The Snowstorm Database is a collection of over 500 snowstorms dating back to 1900 and updated operationally. Only storms having
large areas of heavy snowfall (10-20 inches or greater) are included. The spatial extent includes the contiguous U.S. but
the most storms are in the eastern two thirds of the U.S. This is the only comprehensive data set with starting and ending
dates along with daily and total storm snowfall for large snowstorms from 1900 to the present. The data is archived in shapefile
format, one shapefile per storm. Shapefiles are a non-proprietary spatial format widely used in Geographical Information Systems
(GIS). Each shapefile contains daily and storm total snowfall for weather stations that were affected by the snowstorm. The
snowfall data comes from the Global Historical Climatological Network - Daily (GHCN-D).
Citation
Title Snowstorm Database
publication Date
2012-11-30
Edition
presentationForm
tableDigital
cited responsible party
-
publisher
organisation Name
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
cited responsible party
-
publisher
organisation Name
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
position Name User Engagement and Services Branch
Contact information
Telephone
Voice +1 (828) 271-4800
Fax +1 (828) 271-4876
Address
151 Patton AvenueVeach-Baley Federal Building, Room 468, Asheville, NC, 28801-5001
Country USA
HUMAN DIMENSIONS > NATURAL HAZARDS > METEOROLOGICAL HAZARDS
thesaurus name >
Title Global Change Master Directory (GCMD) Science and Services Keywords
revision Date
2015-08-04
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
Continent > North America > United States of America
thesaurus name >
Title Global Change Master Directory (GCMD) Location Keywords
revision Date
2015-04-07
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
Title Global Change Master Directory (GCMD) Location Keywords
revision Date
2015-04-07
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
Title Global Change Master Directory (GCMD) Instrument Keywords
revision Date
2015-10-02
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
Title Global Change Master Directory (GCMD) Platform Keywords
revision Date
2015-09-23
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
Title Global Change Master Directory (GCMD) Data Resolution Keywords
revision Date
2013-03-19
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
NOAA > National Oceanic & Atmospheric Administration
thesaurus name >
Title Global Change Master Directory (GCMD) Data Center Keywords
revision Date
2015-10-02
Edition Version 8.1
cited responsible party
-
publisher
organisation Name
NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science
and Exploration Directorate, Goddard Space Flight Center, NASA
other Citation Details
Cinergi keyword enhanced.File generated at Sat Dec 15 05:00:59 UTC 2018
purpose:
The original purpose of this data set was to provide input for the calculation of the Regional Snowfall Index (RSI) and the
Northeast Snowfall Impact Scale (NESIS), which are snowfall impact scales produced operationally by NCDC. This data has also
been used for analyzing trends of large snowstorms. The data can be used to make maps of historical snowstorms or for exploratory
data analysis of historical storms. Archiving the data as shapefiles allows external users such as emergency managers, researchers,
or anyone from snow sensitive entities to use the data directly in a GIS.
Browse image (thumbnail):
thumbnail file name:
file type: JPEG
thumbnail file description:
RSI map based on Snowstorm Database
Resource language:
eng; USA
Resource progress code:
onGoing
Resource Maintenance Information
maintenance or update frequency:
asNeeded
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
Use Constraints: Acknowledgement of the Data Originator when using the Data Item as a source is required.
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other constraints
NCEI cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure
of the data to function on a particular system. NCEI makes no warranty, expressed or implied, nor does the fact of distribution
constitute such a warranty. NCEI can only certify that the data it distributes are an authentic copy of the records that were
accepted for inclusion in the NCEI archives.
Spatial representation type code:
vector
Processing environment:
Windows, ArcGIS
Resource extent
Extent description
Geographic Extent
Geographic Bounding Box
extent Type Code
1
westBoundLongitude
-125.0
eastBoundLongitude
-66.0
northBoundLatitude
24.0
southBoundLatitude
50.0
Temporal Extent
ground condition
1900-01-01
Credits:
point of contact
-
pointOfContact
organisation Name
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
position Name Customer Engagement Branch
Contact information
Telephone
Voice 1-828-271-4800
Fax 1-828-271-4876
Address
151 Patton AvenueVeach-Baley Federal Building, Room 468, Asheville, NC, 28801-5001
Country USA
The Snowfall Database uses Global Historical Climatatology Network - Daily (GHCN-D), which has automated quality control built
into its processing. Once the starting and ending dates of a snowstorm are identified, daily data from GHCN-D is extracted
and brought into ArcGIS. At that point an analyst removes stations that are not part of the storm. Stations that were part
of the storm are checked to ensure that only days with snowfall are included in the snowfall total. The data is then checked
for any stations whose total snowfall is statistically different from it's neighbors using Local Moran's Index (see documentation).
Stations flagged from this test are checked for spatial consistency. It is assumed that all data is correct unless there is
enough evidence otherwise. The station may be kept or rejected, but not values are changed. The analyst then looks for any
stations that appear spatially inconsistent with its neighbors. Some of the factors that can make a station or stations appear
spatially in consistent are topography, lake effect snow, changes in temperature during the storm (wet vs. dry snow), and
spatial variability.
source
source description
Source dataset
source citation
Title Global Historical Climatology Network - Daily (GHCN-Daily), Version 2
publication Date
cited responsible party
-
originator
organisation Name
DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
cited responsible party
-
organisation Name
Contact information
Linkage for online resource
name Global Historical Climatology Network - Daily (GHCN-Daily), Version 2
Description Landing page for the newest release of Global Historical Climatology Network - Daily (GHCN-Daily), Version 3, including links
and other information.
Description NCEI home page with information, data access and contact information.
target application profile
Web Browser
hoursOfService 8:00 - 6:00 Eastern
Format
Format name XML
Format version
Standard ordering process
fees In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog
materials, and data distribution on physical media.
fees In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog
materials, and data distribution on physical media.
fees In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog
materials, and data distribution on physical media.