Articles | Volume 10, issue 2
Development and technical paper
13 Feb 2017
Development and technical paper |  | 13 Feb 2017

Source apportionment of atmospheric water over East Asia – a source tracer study in CAM5.1

Chen Pan, Bin Zhu, Jinhui Gao, and Hanqing Kang

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Cited articles

Baker, A. J., Sodemann, H., Baldini, J. U. L., Breitenbach, S. F. M., Johnson, K. R., van Hunen, J., and Zhang, P.: Seasonality of westerly moisture transport in the East Asian summer monsoon and its implications for interpreting precipitation δ18O, J. Geophys. Res.-Atmos., 120, 5850–5862,, 2015.
Bosilovich, M. G.: On the vertical distribution of local and remote sources of water for precipitation, Meteorol. Atmos. Phys., 80, 31–41,, 2002.
Bosilovich, M. G. and Schubert, S. D.: Water vapor tracers as diagnostics of the regional hydrologic cycle, J. Hydrometeorol., 3, 149–165,<0149:WVTADO>2.0.CO;2, 2002.
Bosilovich, M. G., Sud, Y. C., Schubert, S. D., and Walker, G. K.: Numerical simulation of the large-scale North American monsoon water sources, J. Geophys. Res.-Atmos., 108, 8614,, 2003.
Bosilovich, M. G., Robertson, F. R., and Chen, J.: Global energy and water budgets in MERRA, J. Climate, 24, 5721–5739,, 2011.
Short summary
This paper describes the implementation of the atmospheric water tracer (AWT) method in the NCAR Community Atmosphere Model version 5.1 (CAM5.1). Compared to other source apportionment methods, the AWT method was developed based on detailed physical parameterisations, and can therefore trace the behaviour of atmospheric water substances directly and exactly. Using this method, we quantitatively identify the dominant sources of precipitation and water vapour over East Asia.