Global_Future_PET_AI: Algorithm Code (Python) - Calculate PET_AI

<b>Code in Python for Calculating PET and Aridity Index for the Future_Global_AI_PET </b><b>Database, described below:</b>The <b>Global Aridity Index and Potential Evapotranspiration Database: CIMP_6 Future Projections (</b><b>Future_Global_AI_PET</b><b>v.1) </b>provides a high-resolution (30 arc-seconds) global raster dataset of average monthly and annual potential evapotransipation (PET) and aridity index (AI) for two historical (1960-1990; 1970-2000) and two future (2021-2040; 2041-2060) time periods for each of 25 CIMP6 Earth System Models across four emission scenarios (SSP: 126, 245, 370, 585).These geo-spatial datasets have been produced with the support of Euro-Mediterranean Center on Climate Change, IAFES Division; Centre for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Science; CIFOR-ICRAF China Program, World Agroforestry (CIFOR-ICRAF) and the National Biodiversity Future Center (NBFC).These datasets are provided for non-commercial use (under CC By-NC 4.0 License), in standard GeoTiff format, WGS84 Geographic Coordinate System, 30 arc seconds or ~ 1km at the equator, to support studies contributing to sustainable development, biodiversity and environmental conservation, poverty alleviation, and adaption to climate change, among other global, regional, national, and local concerns.The <b>Future_Global_AI_PET</b><b> </b><b>is available online from the</b><b> </b><b>Science Data Bank (ScienceDB)</b><b> </b><b>at:</b><b> </b>https://doi.org/10.57760/sciencedb.nbsdc.00086Previous versions of the Global Aridity Index and PET Database are available online here:https://figshare.com/articles/dataset/Global_Aridity_Index_and_Potential_Evapotranspiration_ET0_Climate_Database_v2/7504448/6