TITLE

Characteristics of evaporation over broadleaved Korean pine forest in Changbai Mountains, Northeast China during snow cover period in winter

AUTHOR(S)
LI Hui-dong; GUAN De-xin; WANG An-zhi; WU Jia-bing; JIN Chang-jie; SHI Ting-ting
PUB. DATE
April 2013
SOURCE
Yingyong Shengtai Xuebao;Apr2013, Vol. 24 Issue 4, p1039
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Based on the measurement data of water vapor flux by open-path eddy covariance system and of the micrometeorological factors in broad-leaved Korean pine forest in Changbai Mountains during the snow cover period from 2002 to 2005, this paper analyzed the dynamics of snow cover evaporation and the relationships between the evaporation and meteorological factors. The energy balanced ratio during the snow cover period was 79. 9%, and the latent heat flux accounted for 21-4% of net radiation. The diurnal variation of the evaporation presented a single-peak curve, and the evaporation rate during snow-melting period was higher than that during stable snow cover period. The half-hour evaporation presented liner relationship with net radiation and quadratic relationship with air temperature. The daily evaporation presented quadratic relationship with net radiation and exponential relationship with air temperature. The daily evaporation presented a dynamic trend of decreasing-stable-increasing, with the maximum at increasing stage and the minimum at stable stage. The maximum value of the daily evaporation was 0. 73 mm.d-1, and the minimum value was 0. 004 mm.d-1. During the snow cover periods of 2002-2003, 2003-2004 and 2004-2005, the annual evaporation was 27. 6, 25. 5, and 22. 9 mm, accounting for 37-9%, 19. 5%, and 30-0% of the precipitation in the same periods, respectively. The mean value of the daily evaporation in the three periods was 0. 17, 0. 19, and 0. 17 mm.d-1, respectively.
ACCESSION #
91993966

 

Related Articles

  • New Transfer Functions for Correcting Turbulent Water Vapour Fluxes. De Ligne, A.; Heinesch, B.; Aubinet, M. // Boundary-Layer Meteorology;Nov2010, Vol. 137 Issue 2, p205 

    We address the problem of the high-frequency correction of water vapour fluxes measured by eddy covariance with a closed-path infrared gas analyser (IRGA). Different transfer functions are compared and evaluated at a forested (Vielsalm, Belgium) and an agricultural (Lonzée, Belgium) site....

  • Size-dependent aerosol deposition velocities during BEARPEX'07. Vong, R. J.; Vong, I. J.; Vickers, D.; Covert, D. S. // Atmospheric Chemistry & Physics;2010, Vol. 10 Issue 12, p5749 

    Aerosol concentrations and 3-D winds were measured from 9 to 25 September 2007, above a pine forest in California. The measurements were combined using the eddy covariance (EC) technique to determine aerosol eddy fluxes as a function of particle diameter within the accumulation mode size range...

  • Boundary Intensification of Vertical Velocity in a β-Plane Basin. Pedlosky, Joseph; Spall, Michael A. // Journal of Physical Oceanography;Dec2005, Vol. 35 Issue 12, p2487 

    The buoyancy-driven circulation of simple two-layer models on the β plane is studied in order to examine the role of beta in determining the magnitude and structure of the vertical motions forced in response to surface heating and cooling. Both analytical and numerical approaches are used to...

  • Environmental Controls on the Surface Energy Budget over a Large Southern Inland Water in the United States: An Analysis of One-Year Eddy Covariance Flux Data. Liu, Heping; Zhang, Qianyu; Dowler, Gordon // Journal of Hydrometeorology;Dec2012, Vol. 13 Issue 6, p1893 

    The authors analyzed the surface energy fluxes that were measured by an eddy covariance system over the Ross Barnett Reservoir in Mississippi for a 1-yr period in 2008. On a monthly basis over the course of the year, positive vertical temperature and vapor pressure differences were observed,...

  • Simplified expressions for adjusting higher-order turbulent statistics obtained from open path gas analyzers. Detto, M.; Katul, G. G. // Boundary-Layer Meteorology;Jan2007, Vol. 122 Issue 1, p205 

    When density fluctuations of scalars such as CO2 are measured with open-path gas analyzers, the measured vertical turbulent flux must be adjusted to take into account fluctuations induced by ‘external effects’ such as temperature and water vapour. These adjustments are needed to...

  • Energy flux and energy balance closure of intensively managed Lei bamboo forest ecosystem. CHEN Yun-fei; JIANG Hong; ZHOU Guo-mo; SUN Cheng; CHEN Jian // Yingyong Shengtai Xuebao;Apr2013, Vol. 24 Issue 4, p1063 

    By using open-path eddy covariance system and meteorological instruments, an observation was conducted on the sensitive heat flux, latent heat flux, net radiation, soil heat flux, air temperature, ground temperature, and precipitation in a intensively managed Lei bamboo forest ecosystem in 2011,...

  • Parameterization of the Meridional Eddy Heat and Momentum Fluxes. Zou, Cheng-Zhi; Gal-Chen, Tzvi // Journal of the Atmospheric Sciences;6/15/99, Vol. 56 Issue 12, p1830 

    Investigates the use of classic eddy transfer theory to parameterize eddy heat and momentum fluxes. Derivation and results of the parameterization of the eddy heat flux; Parameterization of the eddy momentum flux; Discussion on the validation and limitations of the parameterization.

  • Eddy Covariance Measurements with Closed-Path Optical Humidity Sensors: A Feasible Concept? Peters, Gerhard; Fischer, Bernd; Munster, Hans // Journal of Atmospheric & Oceanic Technology;Apr2001, Vol. 18 Issue 4, p503 

    Presents information on a study which set up a closed-path optical analyzer to obtain long-term measurements of the turbulent water vapor flux by direct eddy covariance. Field measurement equipment; Turbulence sensors used; LI-6262 step response tests; Field data.

  • Enhancement of Evaporation from a Large Northern Lake by the Entrainment of Warm, Dry Air. Blanken, Peter D.; Rouse, Wayne R.; Schertzer, William M. // Journal of Hydrometeorology;Aug2003, Vol. 4 Issue 4, p680 

    The turbulent exchange of water vapor and heat were measured above Great Slave Lake, Northwest Territories, Canada, using the eddy covariance method for most of the ice-free period in 1997, 1998, and 1999. In all years, evaporation tended to occur in episodic pulses, lasting 52�78 h,...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics