density. Prescribed fire has been generally successful at reducing understory fuels and threats of catastrophic fire, and treated stands are expected to be more resistant to future wildfire. Less well understood is how well prescribed fire confers resistance to... Categories: Data, Project; Tags: 2016, California Landscape Conservation Cooperative, Datasets/Database, Federal resource managers, Informing Conservation Delivery, All tags... LCC, LCC Network Science Catalog, Project, Publication, Training/Outreach/Workshop, Website, environment, onGoing, Fewer tags Palmer Hydrological Drought Index (PHDI) values for selected Chesapeake Bay watersheds This dataset contains values of the Palmer Hydrological Drought Index (PHDI) for annual and seasonal periods from 1985-2012. Values are derived from data based on National Climatic Data Center (NCDC) climate divisions, of which there are 344 in the U.S. Categories: Data; Types: Citation; Tags: Chesapeake Bay, Delaware, James River, Maryland, New York, All tags... Palmer Hydrological Drought Index, Pennsylvania, Potomac River, Rappahannock River, Susquehanna River, Virginia, Washington, D.C., West Virginia, drought, surface water quality, Fewer tags Measures of the vulnerability of runoff to drought during 2015 in the western United States Measures used to assess the vulnerability of streamflow in 326 river basins to the 2015 drought in the western United States. Categories: Data; Tags: USGS Science Data Catalog (SDC), Western United States, drought, streamflow Growth and photosynthesis or red maples subjected to drought in North Carolina These data were collected from 27 April 2017 through 4 Septmber 2017. Data are measurements of plant physiology collected using a LI-COR LI-6400XT Portable Photosynthesis System. Methods detailed in: Lahr, E.C., Backe, K.M. & Frank, S.D. Intraspecific variation in morphology, physiology, and ecology of wildtype relative to horticultural varieties of red maple (Acer rubrum). Trees 34, 603–614 (2020). Categories: Data; Tags: North Carolina, Raleigh, NC, biota, droughts, photosynthesis Article: Evil Cannibal Squirrels Could Make California's Drought Less Terrible Article in Jan 2015 Mother Jones. Categories: Data; Tags: Completed, Document, LCC Network Science Catalog, environment National Water Information System (NWIS) and National Ground Water Monitoring Network (NGWMN) Annual Low Flow and Drought Statistics Groundwater Annual Drought Metrics -------------------------------- Percentile Annual Metrics -Total duration below threshold: The number of days of the year where flow percentiles are below the threshold. -Longest Duration below threshold: The longest continuous period in a year where flow percentiles are below the threshold. -Total volume below threshold: The volume of days of the year where flow percentiles are below the threshold. -Largest volume below threshold: The largest volume of a continuous period in a year where flow percentiles are below the threshold. -Minimum percentile: the lowest flow percentile in a year. -------------------------------- Percentile Event Metrics -Total drought volume: Annual... Categories: Data; Tags: biota Impact of Drought on Southwestern Pronghorn Population Trends and Predicted Trajectories Predictor Model Climate often drives ungulate population dynamics, and as climates change, some areas may become unsuitable for species persistence. Unraveling the relationships between climate and population dynamics, and projecting them across time, advances ecological understanding that informs and steers sustainable conservation for species. Using pronghorn (Antilocapra americana) as an ecological model, we used a Bayesian approach to analyze long-term population, precipitation, and temperature data from 18 subpopulations in the southwestern United States. We determined which long-term (12 and 24 months) or short-term (gestation trimester and lactation period) climatic conditions best predicted annual rate of population growth... Categories: Data; Types: Citation; Tags: Antilocapra americana, Arizona, Drought, Drought, Fire and Extreme Weather, Mammals, All tags... National CASC, New Mexico, Texas, Utah, Wildlife and Plants, climate change, density dependence, integrated Bayesian population models, large herbivores, population dynamics, rainfall effects, southwestern US, southwestern United States, southwestern United States, standardized precipitation index, ungulates, western Texas, Fewer tags Examining Soil and Drought Dynamics to Improve Fire Forecasting in the Southern Great Plains 2002-2011 Precipitation amounts, and frequencies are major regulators of