The March 2014 issue of The Giovanni News is online. This issue has three feature articles:
Research Highlight: Petrova, Mitzeva, and Kotroni investigated the frequency of summertime lightning strikes in terms of three factors: the amount of rainfall they were associated with, their location (open ocean, coastal, or land), and the time of day they occurred. The coast and land exhibited larger variations in both lightning strike frequency during heavy rainfall and the time of day of highest strike rate compared to the open ocean. Giovanni was used to obtain 3-hourly precipitation rate estimates for this study.
The Hovmöller Diagram - Seeing Geographic Patterns in Earth Remote Sensing Data over Time: The Hovmöller diagram is a classic way to visualize the change in an environmental variable with time either latitudinally or longitudinally. A classic use of these diagrams is to examine the variability of sea surface temperature (SST) in the Pacific Ocean as El Niño and La Niña events occur.
Giovanni-4 Development Update - Image Download Capability: Giovanni-4 has added the capability to download images in TIFF format. In the case of these images, what you see on the screen is not always what you get in the full image, which can have considerably more information.
Read the April 2014 issue of The Giovanni News (PDF)
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