In this data set, we use DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing image to obtain the surface elevation changes of glacier in the center of glaciation through difference calculation. It only aims at the change of glacier surface elevation in the area of Mt. georgeri from 1968 to 2013, so it is not necessary to supplement and improve it, and fully open sharing is adopted. The dataset contains two bands, elevation changes 1968-2000 and elevationchange 2000-2013. Field measurement unit: meter (m). The data set is mainly extracted from remote sensing images and only represents the changes of glacier surface elevation at the time of remote sensing image acquisition. The time is 1968-2000 and 2000-2013.
collect time | 1968/01/01 - 2013/12/31 |
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collect place | Georgi peak |
data size | 47.5 MB |
data format | |
Data spatial resolution (/ M) | 30.0m |
Coordinate system | WGS84 |
This data set is mainly interpreted data. The main data sources are DEM of topographic map, SRTM (2000) and DEM extracted from remote sensing images.
Based on DEM of topographic maps, SRTM (2000) and DEM extracted from remote sensing images, the elevation change of glacier surface at the center of glaciation was obtained by difference calculation.
After checking the accuracy of DEM in different periods, we use the cosine relationship between slope aspect and elevation difference to carry out plane and elevation correction; then we use the relationship between maximum curvature and elevation difference to reduce the error caused by different resolutions, carry out registration and relative accuracy evaluation on the two periods of DEM, and get the glacier elevation changes in different periods.
# | number | name | type |
1 | 2013FY111400 |
# | Dataset title |
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# | title | file size |
1 | Data.rar | 47.5 MB |
2 | Document.rar | 14.7 kB |
Georgi peak ice elevation change DEM Georgi peak ice elevation change DEM
1968 1968 1969 1969 1970 1970 1971 1971 1972 1972 1973 1973 1974 1974 1975 1975 1976 1976 1977 1977 1978 1978 1979 1979 1980 1980 1981 1981 1982 1982 1983 1983 1984 1984 1985 1985 1986 1986 1987 1987 1988 1988 1989 1989 1990 1990 1991 1991 1992 1992 1993 1993 1994 1994 1995 1995 1996 1996 1997 1997 1998 1998 1999 1999 2000 2000 2001 2001 2002 2002 2003 2003 2004 2004 2005 2005 2006 2006 2007 2007 2008 2008 2009 2009 2010 2010 2011 2011 2012 2012 2013 2013 1968-2013
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