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Keyword: precipitation

Climate data for RPA 2020 Assessment: MACAv2 (METDATA) historical modeled (1950-2005) and future (2006-2099) projections for the conterminous United States at the 1/24 degree grid scale

Datasets Posted on: December 30, 2020
The 2020 Resources Planning Act (RPA) Assessment will include climate change as a driver affecting natural resources on all forest and rangelands in the United States. These climate projections, along with projections for population dynamics, economic growth, and land use change in the United States, comprise the RPA scenarios.

RPA Historical observational data (1979-2015) for the conterminous United States at the 1/24 degree grid scale based on MACA training data (METDATA) (2nd Edition)

Datasets Posted on: December 30, 2020
This data publication contains a gridded historical (1979-2015) dataset for the conterminous United States that has been summarized to the monthly time scale. This monthly historical dataset was developed using the daily MACA observational data (METDATA), also called MACA Training Data (https://www.northwestknowledge.net/metdata/data/).

National forest climate change maps: your guide to the future

Projects Posted on: December 09, 2020
The National Forest Climate Change Maps project was developed to meet the need of National Forest managers for information on projected climate changes at a scale relevant to decision making processes, including Forest Plans.  The maps use state-of-the-art science and are available for every National Forest in the contiguous United States with relevant data coverage. Currently, the map sets include variables related to precipitation, air temperature, snow (including April 1 snow-water equivalent (SWE) and snow residence time), and stream flow.

WWETAC PhenoMap

Tools Posted on: September 01, 2020
PhenoMap is a web browser mapping application that delivers weekly vegetation ‘greenness’ from satellite data across all lands in the conterminous United States. This information can be used by managers to support tactical management decisions and monitor areas ranging from 15 acres to the landscape level.

Phenological patterns in the desert spring ephemeral Astragalus holmgreniorum Barneby (Fabaceae)

Publications Posted on: July 29, 2020
Herbaceous perennial species may exhibit winter or summer dormancy, or they may be spring ephemerals with dormancy extending from summer through winter. Herbaceous perennials, and spring ephemerals in particular, are most common in strongly seasonal but relatively mesic temperate environments. Warm deserts are typically dominated by shrubs and annuals that are better adapted to withstand or avoid severe summer heat.

Temperate forests and soils [Chapter 6]

Publications Posted on: June 25, 2020
Temperate forests are extensive in the mid-latitudes of Earth and include a broad range of forest types and climates. Temperate forest soils reflect the seasonal variability in temperature and precipitation that make them productive and highly variable. Temperate forest soils also reflect the forest vegetation under which they develop.

Reviewing fire, climate, deer, and foundation species as drivers of historically open oak and pine forests and transition to closed forests

Publications Posted on: June 10, 2020
Historically open oak and pine savannas and woodlands have transitioned to closed forests comprised of increased numbers of tree species throughout the eastern United States. We reviewed evidence for and against a suite of previously postulated drivers of forest transition focused on (1) change in fire regimes, (2) increased precipitation, (3) increased white-tailed deer densities, and (4) loss of American chestnut.

Main range watershed yields five times as much water as produced by a Front Range watershed

Publications Posted on: February 19, 2020
During 1939, stream-gaging stations were built to measure water yields from typical watersheds on the Manitou Experimental Forest in the Front Range (Missouri Gulch) and on the Fraser Experimental Forest in the Main Range (Fool Creek).

The interception of rain and snow by a forest of young ponderosa-pine

Publications Posted on: February 19, 2020
The interception of rain and snow in the forest-canopy is a factor of sufficient magnitude to require its measurement in any complete study of the hydrology of forested watersheds.

Watershed Management Research Meeting: Manitou Experimental Forest

Publications Posted on: February 19, 2020
This meeting was planned to allow a review of the measurements and processes involved in watershed research. The agenda lists topics and discussion leaders. The discussion should come from all those present. We are fortunate to have with us Bernie Frank, Ted Osborne, and Hank Sims from the Washington Office; George Hardaway and Alan Iamb from Region 3; and Jack McNutt from Region 2. We'll expect to hear from them throughout the meeting.

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