Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 5.153
IF5.153
IF 5-year value: 5.460
IF 5-year
5.460
CiteScore value: 7.8
CiteScore
7.8
SNIP value: 1.623
SNIP1.623
IPP value: 4.91
IPP4.91
SJR value: 2.092
SJR2.092
Scimago H <br class='widget-line-break'>index value: 123
Scimago H
index
123
h5-index value: 65
h5-index65
Preprints
https://doi.org/10.5194/hess-2020-320
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-2020-320
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  13 Jul 2020

13 Jul 2020

Review status
This preprint is currently under review for the journal HESS.

Thermal regime, energy budget and lake evaporation at Paiku Co, a deep alpine lake in the central Himalayas

Yanbin Lei1,2, Tandong Yao1,2, Kun Yang1,2,3, Lazhu1, Yaoming Ma1,2,4, and Broxton W. Bird5 Yanbin Lei et al.
  • 1Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
  • 2CAS Center for Excellence in Tibetan Plateau Earth System, Beijing, 100101, China
  • 3Department of Earth System Science, Tsinghua University, Beijing 10084, China
  • 4University of Chinese Academy of Sciences, Beijing, China
  • 5Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, 46202, USA

Abstract. Endorheic lakes on the Tibetan Plateau (TP) experienced dramatic changes in area and volume during the past decades. However, the hydrological processes associated with lake dynamics are still less understood. In this study, lake evaporation and its impact on seasonal lake level changes at Paiku Co, central Himalayas, were investigated based on three years of in-situ observations of lake thermal structure and hydrometeorology (2015–2018). The results show that Paiku Co is a dimictic lake with thermal stratification at the water depth of 15–30 m between July and October. As a deep alpine lake, the large heat storage significantly influenced the seasonal pattern of heat flux over lake surface. Between April and July, when the lake gradually warmed, about 66.5% of the net radiation was consumed to heat lake water. Between October and January, when the lake cooled, heat released from lake water was about 3 times larger than the net radiation. There was ~5 month lag between the maximum lake evaporation and maximum net radiation at Paiku Co. Lake evaporation was estimated to be 975±82 mm between May and December, with low values in spring and early summer, and high values in autumn and early winter. The seasonal pattern of lake evaporation at Paiku Co significantly affected lake level seasonality, that is, a significant lake level decrease of 3.8 mm/day during the post-monsoon season while a slight decrease of 1.3 mm/day during the pre-monsoon season. This study may have implications for the different amplitudes of seasonal lake level variations between deep and shallow lakes.

Yanbin Lei et al.

Interactive discussion

Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Yanbin Lei et al.

Data sets

Lake water temperature, hydrometeorology and lake evaporation at Paiku Co in the central Himalayas (2015-2018) Yanbin Lei https://doi.org/10.11888/Hydro.tpdc.270287

Yanbin Lei et al.

Viewed

Total article views: 179 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
130 40 9 179 8 11
  • HTML: 130
  • PDF: 40
  • XML: 9
  • Total: 179
  • BibTeX: 8
  • EndNote: 11
Views and downloads (calculated since 13 Jul 2020)
Cumulative views and downloads (calculated since 13 Jul 2020)

Viewed (geographical distribution)

Total article views: 145 (including HTML, PDF, and XML) Thereof 145 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 25 Oct 2020
Publications Copernicus
Download
Short summary
Lake evaporation and its impact on seasonal lake level changes at Paiku Co, central Himalayas, were investigated. There was ~5 month lag between maximum lake evaporation and net radiation. The seasonal pattern of lake evaporation explains the significant lake level decrease during the post-monsoon season while a slight decrease during the pre-monsoon season. This study may have implications for the different amplitudes of lake level seasonality between deep and shallow lakes.
Lake evaporation and its impact on seasonal lake level changes at Paiku Co, central Himalayas,...
Citation