AVHRR Nighttime Weekly and Monthly MCSST Data

The AVHRR MCSST data set contains nighttime weekly and monthly averaged Multi-Channel Sea Surface Temperature (MCSST) data derived from the NOAA Advanced Very High Resolution Radiometer (AVHRR). Data are available globally in Hierarchical Data Format (HDF) and given on a 0.5 degree grid. Each file contains 720 samples from east to west and 360 lines from north to south. Data currently exist from 1982 to 2000.

Data source is JPL PO.DAAC product 016, AVHRR Weekly Global Gridded MCSST, which is given on an equal-angle grid of 2048 pixels longitude by 1024 pixels latitude; therefore, the spatial resolution in pixels per degree of longitude and latitude is 2048/360 or approximately 5.689. AVHRR Weekly Global Gridded MCSST data are generated by the University of Miami, Rosenstiel School of Marine and Atmospheric Sciences.

Monthly MCSST data are combined from 4 or 5 weekly images, so they could not overlap exactly each day of the month. See also monthcomp_list.

Product Example: Nighttime Monthly-Averaged Interpolated MCSST

Files for weekly MCSST are named according the following convention:

snyyyyddd.hdf
where:
s = sea surface temperature
n = nighttime
yyyy = four digit year
ddd = three digit julian day marking the end of a week

and files for monthly MCSST data are named according to:

snyyyymm.hdf
where:
s = sea surface temperature
n = nighttime
yyyy = four digit year
mm = numbers 01- 12 stand for Jan. - Dec.

For the conversion of the modified julian date in yyyyddd to the date in yyyymmdd see also monthcomp_list.
In each data file, there are five data sets: valid, interpolated, flag, latitude and longitude.

Animation

Based on the night-time weekly averaged Multi-Channel Sea Surface Temperature (MCSST) data five animations are produced for a better visualization of the changing SST. The animations are developed for looking at the

  Contact: Dr. Kurt P. G√ľnther