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«»-
STRE P , E FP6, 4: . . SST3-CT-20 03-502845 (2004-2007 .)



· , . · , , . · , E-SAR, ERS1/2, SRTM, ENVISAT, R ADARSAT-1, 2, 3, ALOS CRYOSAT.



· , . · , , , . · .


()
·, - , , , . · .. · ­ (, ) ( , ), . · .


« »
JR_DIB ­ ­ , UCL - ­

LEGOS - ­ , GAMMA ­ - Gamma ­ , ENVEO - - , NPI SPRI - - , - . ­ ,

­ , NVE - ­ ,




· ·

· ·

=

4





R



: ERS 1/2 SAR ENVISAT ASAR RADARSAT Shuttle SRTM ESAR, JERS-1 : CORONA-KH-4A LANDSAT ASTER-VNIR MODIS NOAA-AVHRR : ERS RA1 ENVISAT RA2 ICESat GLAS



1. 2. 3. 4. 5. 6. NNZ SHO AID &K FJL JMI

7. SV 8. 9. PA UA






- 2004 - 2005 - 2006 - 2004 2004 / 2005

NPI NPI NPI NPI NVE NVE





/ 2004 JR_DIB 2005 JR_DIB / 2006 JR_DIB




. .


. . ERS-1/2


-. . ERS-1/2


. JERS-1.


. .
28/ 29 Ma r. 1996 10 m 1/ 2 Apr. 1996 -57 m

0

cm

30


ERS-1/2

0

m/year

300


·

Me DD ­ ­

lting (ab lat io n) is base d o n a de gree da y mo de l, req u ir in g da ily va lues of te mperatu re and F. temperatu re is extra po lated fr o m c limate stat io ns / nu mer ica l weat her mo de ls ( no t cr it ica l) DDFs ha ve bee n in vest igate d b y severa l a ut hor s for g lac iers in d ifferent e nv iro n me nt. DDF depe nd o n sn ow fac ies , sn ow age etc.

·

Accum ul atio n ­ depe nds o n prec ip ita t io n a nd w in d dr ift an d may s pat ia lly be h ig h ly var ia b le ­ inter po lat ion / extra po lat ion of prec ip itat io n is the ma in error s o urce ­ errors in est imat ion of prec ip itat io n ma y accu mu late t o large d ifferences between t he mo de l and t he ,,tr uth " o ver the w inter per iod (a co u p le of mo nt hs to ha lf a year) Sno w accu m ula tio n is the do min ant s o urce o f e rro r i n g lac ie r m as s bal ance mo de ling . A mo de l is pro po se d to co mbine s pati all y de taile d in fo rmat io n o n s no w / ice e x te nt in co mbi nat io n wit h a S WE b al ance mo de l fo r a n im p ro v e d es timatio n o f wi nte r s no w accu mul atio n.





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