Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006
North Cascade glacier annual balance measured on 10 glaciers from 1984–2006 yielded mean annual balance (b<sub><i>a</i></sub>) of −0.54 m/a, and −12.38 m cumulatively. This is a significant loss for glaciers that average 30–60 m in thic...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2008-01-01
|
| Series: | The Cryosphere |
| Online Access: | http://www.the-cryosphere.net/2/13/2008/tc-2-13-2008.pdf |
| id |
doaj-c36a43d52a7042f18023a489ba996b20 |
|---|---|
| record_format |
Article |
| spelling |
doaj-c36a43d52a7042f18023a489ba996b202020-11-24T21:28:29ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242008-01-01211321Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006M. S. PeltoNorth Cascade glacier annual balance measured on 10 glaciers from 1984–2006 yielded mean annual balance (b<sub><i>a</i></sub>) of −0.54 m/a, and −12.38 m cumulatively. This is a significant loss for glaciers that average 30–60 m in thickness, 20–40% of their entire volume. Two observed glaciers, Lewis Glacier and Spider Glacier, no longer exist. <br></br> The b<sub><i>a</i></sub> of North Cascade glaciers is reliably calculated, correlation coefficient 0.91, using 1 April snowpack water equivalent and ablation season temperature. Utilizing b<sub><i>a</i></sub> from 10 glaciers 1984–2006 and net balance (b<sub><i>n</i></sub>) from South Cascade 1960–2005, a set of forecast rules for glacier mass balance were derived utilizing October–April Pacific Decadal Oscillation and Multivariate El Nino Southern Oscillation index values. The forecast rules provide a correct assessment in 41 of the 46 years for South Cascade Glacier and 20 of 23 years for NCGCP glaciers. Glacier annual balance forecasting is an important step for summer water resource management in glacier runoff dominated stream systems. The forecast for North Cascade glaciers in 2007 is for a negative b<sub><i>a</i></sub>. http://www.the-cryosphere.net/2/13/2008/tc-2-13-2008.pdf |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
M. S. Pelto |
| spellingShingle |
M. S. Pelto Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 The Cryosphere |
| author_facet |
M. S. Pelto |
| author_sort |
M. S. Pelto |
| title |
Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 |
| title_short |
Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 |
| title_full |
Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 |
| title_fullStr |
Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 |
| title_full_unstemmed |
Glacier annual balance measurement, forecasting and climate correlations, North Cascades, Washington 1984–2006 |
| title_sort |
glacier annual balance measurement, forecasting and climate correlations, north cascades, washington 1984–2006 |
| publisher |
Copernicus Publications |
| series |
The Cryosphere |
| issn |
1994-0416 1994-0424 |
| publishDate |
2008-01-01 |
| description |
North Cascade glacier annual balance measured on 10 glaciers from 1984–2006 yielded mean annual balance (b<sub><i>a</i></sub>) of −0.54 m/a, and −12.38 m cumulatively. This is a significant loss for glaciers that average 30–60 m in thickness, 20–40% of their entire volume. Two observed glaciers, Lewis Glacier and Spider Glacier, no longer exist. <br></br> The b<sub><i>a</i></sub> of North Cascade glaciers is reliably calculated, correlation coefficient 0.91, using 1 April snowpack water equivalent and ablation season temperature. Utilizing b<sub><i>a</i></sub> from 10 glaciers 1984–2006 and net balance (b<sub><i>n</i></sub>) from South Cascade 1960–2005, a set of forecast rules for glacier mass balance were derived utilizing October–April Pacific Decadal Oscillation and Multivariate El Nino Southern Oscillation index values. The forecast rules provide a correct assessment in 41 of the 46 years for South Cascade Glacier and 20 of 23 years for NCGCP glaciers. Glacier annual balance forecasting is an important step for summer water resource management in glacier runoff dominated stream systems. The forecast for North Cascade glaciers in 2007 is for a negative b<sub><i>a</i></sub>. |
| url |
http://www.the-cryosphere.net/2/13/2008/tc-2-13-2008.pdf |
| work_keys_str_mv |
AT mspelto glacierannualbalancemeasurementforecastingandclimatecorrelationsnorthcascadeswashington1984ndash2006 |
| _version_ |
1725970199562158080 |