EnviroAtlas - Precipitation 1950 - 2099 for the Conterminous United States
Dataset Identification:
Resource Abstract:
The EnviroAtlas Climate Scenarios were generated from NASA Earth Exchange (NEX) Downscaled Climate Projections (NEX-DCP30)
ensemble averages (the average of over 30 available climate models) for each of the four representative concentration pathways
(RCP) for the contiguous U.S. at 30 arc-second (approx. 800 m2) spatial resolution. NEX-DCP30 mean monthly precipitation rate
for the 4 RCPs (2.6, 4.5, 6.0, 8.5) were organized by season (Winter, Spring, Summer, and Fall) and annually for the years
2006 ?? 2099. Additionally, mean monthly precipitation rate for the ensemble average of all historic runs is organized similarly
for the years 1950 ?? 2005. This dataset was produced by the US EPA to support research and online mapping activities related
to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping
application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as
downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive
information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).
Citation
Title EnviroAtlas - Precipitation 1950 - 2099 for the Conterminous United States
publication Date
2016-05-31
cited responsible party
-
publisher
organisation Name
U.S. EPA Office of Research & Development (ORD) - National Exposure Research Laboratory (NERL)
Contact information
Address
, Research Triangle Park, NC
cited responsible party
-
originator
organisation Name
US Environmental Protection Agency (US EPA)
The purpose of the EnviroAtlas Future Scenarios project is to make climate change projections more accessible to a larger
interdisciplinary audience by providing tools to visualize and analyze recent, high spatial resolution climate projections.
Downscaled climate models allow the user to see the potential magnitude of climate change at a finer, local scale. These projections,
along with the collection of layers available on EnviroAtlas, allow the user to view current ecosystem services data and conceivable
climate projections side-by-side. The overall goal of EnviroAtlas is to employ and develop the best available science to map
indicators of ecosystem services production, demand, and drivers for the nation.
Resource language:
eng; USA
Resource progress code:
completed
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
https://edg.epa.gov/EPA_Data_License.html
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
Use Constraints: None. Please check sources, scale, accuracy, currency and other available information. Please confirm that
you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Access Constraints: None
Constraints on resource usage:
Security Constraints
Classification
PUBLIC
Classification
System https://project-open-data.cio.gov/schema/#accessLevel
Handling
Description Standard Technical Controls
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-128.02839229
eastBoundLongitude
-65.20336449
northBoundLatitude
51.6773602
southBoundLatitude
22.7348894
Temporal Extent
1950-01-01
2099-12-31
Additional information on resource:
Climate projections are, by their nature, imperfect, and cannot be taken as absolute truth. Projections are intended to show
the likely response for a given set of circumstances, not actual predictions. Each RCP is based on a number of assumptions
about the future including land use, population, energy development, and socio-economic factors. Each RCP contains multiple
models based on varying levels of these assumptions. EnviroAtlas elected to use the RCP ensemble averages, the average of
all available models for each RCP. The RCP ensemble averages show each scenario's overall trends; however, model specific
variations are lost in the averaging process. It is important to note these projections are intended to show potential trends
and each RCP should be investigated for any further uses.
point of contact
-
pointOfContact
individual Name EnviroAtlas Coordinator
organisation Name
U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program,
EnviroAtlas
position Name Geospatial Data Owner
Contact information
Telephone
Voice (919) 541-3832
Address
109 T.W. Alexander Drive, Research Triangle Park, NC, 27709
descriptor Months of December from the previous calendar year, January, and February. For the year 2006, all RCP scenarios used the December
values from the 2005 Historic Run. For 1950, Winter included only Jan. and Feb.
sequence Identifier
name Winter
Band
descriptor Months March, April, and May
sequence Identifier
name Spring
Band
descriptor Months June, July, and August
sequence Identifier
name Summer
Band
descriptor Months September, October, November
sequence Identifier
name Fall
Band
descriptor Months January through December of the same calendar year
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description
Data were collected using methods that have unknown accuracy (EPA National Geospatial Data Policy [NGDP] Accuracy Tier 10).
For more information, please see EPA's NGDP at https://www.epa.gov/geospatial/epa-national-geospatial-data-policy
Completeness Commission
evaluation Method Description
Features represented have not been tested for completeness
Completeness Omission
evaluation Method Description
Features represented have not been tested for completeness
ConceptualConsistency
measure Description
Tests for integrity have not been performed.
organisation Name
U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program,
EnviroAtlas
position Name Geospatial Data Owner
Contact information
Telephone
Voice (919) 541-3832
Address
109 T.W. Alexander Drive, Research Triangle Park, NC, 27709
notes: This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata contact
-
pointOfContact
individual Name EnviroAtlas Coordinator
organisation Name
U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program,
EnviroAtlas
position Name Geospatial Data Owner
Contact information
Telephone
Voice (919) 541-3832
Address
109 T.W. Alexander Drive, Research Triangle Park, NC, 27709