Analysis of the main reasons for the change of evaporation volume in the Qinghai-Tibet Plateau.

The evaporation of evaporation dish is a comprehensive index that reflects the thermal environment of water.
over the past few decades, evaporation of evaporation dishes has shown a significant downward trend in many regions of the world, contrary to the assumption that climate patterns pre-set warming lead to an increase in potential evaporation, triggering a wave of academic research on the evaporation paradox.
the Qinghai-Tibet Plateau, known as the "Asian Water Tower", is the birthplace of many rivers, such as the Yangtze, Yellow, Lancang and Nujiang rivers.
with the warming of the climate, the ecological environment of the Qinghai-Tibet Plateau is also changing, especially the change of the hydrothermal environment is more remarkable, which is reflected in the rapid retreat of glaciers, the accelerated melting of permafrost and the serious degradation of vegetation.
changes in the hydrothermal environment directly affect the process of water production in the Qinghai-Tibet Plateau, which will have a profound impact on the climate system of the whole Qinghai-Tibet Plateau.
It is of great significance to study the trend and causes of evaporation of evaporation dishes in the Qinghai-Tibet Plateau to understand the effects of climate change and ecological environment in the region.
recently, shen Yanjun Research Group of the Institute of Genetics and Developmental Biology of the Chinese Academy of Sciences re-parametered the PenPan model according to the unique geographical environment of the Qinghai-Tibet Plateau, simulating the changes in evaporation of evaporation dishes over the past 42 years (1970-2011).
also used sensitivity analysis and contribution rate model, according to the change trend of evaporation volume of evaporation dish, from the qualitative and quantitative perspective of the main reasons for the change of evaporation of the Qinghai-Tibet Plateau.
study found that, unlike the decline in evaporation of evaporation dishes caused mainly by decreasing wind speed and relative humidity, the evaporation of evaporation dishes in the Qinghai-Tibet Plateau region was mainly affected by solar radiation.
different factors affecting the change of evaporation volume of evaporation dishes in different time intervals: between 1970 and 2001, the significant decrease in evaporation of the Qinghai-Tibet Plateau was mainly caused by the decrease of solar radiation and wind speed;
under the background of the periodic change of the global evaporation volume, studying the space-time change and the cause of evaporation of the Qinghai-Tibet Plateau will help to understand the mechanism of hydrothermal environment change in the "Asian Water Tower" area and its influence on the amount of water produced, and provide scientific reference for the decision-making of ecological environment protection in the Qinghai-Tibet Plateau.
related research published in the International Journal of Climatology, Ph.D. student Zhang Shuanggui is the first author of the paper, researcher Yanjun Shen is the author of the newsletter.
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