Project Introduction
Brief introduction to the research method plan and prediction results for the project progress before starting modeling.
TOPIC
According to the impact of climate change caused by global warming, the relationship between the rising temperature of the surface and the impact of the soil will be simulated. Changes that appear mainly in urban areas and non-urban areas will be simulated through the NOAH LSM model and compared if there are differences between regions. The characteristics of the soil to be simulated are temperature change in the first of the four soil layers, change in soil moisture content.
METHOD
In order to consider changes according to the topography, the study target areas are classified into urban(Seoul) and rural(Gangwon) areas. The total soil moisture (SMC) and ground soil temperature (STC) changes for each soil layer when the temperature is changed in each terrain are analyzed. Through this, the vulnerability of soil by topography due to temperature rise is identified. It also examines how global warming affects the relationship between temperature and soil characteristics.
DATA
Using the land surface model (LSM) provided by NOAH, the temperature variable of the ground level corresponding to the period is manipulated for each classified terrain.
EXPECTED RESULT
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Temperature on the Korean Peninsula is expected to rise according to the IPCC scenario.
The average annual temperature on the Korean Peninsula in the late 21st century (2071-2100) is expected to increase by about 2.9℃ from the previous period (1981-2010) based on IPCC's RCP 4.5 scenario and 4.6℃ from the RCP 8.5 scenario.
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The increase in temperature is expected to reduce soil moisture.
It is predicted that the soil temperature will increase due to climate change, and the rate of increase in atmospheric temperature and soil temperature will be proportional. In addition, it is expected that soil moisture across Korea will decrease due to climate change. As temperatures increase due to climate change, evaporative acid is expected to become active as the temperature of the soil rises, and the amount of moisture in the soil is also expected to decrease.
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The degree of reduction in soil moisture is expected to vary depending on the characteristics of each topography.
It was expected that the degree of moisture reduction in the soil would be different depending on regional characteristics, but the urban area would have a higher temperature due to heat island phenomenon than in rural areas, and the initial amount of moisture would be small.
