NCSS request URL:
https://psl.noaa.gov/thredds/ncss/grid/Datasets/noaa.oisst.v2.derived/MHW_portal/oisst.mon.detrend.mhw.nc?north=90.000&west=-180.000&east=180.000&south=-90.000&horizStride=1&time_start=1991-01-01T00:00:00Z&time_end=2020-12-01T00:00:00Z&&&accept=netcdf3