---
_id: '12653'
abstract:
- lang: eng
  text: 'Daily streamflow from stations close to five Swiss glaciers is analyzed for
    trends with the Mann-Kendall test. We consider a common period of record (1974–2004)
    and longer periods based on data availability. The trend statistical significance
    is tested on annual and seasonal bases. We also examine changes in precipitation,
    temperature, and snow cover characteristics. Highly glacierized basins show statistically
    significant positive trends in annual streamflow caused by increasing streamflow
    in spring and summer. Trends are more numerous and stronger at lower and mid than
    at the upper quantiles. The basin characterized by lower glacier coverage, conversely,
    does not exhibit consistently statistically significant trends. Changes in precipitation
    are not sufficient to explain the observed streamflow trends. Air temperature
    sees an increase in mean, minimum, and maximum values at all sites. Variations
    in the seasonal snow accumulation and ablation process are evident. Solid precipitation
    is decreasing at all sites and trends may be due to a shift from snowfall into
    rainfall. Mean snow depth is also decreasing, and its duration is getting shorter
    because of a decrease in solid precipitation and enhanced melting. Trend magnitude
    attenuates with longer time series. Contrasting trends are detected for different
    subperiods in the last 70 years: statistically significant negative trends are
    observed in the periods 1944–1974 and 1954–1984 for Aletschgletscher, in contrast
    with the results for the common period. These trends are explained by different
    rates of ice volume changes, and the sign of trends is clearly related to phases
    of positive or negative glacier mass balance.'
article_number: W10522
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
  full_name: Pellicciotti, Francesca
  id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
  last_name: Pellicciotti
  orcid: 0000-0002-5554-8087
- first_name: A.
  full_name: Bauder, A.
  last_name: Bauder
- first_name: M.
  full_name: Parola, M.
  last_name: Parola
citation:
  ama: Pellicciotti F, Bauder A, Parola M. Effect of glaciers on streamflow trends
    in the Swiss Alps. <i>Water Resources Research</i>. 2010;46(10). doi:<a href="https://doi.org/10.1029/2009wr009039">10.1029/2009wr009039</a>
  apa: Pellicciotti, F., Bauder, A., &#38; Parola, M. (2010). Effect of glaciers on
    streamflow trends in the Swiss Alps. <i>Water Resources Research</i>. American
    Geophysical Union. <a href="https://doi.org/10.1029/2009wr009039">https://doi.org/10.1029/2009wr009039</a>
  chicago: Pellicciotti, Francesca, A. Bauder, and M. Parola. “Effect of Glaciers
    on Streamflow Trends in the Swiss Alps.” <i>Water Resources Research</i>. American
    Geophysical Union, 2010. <a href="https://doi.org/10.1029/2009wr009039">https://doi.org/10.1029/2009wr009039</a>.
  ieee: F. Pellicciotti, A. Bauder, and M. Parola, “Effect of glaciers on streamflow
    trends in the Swiss Alps,” <i>Water Resources Research</i>, vol. 46, no. 10. American
    Geophysical Union, 2010.
  ista: Pellicciotti F, Bauder A, Parola M. 2010. Effect of glaciers on streamflow
    trends in the Swiss Alps. Water Resources Research. 46(10), W10522.
  mla: Pellicciotti, Francesca, et al. “Effect of Glaciers on Streamflow Trends in
    the Swiss Alps.” <i>Water Resources Research</i>, vol. 46, no. 10, W10522, American
    Geophysical Union, 2010, doi:<a href="https://doi.org/10.1029/2009wr009039">10.1029/2009wr009039</a>.
  short: F. Pellicciotti, A. Bauder, M. Parola, Water Resources Research 46 (2010).
date_created: 2023-02-20T08:18:27Z
date_published: 2010-10-01T00:00:00Z
date_updated: 2024-10-14T12:00:48Z
day: '01'
doi: 10.1029/2009wr009039
extern: '1'
intvolume: '        46'
issue: '10'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1029/2009WR009039
month: '10'
oa: 1
oa_version: Published Version
publication: Water Resources Research
publication_identifier:
  eissn:
  - 1944-7973
  issn:
  - 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effect of glaciers on streamflow trends in the Swiss Alps
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 46
year: '2010'
...