1 Summary of the balance years
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Preliminary mass balance values for the observation periods 2007/08 and 2008/09 have been reported now from about 100 glaciers worldwide. The mass balance statistics (Table 1) are calculated based on all reported values as well as on the data from the 30 reference glaciers in 9 mountain ranges (Table 2) with continuous observation series back to 1980. |
| The average mass balance of the glaciers with available long-term observation series around the world continues to be negative, with tentative figures indicating a further thickness reduction of 0.5 and 0.6 metres water equivalent (m w.e.) during the hydrological years 2008 and 2009, respectively. The new data continues the global trend in strong ice loss over the past few decades and brings the cumulative average thickness loss of the reference glaciers since 1980 at about 12.5 m w.e. (see Figures 1 and 2). All so far reported mass balance values for the two observation periods, given in Table 3, are tentative. Please note, the latest update of mass balance data 2008 and 2009 will be available with the publication of the ‘Glacier Mass Balance Bulletin’ (GMBB) No. 11by end of the year 2011!
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Table 1: Overview on mass balance data 2007/08 and 2008/09. Statistics are given for all reported glaciers (ALL) and for the available 'reference' glaciers with continuous long-term observation series (REF). |
| . |
2007/08
|
2008/09
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| . |
ALL
|
REF
|
ALL
|
REF
|
| Mean annual specific mass balance (mm w.e.) |
-353
|
-458
|
-798 | -587 |
| Standard deviation (mm w.e.) | 769 | 844 | 855 | 990 |
| Minimum value (mm w.e.) | -2340 | -2340 | -3900 | -3900 |
| Maximum value (mm w.e.) | 1580 | 1090 | 1070 | 590 |
| Number of positive/reported balances | 37/111 | 9/30 | 15/109 | 8/29 |
Table 2: Reference glaciers with continuous long-term observation series.
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| Figure 1: Mean annual mass balance of reference glaciers. pdf |
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| Figure 2: Mean cumulative mass balance of all reported glaciers (black line) and the reference glaciers (red line).pdf |
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For more detailed analysis of the global mass balance dataset, see the following selected publications and references therein: |
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Table 3: Reported preliminary mass balance values of the observation periods 2007/08 and 2008/09.
| Name | b08 |
b09
|
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| [mm w.e.] |
[mm w.e.]
|
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| Antarctica |
|
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| Bahia del Diablo | -530 | -255 |
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| Hurd | 190 | -390 |
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| Johnsons | 90 | -170 |
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| Argentina |
|
|||
| Martial Este | -56 |
-119
|
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| Austria |
|
|||
| Grosser Goldbergkees | -651 |
-542
|
||
| Hintereisferner | -1235 |
-918
|
||
| Jamtalferner | -981 |
-954
|
||
| Kesselwandferner | -444 |
-795
|
||
| Kleiner Fleisskees | -623 |
-403
|
||
| Pasterzenkees | -1421 |
-1120
|
||
| Sonnblickkees | -777 |
-254
|
||
| Vernagtferner | -843 |
-959
|
||
| Wurtenkees | -938 |
-584
|
||
| Bolivia |
|
|||
| Chacaltaya | gone |
gone
|
||
| Charquini sur | 161 |
-1616
|
||
| Zongo | 257 |
-631
|
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| Canada |
|
Baby Glacier | n.a. |
n.a.
|
| Devon Ice Cap NW | -394 |
-523
|
||
| Helm | -2100 |
n.a.
|
Meighen Ice Cap | -705 |
-676
|
| Peyto | -230 |
n.a.
|
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| Place | -470 |
n.a.
|
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| White | -778 |
-580
|
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| Chile |
|
|||
| Echaurren Norte | -540 |
80
|
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| China |
|
|||
| Urumqihe S.No.1 | -931 |
63
|
Colombia |
|
| La Conejera (Sta Isabel) | n.a. |
-2483
|
||
| Ritacuba Negro (La Cocuy) | n.a. |
n.a.
|
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| Ecuador |
|
|||
| Antizana 15 Alpha | 337 |
-75
|
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| France |
|
Argentìere | -1320 |
-2650
|
| Gebroulaz | -1050 |
-1970
|
Ossoue | -120 |
-1630
|
| Saint Sorlin | -1810 |
-2650
|
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| Sarennes | -2340 |
-3900
|
Greenland |
|
| Mittivakkat | -530 |
-1010
|
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| Freya glacier | -510 |
-466
|
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| Iceland |
|
|||
| Breidamjökull E. B. | n.a. |
n.a.
