NorWeST Stream Temperatures 2040s (Feature Layer)

This layer represents modeled stream temperatures derived from the
NorWeST point feature class (NorWest_TemperaturePoints). NorWeST summer
stream temperature scenarios were developed for all rivers and streams
in the western U.S. from the > 20,000 stream sites in the NorWeST
database where mean August stream temperatures were recorded. The
resulting dataset includes stream lines (NorWeST_PredictedStreams) and
associated mid-points NorWest_TemperaturePoints) representing 1
kilometer intervals along the stream network. Stream lines were derived
from the 1:100,000 scale NHDPlus dataset (USEPA and USGS 2010; McKay et
al. 2012). Shapefile extents correspond to NorWeST processing units,
which generally relate to 6 digit (3rd code) hydrologic unit codes
(HUCs) or in some instances closely correspond to state borders. The
line and point shapefiles contain identical modeled stream temperature
results. The two feature classes are meant to complement one another for
use in different applications. In addition, spatial and temporal
covariates used to generate the modeled temperatures are included in the
attribute tables at
https://www.fs.usda.gov/rm/boise/AWAE/projects/NorWeST/ModeledStreamTemperatureScenarioMaps.shtml.
The NorWeST NHDPlusV1 processing units include: Salmon, Clearwater,
Spokoot, Missouri Headwaters, Snake-Bear, MidSnake, MidColumbia, Oregon
Coast, South-Central Oregon, Upper Columbia-Yakima, Washington Coast,
Upper Yellowstone-Bighorn, Upper Missouri-Marias, and Upper Green-North
Platte. The NorWeST NHDPlusV2 processing units include: Lahontan Basin,
Northern California-Coastal Klamath, Utah, Coastal California, Central
California, Colorado, New Mexico, Arizona, and Black Hills.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService OGC WMS CSV Shapefile GeoJSON KML For complete information, please visit https://data.gov.

本层表示由 NorWeST 点特征类（NorWest_TemperaturePoints）推导出的模拟河流水温。NorWeST 夏季河流水温情景针对美国西部所有河流及溪流进行开发，数据源自 NorWeST 数据库中超过 20,000 个记录了平均 8 月河流水温的监测点。所得到的数据集包括河流线（NorWeST_PredictedStreams）及其对应的中间点（NorWest_TemperaturePoints），这些点代表河流网络沿线的 1 公里间隔。河流线是从 1:100,000 比例尺的 NHDPlus 数据集（USEPA 和 USGS 2010；McKay 等 2012）中提取的。Shapefile 的范围与 NorWeST 处理单元相对应，通常与 6 位（第 3 级）水文单元代码（HUCs）相关联，或在某些情况下与州界紧密对应。线状和点状 Shapefile 包含相同的模拟河流水温结果。这两个要素类旨在互补，以适应不同的应用场景。此外，用于生成模拟温度的空间和时间协变量已包含在以下网址的属性表中：https://www.fs.usda.gov/rm/boise/AWAE/projects/NorWeST/ModeledStreamTemperatureScenarioMaps.shtml。NorWeST NHDPlusV1 处理单元包括：Salmon、Clearwater、Spokoot、Missouri Headwaters、Snake-Bear、MidSnake、MidColumbia、Oregon Coast、South-Central Oregon、Upper Columbia-Yakima、Washington Coast、Upper Yellowstone-Bighorn、Upper Missouri-Marias 和 Upper Green-North Platte。NorWeST NHDPlusV2 处理单元包括：Lahontan Basin、Northern California-Coastal Klamath、Utah、Coastal California、Central California、Colorado、New Mexico、Arizona 和 Black Hills。本记录来源于向 https://data.gov 目录提供数据的 USDA 企业数据目录。本记录的数据资源包括以下内容：ISO-19139 元数据、ArcGIS Hub 数据集、ArcGIS GeoService、OGC WMS、CSV、Shapefile、GeoJSON。欲获取完整信息，请访问 https://data.gov。