Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013
ABSTRACT Using in-situ measured data from Qiyi Glacier, in combination with meteorological and run-off data from stations, a distributed degree-day model was developed for 631 investigated glaciers in the Beida River catchment to explore glacier mass change and its effect on streamflow. The results...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/jog.2017.13 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143017000132 |
id |
crcambridgeupr:10.1017/jog.2017.13 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/jog.2017.13 2024-03-03T08:46:09+00:00 Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 WANG, SHENG YAO, TANDONG TIAN, LIDE PU, JIANCHEN 2017 http://dx.doi.org/10.1017/jog.2017.13 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143017000132 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 63, issue 239, page 523-534 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2017 crcambridgeupr https://doi.org/10.1017/jog.2017.13 2024-02-08T08:31:03Z ABSTRACT Using in-situ measured data from Qiyi Glacier, in combination with meteorological and run-off data from stations, a distributed degree-day model was developed for 631 investigated glaciers in the Beida River catchment to explore glacier mass change and its effect on streamflow. The results showed that the average mass balance was −272 ± 67 mm w.e. a −1 , with an ice loss of 3.99 Gt during 1957–2013. Assuming a continuous linear trend, equilibrium line altitude rose by 242 m. Compared with morpho-topographic variables, climatic control is a more important factor affecting glacier change. Mass-balance sensitivity to air temperature was −239 mm w.e.°C −1 a −1 , while to precipitation it was +1.1 mm w.e. mm −1 a −1 . That is, a 210 mm increase in precipitation would be needed to compensate for the net mass loss induced by an air temperature increase of 1°C. Average annual glacier meltwater runoff was 1.51 × 10 8 m 3 from 1957 to 2013, accounting for 15.2% of surface runoff. The time series of meltwater runoff changed abruptly in 2000, and its contribution to surface runoff increased from 13.9 to 20.4%. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 63 239 523 534 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes WANG, SHENG YAO, TANDONG TIAN, LIDE PU, JIANCHEN Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
topic_facet |
Earth-Surface Processes |
description |
ABSTRACT Using in-situ measured data from Qiyi Glacier, in combination with meteorological and run-off data from stations, a distributed degree-day model was developed for 631 investigated glaciers in the Beida River catchment to explore glacier mass change and its effect on streamflow. The results showed that the average mass balance was −272 ± 67 mm w.e. a −1 , with an ice loss of 3.99 Gt during 1957–2013. Assuming a continuous linear trend, equilibrium line altitude rose by 242 m. Compared with morpho-topographic variables, climatic control is a more important factor affecting glacier change. Mass-balance sensitivity to air temperature was −239 mm w.e.°C −1 a −1 , while to precipitation it was +1.1 mm w.e. mm −1 a −1 . That is, a 210 mm increase in precipitation would be needed to compensate for the net mass loss induced by an air temperature increase of 1°C. Average annual glacier meltwater runoff was 1.51 × 10 8 m 3 from 1957 to 2013, accounting for 15.2% of surface runoff. The time series of meltwater runoff changed abruptly in 2000, and its contribution to surface runoff increased from 13.9 to 20.4%. |
format |
Article in Journal/Newspaper |
author |
WANG, SHENG YAO, TANDONG TIAN, LIDE PU, JIANCHEN |
author_facet |
WANG, SHENG YAO, TANDONG TIAN, LIDE PU, JIANCHEN |
author_sort |
WANG, SHENG |
title |
Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
title_short |
Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
title_full |
Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
title_fullStr |
Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
title_full_unstemmed |
Glacier mass variation and its effect on surface runoff in the Beida River catchment during 1957–2013 |
title_sort |
glacier mass variation and its effect on surface runoff in the beida river catchment during 1957–2013 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1017/jog.2017.13 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143017000132 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 63, issue 239, page 523-534 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2017.13 |
container_title |
Journal of Glaciology |
container_volume |
63 |
container_issue |
239 |
container_start_page |
523 |
op_container_end_page |
534 |
_version_ |
1792502107236990976 |