Mellado-Cano, Javier; Barriopedro, David; García-Herrera, Ricardo; Trigo, Ricardo M (2019): Monthly wind directional indices based on ships logbooks observations, WI [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.906066, In supplement to: Mellado-Cano, J et al. (2020): New observational insights into the atmospheric circulation over the Euro-Atlantic sector since 1685. Climate Dynamics, 54(1-2), 823-841, https://doi.org/10.1007/s00382-019-05029-z
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Abstract:
SOURCES:
Daily data of wind direction over the English Channel based on direct marine observations derived from Royal Navy ships' logbooks (1685-1870) and ICOADS v3.0 (1750-2014) datasets.
DESCRIPTION:
The WI is the Directional Indices (DIs) that give a measure of the westerly flow. It is an instrumental-based monthly index defined as the proportion of westerly days per month (in % with respect to the total number of available days for each month) over the English Channel.
A westerly day is defined as a day with prevailing wind from the east (wind blowing from the [225, 315)N sector). When only one daily observation was available, the day was classified from the wind direction of that single observation. If several observations per day were available over the English Channel, a westerly wind day was said to occur when at least a percentage of 45% of the total number of observations of that day corresponded to westerly wind.
DATA:
WI: Westerly Index (% of days in a month with westerly wind direction with respect to the total number of available (i.e., non missing) days in the month)
No: Number of available days (i.e., with at least one wind observation) in a month (in % with respect to the total number of days in the month). Months with no wind direction observation at all in the full month are labeled as missing (-99.9)
IMPORTANT NOTE: Please, note that the WI is herein provided regardless the number of observations. Some months have a low number of observations (No < 50 %)
Coverage:
Median Latitude: 50.000000 * Median Longitude: -2.500000 * South-bound Latitude: 48.000000 * West-bound Longitude: -10.000000 * North-bound Latitude: 52.000000 * East-bound Longitude: 5.000000
Date/Time Start: 1685-01-01T00:00:00 * Date/Time End: 2014-12-01T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Mellado-Cano, Javier | Geocode | ||
| 2 | Westerly Index, wind direction | WI dd | % | Mellado-Cano, Javier | Calculated | |
| 3 | Number of available days | Days | % | Mellado-Cano, Javier |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
7920 data points
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