soil heat-load profiles as the interval between rainfall events allows for increased heat storage during cloudless days. The extreme drought of 2011 and the subsequent Flash Drought that occurred in summer, 2012, developed in part due to soil temperature dynamics across the landscape of the Southern High Plains. For both agroecosystems and natural landscapes within the South-Central Region, soil temperature has a major role in determining the success of annual cropping systems, the ability of perennial plants to either establish or maintain themselves and the ability of the soil bacteria and fungi to carry out important decomposition and nutrient cycling,... Categories: Data; Tags: Daily Temperature Range, Drought, Drought, Fire and Extreme Weather, Fire, Soils, All tags... South Central CASC, Southern High Plains, West Texas Mesonet, biota, soil temperature variability, Fewer tags Terms, Statistics, and Performance Measures for Maximum Likelihood Logistic Regression Models Estimating Hydrological Drought Probabilities in the United States (2017) A table is presented listing: (1) USGS Gage Station Numbers, (2) Model Identification Tags, (3) Model Term Estimates, (4) Model Term Fit Statistics, and (5) Model Performance Indices for Maximum Likelihood Logistic Regression (MLLR) Models estimating hydrological drought probabilities in the United States. Models were developed using streamflow daily values (DV) readily available from the U.S. Geological Survey National Water Information System (NWIS) and mean monthly streamflows readily computed from NWIS streamflow DV. Models were prepared for 9,144 sites throughout the United States as described in: Modeling Summer Month Hydrological Drought Probabilities In The United States Using Antecedent Flow Conditions... Categories: Data; Types: Citation; Tags: Puerto Rico, USGS Science Data Catalog (SDC), United States of America, decision support systems, drought, All tags... forecasting, risk assessment, streamflow, surface water hydrology, water supply, watershed management, Fewer tags Synthesis of Data Inputs from the Bishop Museum Collections on Drought Related Environmental Changes and Natural Climate Indicators from Traditional Responses This research provides insight on Native Hawaiian relationships to drought historically as well as current practices within community-based management. Of importance are historical records of drought spanning short term in one section of an island to three generations across multiple islands. This dataset represents a survey of the Ulukau, Papakilo Database, and Kuluwaimaka Collection from the Bishop Museum for drought related environmental changes and natural climate indicators, traditional responses to related disasters. First, a review of Hawaiian proverbs (‘ōlelo no‘eau) related to drought and elements impacted by drought (e.g., plants, food resource, death, famine) identify perspectives that reflect household... Categories: Data; Tags: Drought, Environmental Change, Hawaii, Hawaiian language, Native communities, All tags... Traditional Ecological Knowledge, biota, Fewer tags Snow drought classification and streamflow timing and magnitude signatures for snow dominated USGS watersheds in the Conterminous United States from 1980 to 2020 This data release contains snow drought classifications as well as streamflow timing and magnitude signatures for gaged, snow-dominated U.S. Geological Survey (USGS) watersheds in the Conterminous United States (CONUS) from 1980 to 2020 supporting the journal article "Snow drought classification and streamflow timing and magnitude signatures for snow dominated USGS watersheds in the Conterminous United States from 1980 to 2020." Specifically, this dataset contains snow drought classifications as "no snow drought," "cool and dry snow drought," "warm and dry snow drought," and "warm and wet snow drought." Along with the snow drought classification for each water year, climate data used to determine the snow drought... Categories: Data; Tags: Conterminous United States, USGS Science Data Catalog (SDC), Water Resources, drought, farming, All tags... inlandWaters, snow, snowmelt, streamflow, Fewer tags National Water Information System (NWIS) and National Ground Water Monitoring Network (NGWMN) Water Level Percentiles Drought Summaries for Various Time Periods This folder contains summaries of droughts based on percentiles estimates of groundwater levels from NWIS and NGWMN for various time periods. It also contains various associated files that were used in assembling and producing this dataset. Additional information regarding NWIS groundwater data can be found