全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

Analysis of Land Surface Energy and Water Cycle Changes in Naqu Region of Qinghai-Tibet Plateau during 2005-2016

DOI: 10.4236/oalib.1107670, PP. 1-15

Subject Areas: Atmospheric Sciences

Keywords: Qinghai Tibet Plateau, Radiation Budget, Energy Balance, Heat Storage Term, Energy Closure

Full-Text   Cite this paper   Add to My Lib

Abstract

In order to improve the integrity of the research on the thermal conditions of the Qinghai-Tibet Plateau and the plateau energy cycle, and strengthen the understanding of the climate change and water cycle in the Nagqu area, this article uses the 2005—provided by the Naqu Alpine Climate and Environmental Observation and Research Station of the Northwest Institute of Eco- Environmental Resources, Chinese Academy of Sciences. In 2016, the hour by hour high-resolution data set of atmospheric, soil and eddy observations analyzed the surface radiation budget, energy conversion, energy balance, and energy closure in the Naqu region of the Qinghai-Tibet Plateau. The following conclusions are obtained: compared with sunny days, the diurnal variation of the various components of surface energy in Nagqu in cloudy weather is very irregular, and the reflectivity of cloudy weather becomes larger. In cloudy weather, the thermal process between the surface and the atmosphere and deep soil is more violent than short-wave radiation. The albedo at each moment of the day in winter is greater than that in summer because of the unique surface characteristics of the plateau. Both summer and winter sensible heat flux and latent heat flux have the same diurnal variation trend as net radiation. The sensible heat flux and latent heat flux in summer are significantly higher than those in winter, but the latent heat flux changes more significantly with the seasons. When considering the soil heat storage term, the energy closure degree in summer is 0.301 and that in winter is 0.701. The energy closure degree in winter is significantly higher than that in summer.

Cite this paper

Wang, H. and Ma, J. (2021). Analysis of Land Surface Energy and Water Cycle Changes in Naqu Region of Qinghai-Tibet Plateau during 2005-2016. Open Access Library Journal, 8, e7670. doi: http://dx.doi.org/10.4236/oalib.1107670.

