MEX CLOUD CLIMO VALLARTA FINAL TALK
Nov 4, 2014Limited, anyone with the link
Photo: presented at Reunion Geofisica Mexicana in Puerto Vallarta, Mexico in November 2014.
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Photo: toggle with next few slides
Photo: winter mean cloudiness
Photo: summer mean cloudiness - toggle with previous slide to see seasonal change
Photo: annual mean cloudiness "disguises" the large seasonal change in cloudiness.  Remember that full resolution version of this has 250m pixels... roughly 12,000 pixels across this slide
Photo: changing scale slightly so I show the shaded relief map again to compare with the next few slides
Photo: this is a colorized version for more quantitative estimation of cloudiness than the previous grayscale images.  Notice that the most cloud-free region is over the northern Gulf of California
Photo: red areas are summer (May-Oct) max in cloudiness, blue areas are winter (Nov-Apr) max in cloudiness.  horizontal line is due to slightly different averaging data records in the available NASA MODIS sectors.
Photo: Central Mexico area summer AM cloudiness
Photo: Three hours later there is much more cloudiness over the higher terrain features, reflective the typical daily cycle of convective cloud development.
Photo: blue is areas of greater cloudiness at Aqua time than Terra time, red is the opposite... Stratus off west coast decreases during daytime while trade wind cumulus over Caribbean and Gulf of Mexico increase during daytime... this is an older slide prepared before we implemented a filtering procedure to reduce the diagonal lines that are a result of jpg artifacts and boundaries of data/no data on individual sectors.