Kevin wrote:Sun Dec 15, 2019 3:18 pm
Data from these three ships will be used to evaluate how well the new 20CRv3 reanalysis is able to resolve weather conditions leading up to the deadly Yangtze floods of 1931, and to test the impact of individual ships' data on resolution after assimilation. These data are especially valuable for this purpose since they are not currently ingested by the reanalysis. It is unclear from the ship's histories provided by the Navy precisely where the ships were located during this period, but given the paucity of data in general, and the wide region pressure data can influence the reanalysis, we expect these data will be useful. A case in point is the Sitka Hurricane of 1880, where the addition of data from a single ship, the USCS schooner Yukon, had a huge impact. Here, the meteorological precursors to the great flood are likely spread over a long period and may be less dramatic than an individual storm, but we won't be able to say for sure until the data are tested. As seems to be the case with every ship we tackle, there will certainly be all kinds of new discoveries.