here: USGS Groundwater Data for the Nation. More information regarding the NGWMN can be found here: National Ground-Water Monitoring Network (usgs.gov) -------------------------------------- Explanation of file names: The first several pieces are the type of data use to create the file "groundwater_percentiles" After this is the time period of analysis, e.g. "1970-2020" Next is the percentile calculation method,... Categories: Data; Tags: Drought, Groundwater, biota Electrical resistance data from the Willow-Whitehorse watersheds of southeast Oregon, USA, 2014-2016 This dataset includes electrical resistance data from a network of 50 data loggers that was installed throughout the Willow-Whitehorse watershed of SE Oregon in September 2014. Data loggers were downloaded in August 2015 and September 2016. These data loggers were used as “electrical resistance” (ER) sensors, following Chapin et al. 2014. The sensors were Onset HOBO Pendant temperature data loggers that were modified to monitor streamflow intermittency and determine the timing of stream drying. Categories: Data; Tags: Drought, Drought, Fire and Extreme Weather, GNIS ID 1128246, GNIS ID 1129010, GNIS ID 1129139, All tags... Harney County, Malheur County, National CASC, Oregon, Rivers, Streams and Lakes, Stream / River, Stream temperature, Trout Creek Mountains, Water, Coasts and Ice, Watershed, Whitehorse Creek, Willow Creek, droughts, inlandWaters, streamflow, surface water (non-marine), water temperature, Fewer tags Macro and micro nutrient characteristics of four biochar-amended soils from Oregon, 2018 Research has suggested that biochar soil amendments have the ability to improve soil water retention, but results have not been consistent or predictable across soil types. The objective of this project was to evaluate the potential for biochar soil amendments to mitigate agricultural drought by characterizing their impacts on soil hydraulics and plant growth across a range of agricultural soil conditions. This data set contains soil moisture retention curves and unsaturated hydraulic conductivities for four Oregon agricultural soils amended with biochar. Gasified biochars made from wheat straw (AgEnergy, Spokane, WA) and conifer wood (BioLogical, Philomath, OR) were tilled into soils at experimental stations in... Categories: Data; Types: Downloadable; Tags: Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Klamath Falls, Landscapes, All tags... Landscapes, Madras, Northwest CASC, Oregon, Other Landscapes, Pacific Northwest, Pendleton, Willamette, climatologyMeteorologyAtmosphere, environment, farming, porosity, soil moisture, Fewer tags Moisture retention and hydraulic conductivity for four biochar-amended soils from Oregon, 2018 Research has suggested that biochar soil amendments have the ability to improve soil water retention, but results have not been consistent or predictable across soil types. The objective of this project was to evaluate the potential for biochar soil amendments to mitigate agricultural drought by characterizing their impacts on soil hydraulics and plant growth across a range of agricultural soil conditions. This data set contains soil moisture retention curves and unsaturated hydraulic conductivities for four Oregon agricultural soils amended with biochar. Gasified biochars made from wheat straw (AgEnergy, Spokane, WA) and conifer wood (BioLogical, Philomath, OR) were tilled into soils at experimental stations in... Categories: Data; Tags: Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Klamath Falls, Landscapes, All tags... Landscapes, Madras, Northwest CASC, Oregon, Other Landscapes, Pacific Northwest, Pendleton, Willamette, climatologyMeteorologyAtmosphere, environment, farming, porosity, soil moisture, Fewer tags Mercury Exposure in Piscivorous Birds at the Carson River (NV) Superfund Site, 1997-2006: egg data The persistence and degree of mercury contamination of the lower Carson River system (LCRS) have led to placement of a portion of the Carson River Basin (including Lahontan Reservoir) on the US. Environmental Protection Agency (EPA) National Priorities List ("Superfund") for research and cleanup. The potential toxicity of mercury concentrations within the LCRS to piscivorous birds (snowy egrets, black-crowned night-herons, and double-crested cormorants) was examined from 1997-2006. This data set supports the following publications: Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., 2007, Mercury and drought along the lower Carson River, Nevada- I. Snowy egret and black-crowned night-heron annual exposure to mercury,... Categories: Data; Types: Citation; Tags: