Changes between Version 48 and Version 49 of ticket/370/TicketDetails


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Timestamp:
Aug 30, 2019 10:23:21 AM (2 years ago)
Author:
Jin Lee
Comment:

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  • ticket/370/TicketDetails

    v48 v49  
    162162== Useful information ==
    163163
    164 * Gridspacing for various resolutions of UM and PFM
     164* Following table has different gridspacing used for various resolutions of UM and PFM
    165165
    166 || Resolution || dx x dy at the equator (deg) || dx x dy at the equator (km) ||
    167 || || || ||
    168 || N108 || 1.6667 x 1.1111 || 185 x 124 ||
    169 || N216 || 0.8333 x 0.5556 || 93 x 62 ||
    170 || N320 || 0.5625 x 0.375  || 63 x 42 ||
    171 || N640 || 0.3515625 x 0.234375  || 39 x 26 ||
     166  || Resolution || dx x dy at the equator (deg) || dx x dy at the equator (km)
     167  ||
     168  || || || ||
     169  || N108 || 1.6667 x 1.1111 || 185 x 124 ||
     170  || N216 || 0.8333 x 0.5556 || 93 x 62 ||
     171  || N320 || 0.5625 x 0.375  || 63 x 42 ||
     172  || N640 || 0.3515625 x 0.234375  || 39 x 26 ||
     173
     174* The diammeter of the inner core of a typical tropical cyclone is ~300 km (Emanuel, 2018, Meteorological Monographs). So what is resolved for different resolutions is,
     175  * N320 - 5 gridpoints within the inner core, which means inner core is just resolved (using the "4 delta x" criterion)
     176  * N216 - 3 gridpoints within the inner core, which means inner core is not quite resolved
     177  * N108 - 2 gridpoints within the inner core, which means inner core is definitely not resolved
    172178
    173179== Things to do ==