NorWeST Stream Temperatures 2080s (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.

本层代表由NorWeST点特征类（NorWest_TemperaturePoints）推导出的模拟河流水温。NorWeST夏季河流水温情景涵盖了美国西部所有河流和溪流，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。所形成的数据集包含河流线（NorWeST_PredictedStreams）及其关联的中点（NorWest_TemperaturePoints），这些点沿河流网络间隔1公里设置。河流线是从1:100,000比例尺的NHDPlus数据集中提取的（USEPA和USGS 2010；McKay等，2012）。Shapefile的范围与NorWeST处理单元相对应，通常关联到六位数的（第三级）水文单元代码（HUCs）或在某些情况下与州界紧密对应。线形和点状Shapefile包含相同的模拟河流水温结果。这两个特征类旨在相互补充，以适应不同的应用场景。此外，生成模拟温度所使用的空间和时间协变量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。本记录摘自USDA企业数据目录，该目录为https://data.gov目录提供数据。本记录的数据包括以下资源：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。