Development of a gridded meteorological dataset over Java island, Indonesia 1985-2014

作者：Yanto^*; Livneh Ben; Rajagopalan Balaji

来源：Scientific Data, 2017, 4(1): 170072.

DOI：10.1038/sdata.2017.72

We describe a gridded daily meteorology dataset consisting of precipitation, minimum and maximum temperature over Java Island, Indonesia at 0.125 degrees x 0.125 degrees (similar to 14 km) resolution spanning 30 years from 1985-2014. Importantly, this data set represents a marked improvement from existing gridded data sets over Java with higher spatial resolution, derived exclusively from ground-based observations unlike existing satellite or reanalysis-based products. Gap-infilling and gridding were performed via the Inverse Distance Weighting (IDW) interpolation method (radius, r, of 25 km and power of influence, a, of 3 as optimal parameters) restricted to only those stations including at least 3,650 days (similar to 10 years) of valid data. We employed MSWEP and CHIRPS rainfall products in the cross-validation. It shows that the gridded rainfall presented here produces the most reasonable performance. Visual inspection reveals an increasing performance of gridded precipitation from grid, watershed to island scale. The data set, stored in a network common data form (NetCDF), is intended to support watershed-scale and island-scale studies of short-term and long-term climate, hydrology and ecology.

• 出版日期2017-5-23