|
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| Bruarjökull | -503 |
-122
|
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| Dyngjujökull | -24 |
227
|
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| Eyabakkajökull | -1282 |
-507
|
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| Hofsjökull E | -790 |
-170
|
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| Hofsjökull N | -570 |
-350
|
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| Hofsjökull SW | -930 |
-350
|
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| Koeldukvislarjökull | -587 |
-134
|
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| Langjökull Southern Dome | -1842 |
-362
|
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| Tungnaarjökull | -1340 |
-809
|
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| India |
|
Chhota Shigri | n.a. |
n.a.
|
| Hamtah | n.a. |
n.a.
|
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| Italy |
|
|||
| Calderone | 275 |
401
|
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| Careser | -1952 |
-1268
|
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| Ciardoney | -1510 |
-490
|
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| Fontana Bianca | -1246 |
-622
|
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| Grand Etret | -1363 |
373
|
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| Lunga (Vedretta) | -1637 |
-1007
|
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| Malavalle | -900 |
-424
|
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| Pendente | -1484 |
-844
|
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| Rieserferner (Vedretta Occ. di Ries) | n.a. |
-612
|
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| Japan |
|
Hamaguri Yuki | 1580 |
-3188
|
| Kazakhstan |
|
|||
| Ts. Tuyuksuyskiy | -1357 |
206
|
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| New Zealand |
|
|||
| Brewster | -1653 |
-828
|
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| Norway |
|
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| Aalfotbreen | 680 |
-170
|
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| Austdalsbreeen | -70 |
-700
|
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| Austre Broeggerbreen | -127 |
-246
|
Blomstolskar |
1330
|
|
|
1070
|
| Breidalblikkbrea | -300 |
-520
|
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| Elisebreen | -172 |
n.a.
|
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| Engabreen | 310 |
-30
|
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| Graafjellsbreen | -140 |
-540
|
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| Graasubreen | 90 |
-280
|
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| Hansbreen | 150 |
-843
|
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| Hansebreen | 260 |
-970
|
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| Hardangerjoekulen | 450 |
150
|
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| Hellstugubreen | -60 |
-230
|
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| Irenebreen | -357 |
-630
|
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| Kongsvegen | 418 |
-78
|
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| Langfjordjoekul | -350 |
-1320
|
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| Midtre Lovenbreen | -9 |
-138
|
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| Nigardsbreen | 1090 |
240
|
||
| Rundvassbreen | n.a. |
n.a.
|
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| Storbreen | 110 |
-220
|
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| Storglombreen | n.a. |
n.a.
|
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| Svelgjabreen | 730 |
360
|
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| Waldemarbreen | -322 |
-649
|
Peru |
|
| Artesonraju | 471 |
-658
|
Yanamarey | 89 |
-525
|
| Russia |
|
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| Djankuat | 100 |
-120
|
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| Garabashi | -423 |
-371
|
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| Leviy Aktru | -810 |
470
|
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| Maliy Aktru | -870 |
590
|
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| No. 125 (Vodopadniy) | -720 |
380
|
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| Spain |
|
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| Maladeta | -38 |
-1415
|
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| Sweden |
|
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| Marmaglaciaeren | 120 |
-1390
|
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| Rabots Glaciaer | 350 |
-500
|
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| Riukojietna | -590 |
-720
|
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| Storglaciaeren | 580 |
-530
|
Tarfalaglaciaeren | -200 |
-1710
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| Switzerland |
|
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| Basodino | -1168 |
130
|
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| Findelen | -300 |
100
|
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| Gries | -1601 |
-883
|
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| Pizol | -731 |
-1220
|
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| Silvretta | -639 |
-1097
|
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| USA |
|
|||
| Columbia (2057) | 960 |
-900
|
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| Daniels | 400 |
-1350
|
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| Easton | 450 |
-2060
|
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| Emmons | -630 |
-1800
|
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| Foss | 180 |
-2020
|
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| Gulkana | -180 |
-720
|
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| Ice Worm | -100 |
-1560
|
Lemon Creek | 800 |
-700
|
| Lower Curtis | 120 |
-2150
|
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| Lynch | 510 |
-1820
|
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| Nisqually | -1080 |
-1640
|
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| Noisy Creek | -290 |
-1190
|
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| North Klawatti | -220 |
-1830
|
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| Rainbow | 650 |
-1980
|
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| Sandalee | -140 |
-650
|
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| Sholes | 200 |
-2680
|
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| Silver | 260 |
-1990
|
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| South Cascade | -300 |
-2000
|
Taku | 950 |
-310
|
| Wolverine | 880 |
-1780
|
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| Yawning | 480 |
-1620
|
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last change 06/10/2011, igr