GBM-based predictions of historical fire activity in Alaska

• Format: Dataset
• Language: unknown
• Published: Arctic Data Center 2015
• Subjects: EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > FIRE ECOLOGY > FIRE MODELS; EARTH SCIENCE > AGRICULTURE > FOREST SCIENCE > FOREST FIRE SCIENCE; EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > FIRE ECOLOGY > FIRE OCCURRENCE; EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > ALPINE/TUNDRA; OTHER; GRID; 1 KILOMETER TO 10 KILOMETERS; DECADAL; Tundra; Alaska
• Online Access: https://search.dataone.org/view/urn:uuid:a4b5e1ad-0d46-4d82-ab29-69fa0ea90a9e

Datasets used in: Young, A.M., Higuera, P.E., Duffy, P.A., and F.S. Hu. Climatic thresholds shape northern high-latitude fire regimes and imply vulnerability to future climate change. In Review at Ecography as of 10/2015. ---------------------------------------------------------------------- ----------------------- Description ---------------------------------- ---------------------------------------------------------------------- These data are gridded maps of Alaska containing the predicted 30-yr probabiltiy of fire occurrence for each pixel during the historical period. Predictions are made using the gbm models on a holdout sample of the data not used to train the gbms. See Young et al. (In Review) for details. Each folder (AK, BOREAL, and TUNDRA) contains 100 predicted probability maps, with each model number (see 'file naming' below) corresponding to each of the 100 gbms made for each of the three models. ---------------------------------------------------------------------- ----------------------- Resolution ----------------------------------- ---------------------------------------------------------------------- Spatial Resolution: 2 km Temporal Resolution: Decadal Time Coverage: 1950-2009 ---------------------------------------------------------------------- ------------------------ File Naming --------------------------------- ---------------------------------------------------------------------- 'MODEL_' - Models built for all of Alaska ('AK'), only boreal forest ('BOREAL'), and only tundra ('TUNDRA') 'pred_map' - predicted 30-yr probabiliy of fire occurrence [0-1] '_xx' - model number (1-100) '.tif' - file extention ---------------------------------------------------------------------- ------------------ Geographic Information ---------------------------- ---------------------------------------------------------------------- Rows: 725 Columns: 687 Spatial Extent (in meters) - - Top: 2390439.786 - Left: -656204.44 - Right: 717795.56 - Bottom: 940439.786 Spatial Reference: Albers Equal Area Datum: North American 1983 False Easting: 0 False Northing: 0 Central Meridian: -154 Standard Parallel 1: 55 Standard Parallel 2: 65 Latitude of Origin: 50