Found 109 datasets matching "regression-tree model".
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Green and others (2021) developed a gradient boosted regression tree model to predict the mean groundwater age, or travel time, for shallow wells across a portion of the Great Lakes basin in the...
Search relevance: 131.53 | Views last month: 0 -
This data release contains a boosted regression tree (BRT) model (written in the R programming language), and the input and output data from that model that were used to relate base flow nitrate...
Search relevance: 126.01 | Views last month: 0 -
Management and disturbances have significant effects on grassland forage production. When using satellite remote sensing to monitor climate impacts such as drought stress on annual forage...
Search relevance: 78.92 | Views last month: 0 -
Residence time distribution (RTD) is a critically important characteristic of groundwater flow systems; however, it cannot be measured directly. RTD can be inferred from tracer data with...
Search relevance: 71.64 | Views last month: 2 -
This dataset provides estimates of wildfire carbon emissions and uncertainties at 30-m resolution, and measurements collected at burned and unburned field plots from the 2014 wildfire sites near...
Search relevance: 50.78 | Views last month: 0 -
This USGS data release documents species distribution models for 271 fluvial fish species in their native ranges of the conterminous United States. Source data, supporting code and model results...
Search relevance: 48.45 | Views last month: 0 -
This dataset provides gridded estimates of aboveground biomass (AGB) for four sites in Gabon at 0.25 ha (50 m) resolution derived with field measurements and airborne LiDAR data collected from...
Search relevance: 47.38 | Views last month: 0 -
Africa terrestrial ecosystems were modeled using a biophysical stratification approach based on mapping the major structural components of ecosystems. New 90 meter base resolution continental...
Search relevance: 47.27 | Views last month: 1 -
This USGS data release documents species distribution models for 419 fluvial fish species in their native ranges of the conterminous United States. Source data, supporting code and model results...
Search relevance: 47.12 | Views last month: 0 -
This data release contains data used to develop models and maps that estimate probabilities of exceeding various thresholds of arsenic concentrations in private domestic wells throughout the...
Search relevance: 46.83 | Views last month: 0 -
Groundwater from the Mississippi River Valley alluvial aquifer (MRVA) is a vital resource for agriculture and drinking-water supplies in the central United States. Water availability can be...
Search relevance: 46.27 | Views last month: 0 -
This data release is a subset of the 2010 LANDFIRE Existing Vegetation Cover, covering the Russian River watershed. This LANDFIRE data was downloaded and processed in 2014. The LANDFIRE existing...
Search relevance: 46.26 | Views last month: 0 -
This dataset provides annual maps of live aboveground tree biomass (Mg/ha) for pinyon-juniper forests across the Great Basin of the Western USA for the years 2000-2016 at a spatial resolution of...
Search relevance: 45.70 | Views last month: 0 -
Spreadsheets are included here to support the manuscript "Boosted Regression Tree Models to Explain Watershed Nutrient Concentrations and Biological Condition". This dataset is associated with...
Search relevance: 45.44 | Views last month: 0 -
This data release contains model inputs, R code, and model outputs for predicting depth to bedrock in the Delaware River Basin at a 1km gridded resolution with a random forest model. Model inputs...
Search relevance: 44.25 | Views last month: 2 -
This data release contains: (1) ASCII grids of predicted probability of elevated arsenic in groundwater for the Northwest and Central Minnesota regions, (2) input arsenic and predictive variable...
Search relevance: 44.20 | Views last month: 0 -
The Existing Vegetation Cover (EVC) product depicts percent canopy cover by life form and is an important input to other LANDFIRE mapping efforts. EVC is generated separately for tree, shrub and...
Search relevance: 43.95 | Views last month: 0 -
LANDFIRE's (LF) Remap Forest Canopy Cover (CC) describes the percent cover of the tree canopy in a stand, CC is a vertical projection of the tree canopy cover onto an imaginary horizontal plane....
Search relevance: 43.86 | Views last month: 0 -
LANDFIRE's (LF) 2016 Remap (Remap) Forest Canopy Cover (CC) describes the percent cover of the tree canopy in a stand, CC is a vertical projection of the tree canopy cover onto an imaginary...
Search relevance: 43.86 | Views last month: 0 -
LANDFIRE's (LF) Remap Forest Canopy Cover (CC) describes the percent cover of the tree canopy in a stand, CC is a vertical projection of the tree canopy cover onto an imaginary horizontal plane....
Search relevance: 43.86 | Views last month: 0
