A modelling investigation into lake-breeze development and convection triggering in the Nam Co Lake basin, Tibetan Plateau

Tobias Gerken, Tobias Biermann, Wolfgang Babel, Michael Herzog, Yaoming Ma, Thomas Foken, Hans Fi Graf

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

This paper uses the cloud resolving Active Tracer High-resolution Atmospheric Model coupled to the interactive surface model Hybrid in order to investigate the diurnal development of a lake-breeze system at the Nam Co Lake on the Tibetan Plateau. Simulations with several background wind speeds are conducted, and the interaction of the lake breeze with topography and background wind in triggering moist and deep convection is studied. The model is able to adequately simulate the systems most important dynamical features such as turbulent surface fluxes and the development of a lake breeze for the different wind conditions. We identify two different mechanisms for convection triggering that are dependent on the direction of the background wind: triggering over topography, when the background wind and the lake breeze have the same flow direction, and triggering due to convergence between the lake-breeze front and the background wind. Our research also suggests that precipitation measurements at the centre of the basins on the Tibetan Plateau are not representative for the basin as a whole as precipitation is expected to occur mainly in the vicinity of the topography.

Original languageEnglish (US)
Pages (from-to)149-167
Number of pages19
JournalTheoretical and Applied Climatology
Volume117
Issue number1
DOIs
StatePublished - Aug 25 2013

Fingerprint

convection
plateau
lake
modeling
topography
surface flux
basin
lake basin
wind velocity
tracer
simulation

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Gerken, Tobias ; Biermann, Tobias ; Babel, Wolfgang ; Herzog, Michael ; Ma, Yaoming ; Foken, Thomas ; Graf, Hans Fi. / A modelling investigation into lake-breeze development and convection triggering in the Nam Co Lake basin, Tibetan Plateau. In: Theoretical and Applied Climatology. 2013 ; Vol. 117, No. 1. pp. 149-167.
@article{b00b75d637b44021a4cfe8cfb9a90497,
title = "A modelling investigation into lake-breeze development and convection triggering in the Nam Co Lake basin, Tibetan Plateau",
abstract = "This paper uses the cloud resolving Active Tracer High-resolution Atmospheric Model coupled to the interactive surface model Hybrid in order to investigate the diurnal development of a lake-breeze system at the Nam Co Lake on the Tibetan Plateau. Simulations with several background wind speeds are conducted, and the interaction of the lake breeze with topography and background wind in triggering moist and deep convection is studied. The model is able to adequately simulate the systems most important dynamical features such as turbulent surface fluxes and the development of a lake breeze for the different wind conditions. We identify two different mechanisms for convection triggering that are dependent on the direction of the background wind: triggering over topography, when the background wind and the lake breeze have the same flow direction, and triggering due to convergence between the lake-breeze front and the background wind. Our research also suggests that precipitation measurements at the centre of the basins on the Tibetan Plateau are not representative for the basin as a whole as precipitation is expected to occur mainly in the vicinity of the topography.",
author = "Tobias Gerken and Tobias Biermann and Wolfgang Babel and Michael Herzog and Yaoming Ma and Thomas Foken and Graf, {Hans Fi}",
year = "2013",
month = "8",
day = "25",
doi = "10.1007/s00704-013-0987-9",
language = "English (US)",
volume = "117",
pages = "149--167",
journal = "Theorectical and Applied Climatology",
issn = "0177-798X",
publisher = "Springer Wien",
number = "1",

}

A modelling investigation into lake-breeze development and convection triggering in the Nam Co Lake basin, Tibetan Plateau. / Gerken, Tobias; Biermann, Tobias; Babel, Wolfgang; Herzog, Michael; Ma, Yaoming; Foken, Thomas; Graf, Hans Fi.

In: Theoretical and Applied Climatology, Vol. 117, No. 1, 25.08.2013, p. 149-167.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A modelling investigation into lake-breeze development and convection triggering in the Nam Co Lake basin, Tibetan Plateau

AU - Gerken, Tobias

AU - Biermann, Tobias

AU - Babel, Wolfgang

AU - Herzog, Michael

AU - Ma, Yaoming

AU - Foken, Thomas

AU - Graf, Hans Fi

PY - 2013/8/25

Y1 - 2013/8/25

N2 - This paper uses the cloud resolving Active Tracer High-resolution Atmospheric Model coupled to the interactive surface model Hybrid in order to investigate the diurnal development of a lake-breeze system at the Nam Co Lake on the Tibetan Plateau. Simulations with several background wind speeds are conducted, and the interaction of the lake breeze with topography and background wind in triggering moist and deep convection is studied. The model is able to adequately simulate the systems most important dynamical features such as turbulent surface fluxes and the development of a lake breeze for the different wind conditions. We identify two different mechanisms for convection triggering that are dependent on the direction of the background wind: triggering over topography, when the background wind and the lake breeze have the same flow direction, and triggering due to convergence between the lake-breeze front and the background wind. Our research also suggests that precipitation measurements at the centre of the basins on the Tibetan Plateau are not representative for the basin as a whole as precipitation is expected to occur mainly in the vicinity of the topography.

AB - This paper uses the cloud resolving Active Tracer High-resolution Atmospheric Model coupled to the interactive surface model Hybrid in order to investigate the diurnal development of a lake-breeze system at the Nam Co Lake on the Tibetan Plateau. Simulations with several background wind speeds are conducted, and the interaction of the lake breeze with topography and background wind in triggering moist and deep convection is studied. The model is able to adequately simulate the systems most important dynamical features such as turbulent surface fluxes and the development of a lake breeze for the different wind conditions. We identify two different mechanisms for convection triggering that are dependent on the direction of the background wind: triggering over topography, when the background wind and the lake breeze have the same flow direction, and triggering due to convergence between the lake-breeze front and the background wind. Our research also suggests that precipitation measurements at the centre of the basins on the Tibetan Plateau are not representative for the basin as a whole as precipitation is expected to occur mainly in the vicinity of the topography.

UR - http://www.scopus.com/inward/record.url?scp=85027957087&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027957087&partnerID=8YFLogxK

U2 - 10.1007/s00704-013-0987-9

DO - 10.1007/s00704-013-0987-9

M3 - Article

AN - SCOPUS:85027957087

VL - 117

SP - 149

EP - 167

JO - Theorectical and Applied Climatology

JF - Theorectical and Applied Climatology

SN - 0177-798X

IS - 1

ER -