Abstract:
This data set contains annual freezing and thawing indices for each year from 1901 to 2002 on the 25 km resolution Equal-Area Scalable Earth Grid (EASE-Grid). Annual freezing and thawing indices are defined as the cumulative number of degree-days when air temperatures are below and above 0 degrees C. The values were calculated based upon the monthly mean air temperature from the 1901-2002, 0.5 deg. global land temperatures from the University of East Anglia Climate Research Unit (Mitchell and Jones, 2005). Two ASCII files are available for each year for the freezing and thawing indices, respectively. Each file is approximately 5.5 MB in size. In addition, there is one 10.4 MB ASCII file defining the latitude and longitude coordinates for each grid point. The data set is available in compressed form via FTP.
Dataset Originator/Creator:
T. Zhang, O. W. Frauenfeld, James McCreight, Roger Barry
Dataset Title:
Northern hemisphere EASE-Grid annual freezing and thawing indices, 1901 - 2002
Dataset Release Date:
2005-12-01
Dataset Release Place:
Boulder, CO
Dataset Publisher:
National Snow and Ice Data Center/World Data Center for Glaciology, Boulder, CO
Online Resource:
http://nsidc.org/data/ggd649.html
Name:
NSIDC
USER SERVICES Phone:
+1 (303) 492-6199
Fax:
+1 (303) 492-2468
Email:
nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
Name:
NSIDC FGDC
USER SERVICES Phone:
+1 (303) 492-6199
Fax:
+1 (303) 492-2468
Email:
nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
TINGJUN
ZHANG Role:
INVESTIGATOR
Phone:
303-492-6199
Fax:
303-492-2359
Email:
nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
University of Colorado
CIRES, 449 UCB City:
Boulder
Province or State:
Colorado
Postal Code:
80309-0449
Country:
USA
OLIVER
W.
FRAUENFELD Role:
INVESTIGATOR
Contact Address:
University of Colorado
National Snow and Ice Data Center/World Data Center for Glaciology
UCB 449 City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
R.
G.
BARRY Role:
INVESTIGATOR
Contact Address:
University of Colorado
National Snow and Ice Data Center/World Data Center for Glaciology
449 UCB City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
NSIDC
USER SERVICES Role:
TECHNICAL CONTACT
Phone:
+1 (303) 492-6199
Fax:
+1 (303) 492-2468
Email:
nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
Publications/References
Frauenfeld, O.W., T. Zhang, and J. L. McCreight. Submitted. Climatology and variability of the 20th century Northern Hemisphere freezing/thawing index. International Journal of Climatology.
Mitchell TD, Jones PD. 2005. An improved method of constructing a database of monthly climate observations and associated high-resolution grids. International Journal of Climatology 25, 693Â712.
Simmons A. J., P. D. Jones, V da Costa Bechtold, A. C. M. Beljaars, P. W. KÃ¥llberg, S. Saarinen, S. M. Uppala, P. Viterbo, and N. Wedi. 2004. Comparison of trends and variability in CRU, ERA-40, and NCEP/NCAR analyses of monthly-mean surface air temperature. ERA-40 Project Report Series No. 18, 38.
Willmott C.J. and K. Matsura. 2001. Terrestrial air temperature and precipitation: Monthly and annual time series (1950-1999). Newark, DE: Center for Climatic Research, Department of Geography, University of Delaware, Newark.
Creation and Review Dates
DIF Creation Date:
2005-11-03
Last DIF Revision Date:
2012-05-13