Carson Lake, Carson River, Egretta thula, Lahontan Reservoir, Nevada, All tags... Nycticorax nycticorax, Phalacrocorax auritus, USA, black-crowned night-heron, contaminants, double-crested cormorant, drought, histopathology, mercury, methyl mercury, mining, piscivory, reproduction, snowy egret, total mercury, water discharge, Fewer tags Mercury Exposure in Piscivorous Birds at the Carson River (NV) Superfund Site, 1997-2006: biochemistry and histopathology data The persistence and degree of mercury contamination of the lower Carson River system (LCRS) have led to placement of a portion of the Carson River Basin (including Lahontan Reservoir) on the US. Environmental Protection Agency (EPA) National Priorities List ("Superfund") for research and cleanup. The potential toxicity of mercury concentrations within the LCRS to piscivorous birds (snowy egrets, black-crowned night-herons, and double-crested cormorants) was examined from 1997-2006. This data set supports the following publications: Henny, C.J., Hill, E.F., Grove, R.A., Kaiser, J.L., 2007, Mercury and drought along the lower Carson River, Nevada- I. Snowy egret and black-crowned night-heron annual exposure to mercury,... Categories: Data; Types: Citation; Tags: Carson Lake, Carson River, Egretta thula, Lahontan Reservoir, Nevada, All tags... Nycticorax nycticorax, Phalacrocorax auritus, USA, black-crowned night-heron, contaminants, double-crested cormorant, drought, histopathology, mercury, methyl mercury, mining, piscivory, reproduction, snowy egret, total mercury, water discharge, Fewer tags Streamflow Observation Points in the Pacific Northwest, 1977-2016 This dataset includes spatial locations in the Pacific Northwest where streamflow observations were recorded. For the purpose of this investigation, all streamflow observations were converted into wet or dry indicator values. Categories: Data; Tags: California, Climatology, Data Visualization & Tools, Data Visualization & Tools, Decision-Making Support and Tools, All tags... Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Ecology, Hydrogeology, Idaho, Montana, NHD Region 17, Nevada, Northwest CASC, Oregon, Pacific Northwest, Rivers, Streams and Lakes, Rivers, Streams and Lakes, Science Tools For Managers, Science Tools For Managers, USGS Science Data Catalog (SDC), Utah, Washington, Water Resources, Water, Coasts and Ice, Water, Coasts and Ice, Wyoming, inlandWaters, intermittent, perennial, permanence, streamflow, streams, Fewer tags Soil water infiltration in four biochar-amended soils from Oregon, 2018 The objective of this project was to evaluate the potential for biochar soil amendments to mitigate agricultural drought by characterizing their impacts on soil hydraulics and plant growth across a range of agricultural soil conditions. This data set contains soil water infiltration measurements using Beerkan infiltration rings in four Oregon agricultural soils amended with biochar. Gasified biochars made from wheat straw (AgEnergy, Spokane, WA) and conifer wood (BioLogical, Philomath, OR) were tilled into soils at experimental stations in Madras (loam), Pendleton (silt loam), Aurora (sandy loam), and Klamath Falls (loamy sand). The biochars were incorporated by tillage in fall 2016 to a depth of 12 cm at rates... Categories: Data; Tags: Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Klamath Falls, Landscapes, All tags... Landscapes, Madras, Northwest CASC, Oregon, Other Landscapes, Pacific Northwest, Pendleton, Willamette, climatologyMeteorologyAtmosphere, environment, farming, infiltration, percolation, porosity, soil moisture, Fewer tags Sequoia foliage dieback and tree-ring data from Sequoia National Park These datasets provide spatially-explicit estimates of the magnitude of giant sequoia foliage dieback along selected trail corridors in Sequoia and Kings Canyon national parks, California, from 2014 through 2017. They additionally provide giant sequoia tree-ring measurements, through the year 1989, for two locations in the Giant Forest grove, Sequoia National Park, California. These data support the following publications: Nathan L. Stephenson, Adrian J. Das, Nicholas J. Ampersee, Kathleen G. Cahill, Anthony C. Caprio, John E. Sanders, A. Park Williams, Patterns and correlates of giant sequoia foliage dieback during California’s 2012–2016 hotter drought, Forest Ecology and Management, Available online 7 November... Categories: Data; Tags: Sequoia tree, Sequoiadendron giganteum, Sierra Nevada, USGS Science Data Catalog (SDC), biota, All tags... environment, forest ecosystems, forest vulnerability, leaf senescence, tree rings, Fewer tags 1 2 3 4 5 »