Evaluation of RCA & RCA GUESS and estimation of vegetation-climate feedbacks over India for present climate

摘要: Popular summary Changes in climate modify the terrestrial vegetation distribution that turn affects system by altering balance of radiation, water, momentum, CO2 and other important atmospheric gases. This entire process is termed as vegetation-climate feedbacks. These feedbacks are studied regional earth model. In this study, RCA-GUESS, a model, applied over India to capture influence these on present climate. I also used RCA compared its results with GUESS. However, before applying models large area such India, it validate models. Therefore, aim study first assess performance GUESS RCA, against some observation datasets for period 1989-2005. Later, examines India. At end, future predictions will be made using RCA. The found was not accurately simulating average surface temperature precipitation summer well winter months. On hand, showed similar pattern deviations but irregularities model explained certain extent regions including dynamic cases, were even amplified. It suggested both require significant improvement their structural design correctly representing tropical region. The discussed reasons mountainous which noticed when different Europe South America. Since considerable uncertainty predicting variables, therefore, very hard deduce actual impact vice versa. would experience overall warming 1oC 2031 2050 more pronounced northern, western central regions. rise much 1.5 2oC. comparable findings studies. But, major shift properly captured.