Acta Geographica Sinica ›› 2014, Vol. 69 ›› Issue (11): 1661-1672.doi: 10.11821/dlxb201411007

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Spatial-temporal distribution of δD in atmospheric water vapor by using TES retrievals over middle to low latitudes in Asia

HUANG Yimin1, SUN Jia2, HUANG Yibin3, ZHANG Xinping4   

  1. 1. Resource Environment and Tourism Management Department, Hengyang Normal University, Hengyang 421008, Hunan, China;
    2. College of Tourism and Geography, Hainan Normal University, Haikou 571158, Hainan, China;
    3. Equipment Trial and Training Brigade, Academy of Armored Force Engineering, Beijing 100072, China;
    4. College of Resources and Environmental Sciences, Hunan Normal University, Changsha 410081, China
  • Received:2013-09-23 Revised:2014-03-21 Online:2014-11-20 Published:2014-11-20
  • Supported by:
    National Natural Science Foundation of China,No.41401019;No.41201398;Scientific ResearchStartup Project of Hengyang Normal University,No.14B45

Abstract: SSpatial-temporal distribution of water vapor δD, the correlations between water vapor δD and temperature, water vapor amount, and the relationship of water vapor δD with precipitation δD at mid-latitude to low latitudes over Asia are studied by using daily retrievals of H2O, HDO, temperature from TES on NASA's Aura spacecraft and data from GNIP. In terms of the spatial distribution, both precipitation and water vapor δD decrease with the increasing latitude, and there are two regions with the highest δD values over low latitudes, one in the east of Pacific warm pool and the other in western Asia, while there are two regions with the lowest δD values over the mid latitudes (i.e., the Tibetan Plateau and the western Pacific). As for the seasonality, water vapor δD is low in the cool season and high in the warm season. This periodical change is significant over the continent but insignificant over the ocean. The highest δD values occur in summer over mid-latitude continent, while the highest δD values comes out before the monsoon season over low-latitude continent (i.e., the India Peninsula and the Indo-China Peninsula). Referring to the correlations of water vapor δD with temperature and the amount of water vapor, both temperature and the amount of water vapor show positive correlations over the mid-latitude continent and the West Asia, while the Pacific warm pool shows positive and negative correlations for temperature and amount of water vapor with water vapor δD, respectively.

Key words: Asia, atmospheric water vapor, δD