World Snow Cover (line), 1996 is a polyline theme representing rates or snowcover worldwide.
Purpose
For educational, non-commercial purposes. This dataset is appropriate for use in a GIS.
Supplemental Information
Snow cover is a sedimentary ice deposit formed from precipitation that is a loose and porous aggregate of crystals and crystal fragments. Snow cover typically accumulates andremains on the earth's surface when air temperatures near the ground are below freezing. The snow covers of the continents are influenced by geographical zones, relief, and atmospheric circulation.
Snow cover is a specific part of the global water exchange cycle that stores water for many months. It is important for vegetation and wildlife, and it greatly affects human life and economic activity.
The maps show the mean annual duration of snow cover. Snow cover duration is the period that begins with the establishment of snow cover and ends when it is completely melted. Snow cover is said to be stable in areas where snow lies for at least one month during more than a half of all winters. It is said to be stable of long duration where snow lies for four or more months each year. Permanent snow cover occurs where snow falls throughout the year and does not melt completely during the summer.
Temporal Extent
Currentness Reference
publication date
Time Instant
1996
Bounding Box
West
-180
East
180
North
85
South
-85
Theme Keyword
climatologyMeteorologyAtmosphere
Theme Keyword Thesaurus
ISO 19115 Topic Categories
Theme Keyword
Theme Keyword
Snow cover
Theme Keyword Thesaurus
None
Place Keyword
Earth
Place Keyword Thesaurus
Library of Congress Subject Headings
Temporal Keyword
1996
Temporal Keyword Thesaurus
None
Access Restrictions
For current Columbia affiliates only.
Use Restrictions
For educational, non-commercial use only.
Status
Complete
Maintenance and Update Frequency
None planned
Point of Contact
Contact Organization
ESRI
Delivery Point
380 New York Street
City
Redlands
State
California
Postal Code
92373-8100
Country
USA
Contact Telephone
909-793-2853
Contact Facsimile Telephone
909-793-5953
Contact Electronic Mail Address
info@esri.com
Hours of Service
7:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
Native Data Set Environment
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850
Data Quality Information
Lineage
Source
Originator
V.M. Kotlyakov
Title
Atlas snezhno-ledovykh resursov mira
Publication Information
Publication Place
Moscow
Publisher
Institute of Geography of Russian Academy of Sciences
Type of Source Media
paper
Source
Originator
Dolgushin, L.D. and G.B. Osipova
Publication Date
1989
Title
Ledniki
Publication Information
Publication Place
Mysl
Publisher
Moscow
Type of Source Media
paper
Source
Originator
Kotlyakov, V.M.
Publication Date
1968
Title
Snow cover of the Earth and glaciers
Publication Information
Publication Place
Leningrad
Publisher
Gidrometeoizdat
Type of Source Media
paper
Spatial Data Organization Information
Direct Spatial Reference Method
Vector
Point and Vector Object Information
SDTS Terms Description
SDTS Point and Vector Object Type
G-polygon
Point and Vector Object Count
3292
Spatial Reference Information
Horizontal Coordinate System Definition
Geographic
Latitude Resolution
0.000000
Longitude Resolution
0.000000
Geographic Coordinate Units
Decimal degrees
Geodetic Model
Horizontal Datum Name
D_Clarke_1866
Ellipsoid Name
Clarke 1866
Semi-major Axis
6378206.400000
Denominator of Flattening Ratio
294.978698
Entity and Attribute Information
Entity Type
Entity Type Label
snow_poly
Attributes
FID
Internal feature number. (Sequential unique whole numbers that are automatically generated.)
Definition Source
ESRI
Shape
Feature geometry. (Coordinates defining the features.)
Definition Source
ESRI
AREA
Area
PERIMETER
Perimeter
SASNOWDD_
South America
SASNOWDD_I
South America ID
LOW_S
The minimum mean annual duration of snow cover, in days.
HIGH_S
The maximum mean annual duration of snow cover, in days.
NASNOWDD_
North America
NASNOWDD_I
North America ID
EUSNOWDD_
Europe
EUSNOWDD_I
Europe ID
AUSNOWDD_
Australia
AUSNOWDD_I
Australia ID
ASSNOWDD_
Asia
ASSNOWDD_I
Asia ID
AFSNOWDD_
Africa
AFSNOWDD_I
Africa ID
Distribution Information
Format Name
geopackage
Distributor
ESRI; ESRI International Distributors
Name
Metadata Reference Information
Metadata Date
20090616
Metadata Contact
Contact Information
Contact Organization Primary
Contact Organization
Research Data Services (RDS), Columbia University Libraries
Contact Person
GIS/Metadata Librarian
Contact Address
Address
420 W. 118th St. 215 IAB, MC 3301
City
New York
State or Province
NY
Postal Code
10027
Country
USA
Contact Voice Telephone
(212) 854-6012
Contact Electronic Mail Address
data@library.columbia.edu
Hours of Service
7:00 a.m.-5:30 p.m. Pacific time, Monday-Friday
Metadata Standard Name
FGDC Content Standards for Digital Geospatial Metadata
