Historical summer temperature (CONUS) (Image Service)

The National Forest Climate Change Maps project was developed by the Rocky Mountain Research Station (RMRS) and the Office of Sustainability and Climate to meet the needs 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 snow residence time and April 1 snow water equivalent), and stream flow.\n\nHistorical (1975-2005) and future (2071-2090) precipitation and temperature data for the contiguous United States are ensemble mean values across 20 global climate models from the CMIP5 experiment (https://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-11-00094.1), downscaled to a 4 km grid. For more information on the downscaling method and to access the data, please see Abatzoglou and Brown, 2012 (https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.2312) and the Northwest Knowledge Network (https://climate.northwestknowledge.net/MACA/). We used the MACAv2- Metdata monthly dataset; average temperature values were calculated as the mean of monthly minimum and maximum air temperature values (degrees C), averaged over the season of interest (annual, winter, or summer). Absolute change was then calculated between the historical and future time periods.\n\nRaster data are also available for download from RMRS site (https://www.fs.usda.gov/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/categories/us-raster-layers.html), along with pdf maps and detailed metadata (https://www.fs.usda.gov/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/downloads/NationalForestClimateChangeMapsMetadata.pdf).\n\nThis 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 For complete information, please visit https://data.gov.

国家森林气候变化地图项目由落基山脉研究站（RMRS）和可持续发展与气候变化办公室共同开发，旨在满足国家森林管理者对决策过程中相关气候变化的预测信息的需求，包括森林规划。这些地图采用了最先进的科学方法，涵盖了美国所有连续森林区域的相关数据。目前，地图集包括与降水、气温、积雪（包括积雪停留时间和4月1日的积雪水当量）以及溪流流量相关的变量。

连续统一体的美国（1975-2005）和未来（2071-2090）的降水和气温数据为CMIP5实验中20个全球气候模型的集合平均值（https://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-11-00094.1），并降至4公里网格。有关降尺度方法的更多信息以及访问数据，请参阅Abatzoglou和Brown，2012（https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.2312）和西北知识网络（https://climate.northwestknowledge.net/MACA/）。我们使用了MACAv2-元数据月度数据集；平均气温值计算为每月最低和最高气温值的平均值（摄氏度），在感兴趣的季节内（年度、冬季或夏季）平均。然后计算历史时期和未来时期之间的绝对变化。

栅格数据也可从RMRS网站（https://www.fs.usda.gov/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/categories/us-raster-layers.html）下载，以及PDF地图和详细的元数据（https://www.fs.usda.gov/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/downloads/NationalForestClimateChangeMapsMetadata.pdf）。

此记录取自美国农业部企业数据目录，该目录输入到https://data.gov目录。此记录的数据包括以下资源：ISO-19139元数据、ArcGIS Hub数据集、ArcGIS GeoService。完整信息请访问https://data.gov。