Dataset for "Weakening of Indian Summer Monsoon Synoptic Activity in Response to Polar Sea Ice Melt Induced by Albedo Reduction in a Climate Model"
- 1. Centre for Atmospheric Sciences, Indian Institute of Technology Delhi, New Delhi 110016, India
- 2. Earth and Climate Sciences, Indian Institute of Science Education and Research Pune, Pune, India
- 3. Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO 80309-0311, USA
Description
The dataset is organized in to four ZIP folders as described below.
1. Low-Pressure System (LPS) tracks: This contains all tracks of monsoon LPS over India during June to September from the CAM5 experiments (CTRL and SIME). The years mentioned in CAM5 are model years and don’t have any resemblance with the actual calendar years. There are eight realizations each for CTRL and SIME. Each realization can be understood from the filenames (_L10, _PERT1, _PERT2, _PERT3, PERT4, _PERT5, _PERT6, and _PERT7). The CAM5 realizations are run for four annual cycles for first four realizations and two annual cycles for last four realizations. The LPS tracks are extracted from the daily sea level pressure data using an algorithm developed by Praveen et al. (2015) [Praveen, V., S. Sandeep, and R. S. Ajayamohan (2015) On the Relationship between Mean Monsoon Precipitation and Low Pressure Systems in Climate Model Simulations, J. Climate, 28(13), 5305 – 5324, 10.1175/JCLI-D-14-00415.1]
2. Precipitation (PRECT): This contains June – September mean total precipitation (convective + largescale) simulated by the CAM5 CTRL and SIME experiments. The data is averaged over four annual cycles of model runs for first four realizations and two annual cycles for last four realizations.
3. Zonal wind (U): This contains the June – September mean zonal wind data at 850 hPa level for all CAM5 experiments (CTRL and SIME). The data for each realization of CAM5 CTRL and SIME experiment are provided. The data is averaged over three annual cycles of model runs.
4. Meridional wind (V): The meridional wind data data at 850 hPa from CAM5 model simulations (similar to the zonal wind data)