2024-03-28T21:38:51Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/GGD649.0012024-02-26T18:16:02Zfgdcv0_otherv0_all
GGD649.001Northern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 2002T. Zhang, O. W. Frauenfeld, James McCreight, Roger BarryNorthern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 20022005-11-22Boulder, Colorado USANSIDC: National Snow and Ice Data Center1false10.7265/2m0z-jd42https://doi.org/10.7265/2m0z-jd42GGD649InvestigatorTingjunZZhangnsidc@nsidc.org1-303-492-61991-303-492-2359UCB449BoulderColorado80309-0449USAInvestigatorOliverW.FrauenfeldUCB 449BoulderCO80309-0449USAInvestigatorR.G.Barry449 UCBBoulderCO80309-0449USATechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCEAtmosphereAtmospheric TemperatureAir Temperature AIR TEMPERATUREEARTH SCIENCEAtmosphereAtmospheric TemperatureDegree Days Freezing/Thawing IndexEARTH SCIENCEAtmosphereAtmospheric TemperatureSurface Air Temperature Climatology/Meteorology/AtmosphereGeoscientific InformationFreezing Degree DaysFreezing IndexThawing Degree-dayThawing Degree DaysThawing Index1901-01-012002-12-31090-180180Geographic RegionNorthern Hemisphere25 km25 km1 yearEnglishFGDCFrozen Ground Data Centerhttp://nsidc.org/fgdc/Data Center ContactFGDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAFTPASCIIFrauenfeld, 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, 693–712.
Simmons A. J., P. D. Jones, V da Costa Bechtold, A. C. M. Beljaars, P. W. Kållberg, 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.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.VIEW RELATED INFORMATIONhttps://doi.org/10.7265/2m0z-jd42DocumentationGET DATAftp://sidads.colorado.edu/pub/DATASETS/fgdc/ggd649_freeze_thaw_nh/FTPVIEW RELATED INFORMATIONhttp://nsidc.org/data/ease/index.htmlAll About EASE-GridCEOS IDN DIFVERSION 9.92005-11-222024-02-26NSIDCVersion SummaryNSIDCMinor VersionNSIDCCurrent Version1NSIDCLevel of ServiceBasicNSIDCFull Dataset Citation2005. <i>Northern Hemisphere EASE-Grid Annual Freezing and Thawing Indices, 1901 - 2002.</i> [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. <a href="https://doi.org/10.7265/2m0z-jd42">https://doi.org/10.7265/2m0z-jd42</a>. [Date Accessed].NSIDCRetiredfalseNSIDCRelated Servicesapplication/vnd.nasa.cmr.umm+jsonfalsejroebuckmmt_service_12556S1962622169-NSIDCV0NSIDCV05service2023-04-25T21:20:48.786Zftp://sidads.colorado.edu/NSIDCV0_FTPNOT PROVIDED1FTP File SystemDownload data via FTP using an FTP client, command line utility or a script, e.g., Pythonhttps://nsidc.org/data/user-resources/help-center/how-access-data-using-ftp-client-command-line-wget-or-pythonVIEW RELATED INFORMATIONFTP Access GuidePublicationURLUSER SERVICESNSIDC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESThis is the most current release of this service. Last updated date is unknown.SERVICE PROVIDERNational Snow and Ice Data CenterNSIDCNational Snow and Ice Data Center home pagehttps://nsidc.org/National Snow and Ice Data Center home page.https://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4ftp://sidads.colorado.edu/pub/DATASETS/fgdc/ggd649_freeze_thaw_nh/