Category 1
The major constraint in improving scientific understanding of the observed trends and variability of tropical cyclone activity has been a lack of accurate, quality controlled best track data for all tropical cyclone basins globally. Recently, the NOAA National Climatic Data Center developed the International Best Track Archive for Climate Stewardship (IBTrACS) project.The IBTrACS dataset was developed by Kenneth R. Knapp, Michael C. Kruk, and David H. Levinson, at the NOAA National Climatic Data Center.  Data as of February, 2019.
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