id	keyword
esrj-36207	groundwater
esrj-36207	depth
esrj-36207	groundwater depth
esrj-36207	dry
esrj-36207	study
esrj-36207	seasons
esrj-36207	area
esrj-36207	kriging
esrj-36207	wells
esrj-36207	variability
esrj-36207	figure