References

[1]  Zhang, Q. and Wang, S. (2008) A Study on Land Surface Processes and Their Observational Experiments on the Loess Plateau. Advances in Earth Sciences, No. 2, 167-173.
[2]  Qin, D.H. (2005) Assessment of Climate and Environmental Change in China (I): Climate and Environmental Change and Future Trends in China. Climate Change Research Progress, No. 1, 4-9.
[3]  Li, S.X., Nan, Z.T. and Zhao, L. (2002) Effects of Freezing-Thawing on the Energy Exchange in the Earth-Atmosphere System. Journal of Glaciology and Geocryology, No. 5, 506-511.
[4]  Li, S.X. and Wu, T.H. (2005) Relationship between Earth and Air Temperature in Qinghai-Tibet Plateau. Glaciology and Geocryology, No. 5, 627-632.
[5]  Ba, S., et al. (2012) Variation Trend Analysis of Snow Cover in Tibet Based on Multi-Source Data. Glaciology and Geocryology, 34, 1023-1030.
[6]  Kumar, et al. (2010) Impact of Surface Flux Formulations and Geostrophic Forcing on Large Eddy Simulations of Diurnal Atmospheric Boundary Layer Flow. Journal of Applied Meteorology and Climatology, 49, 1496-1516. https://doi.org/10.1175/2010JAMC2145.1
[7]  Halldin, S., et al. (1998) NOPEX—A Northern Hemisphere Climate Processes Land Surface Experiment. Journal of Hydrology, 212-213, 172-187. https://doi.org/10.1016/S0022-1694(98)00208-X
[8]  Wang, J.M. (1999) Experiments on Land Surface Processes and Earth-Atmosphere Interaction: From Heife to Imgrass and Gametibet/Tipex. Plateau Meteorology, No. 3, 280-294.
[9]  Lv, D.R. (2005) A Comprehensive Study of Soil-Vegetation-Atmosphere Interaction in Semi-Arid Stepe of Inner Mongolia, China. Acta Meteorologica Sinica, No. 5, 571-593.
[10]  Huang, R.H., Zhou, D.G., Chen, W., et al. (2013) Recent Progress in Studies of Air-Land Interaction over the Arid Area of Northwest China and Its Impact on Climate. Chinese Journal of Atmospheric Sciences, 37, 189-210. (In Chinese)
[11]  Zhao, P., Xu, X., Chen, F., et al. (2018) The Third Atmospheric Scientific Experiment for Understanding the Earth-Atmosphere Coupled System over the Tibetan Plateau and Its Effects. Bulletin of the American Meteorological Society, 99, 757-776. https://doi.org/10.1175/BAMS-D-16-0050.1
[12]  Chen, W., Zhu, D., Liu, H., et al. (2009) Land-Air Interaction over Arid/Semi-Arid Areas in China and Its Impact on the East Asian Summer Monsoon. Part I: Calibration of the Land Surface Model (BATS) Using Multicriteria Methods. Advances in Atmospheric Sciences, 26, Article No. 1088. https://doi.org/10.1007/s00376-009-8187-3
[13]  Liu, H.Z. (2006) Diurnal and Seasonal Variations of Water Vapor and Carbon Dioxide Fluxes at the Ground-Air Interface in Semiarid Regions. Atmospheric Sciences, No. 1, 108-118.
[14]  Zhang, Q. and Cao, X.Y. (2003) A Study on the Surface Heat and Radiation Balance Characteristics of Desert Gobi in Dunhuang Area. Chinese Journal of Atmospheric Sciences, No. 2, 245-254.
[15]  Qiao, J., Zhang, Q. and Zhang, J. (2008) Research Progress on the Parameterization of Land Surface Processes over Heterogeneous Overland Surfaces. Arid Meteorology, No. 1, 73-77 88.
[16]  Sen, L. and Zhong, Z. (2013) Improvement of Surface Flux Calculation: A Study Based on Measurements over Alpine Meadow in the Eastern Tibet Plateau in Summer. Chinese Physics B, 23, 029201. https://doi.org/10.1088/1674-1056/23/2/029201
[17]  Wen, X.H. (2011) Simulation of Radiation Budget of Jinta Oasis-Gobi by WRF Model. Journal of Solar Energy, 32, 346-353.
[18]  Xie, Y. (2019) A Preliminary Analysis of Near-Surface Radiation Budget of Alpine Wetland in the Source Region of the Yellow River. Journal of Solar Energy, 40, 1-10.
[19]  Zuo, D.K. (1965) Radiation Balance of the Earth-Atmosphere System and the Atmosphere in East Asia. Acta Geographica Sinica, No. 2, 100-112.
[20]  Li, H., Li, Y. and Li, H. (2012) Study on Land Surface Energy Imbalance and Land Surface Process Parameterization in the Semi-Arid Loess Plateau, China. Lanzhou University, Lanzhou.
[21]  Zhang, Q., Wang, S. and Wei, G.A. (2003) Study on the Land Surface Physical Parameters of the Gobi Area in Northwest China. Journal of Geophysics, No. 5, 616-623.
[22]  Wen, L.J. (2009) Asymmetric Observation of Surface Albedo in Arid Oasis. Solar Energy Journal, 30, 9533.
[23]  Qu, D., Ma, W.Q. and Zhaxi, D.Z. (2015) Comparison of Surface Albedo and MODIS Retrieval in Naqu Area, Northern Tibet. Remote Sensing Technology and Application, 30, 908-916.
[24]  Fujimaki, H., Shiozawa, S. and Inoue, M. (2003) Effect of Salty Crust on Soil Albedo. Agricultural and Forest Meteorology, 118, 125-135. https://doi.org/10.1016/S0168-1923(03)00110-2
[25]  Yang, K. and Wang, J.M. (2008) A Temperature Forecasting Correction Method for Calculating Surface Soil Heat Flux Based on Soil Temperature and Moisture Data. Science in China (Series D: Earth Sciences), No. 2, 243-250.

Full-Text


comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413