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Lake records and LGM climate in China

Chinese Science Bulletin 2000年第13期45卷 1158-1164页

作者： Ge Yu Bin Xue Sumin Wang Jian Liu Nanjing Inst Geog & Limnol Nanjing 210008 Peoples R China

Chinese lake status database has provided systematic geological records of much higher lake level and fresher water than today at the LGM from western China. This wet condition was significant contrast with very dry conditions in eastern China. Together with lake studies from Eurasian continents, there was a wet-condition belt from the Mediterranean and the Middle East, Central Asia to western China. Palaeoclimate simulations confirmed that the wet conditions in western China were produced by decrease of the evaporation.and increase of precipitation by positive anomaly of annual P-E of 70-95 mm/a between the LGM and today. The westerlies enhanced in the strength and shifted southwards-eastwards in the position, and the low thermal conditions in the Eurasian continent creating temperature 4-16℃ lower than today and relatively low evaporation. were the major two important climate conditions to yield cold-wet climates in western China.

关键词： LGM high lake level western China precipitation and evaporation.

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A remote sensing model for monitoring soil evaporation.based on differential thermal inertia and its validation

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Science China Earth Sciences 2003年第4期46卷 342-355页

作者：张仁华孙晓敏朱治林苏红波唐新斋 Institute of Geographical Science and Natural Resources Chinese Academy of Sciences

The presently applied remote sensing algorithms and approaches to monitor soil surface fluxes are reviewed at the beginning of this paper, and the bottleneck of the estimation of soil sur-face fluxes lies in the dependence on non remotely sensed parameters (NRSP). A soil surface evaporation.model based on differential thermal inertia, only using remotely sensed information, has thus been proposed after many experiments. The key of the model is to derive soil moisture availability by differential thermal inertia rather than local soil parameters such as soil properties and type. Bowen ratio is estimated by means of soil moisture availability instead of NRSP, such as temperature and wind velocity. Net radiation flux and apparent thermal inertia have been used for soil heat flux parameterization, therefore, the objective of evaporation.(latent heat flux) inversion for bare soil only by remotely sensed information can be realized. Two NOAA-AVHRR five-band images, taken at Shapotou northwest of China when soil surface temperature approximated to the highest and lowest of the region, were applied in combination with the ground surface information measured synchronously. The distribution of soil evaporation.in Shapotou could be determined. Model verification has been performed between the measured soil surface evaporation.and the corresponding calculated value of the images, and the result has proved model to be feasible. Fi-nally, the possible errors and further modifications when applying model to fulling vegetation can-opy have been discussed.

关键词： differential thermal inertia, relative residual thermal inertia (RSTI), Bowen ratio, soil surface evaporation.

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Chemical Composition of Some Saline Lakes in the Tuva Region(Russia)

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 82-83页

作者： Yulia KOPYLOVA Natalia GUSEVA Choyganmaa OYDUP Anastasia SHESTAKOVA Institute of Natural Resources Tomsk Polytechnic University Tuva Institute for Exploration of Natural Resources of the Siberian Branch of the RAS

1 Introduction Salt lakes are very interesting natural objects which can be found in different places in the *** is not an *** conditions are various in Russia,but the climate is not very *** Russia there are a lot of... 详细信息

关键词： saline lakes chemical composition Tuva region water-rock interaction microbiological processes evaporation.

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