Monthly wind directional indices based on ships logbooks observations, EI

DOI

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 EI is the Directional Indices (DIs) that give a measure of the easterly flow. It is an instrumental-based monthly index defined as the proportion of easterly days per month (in % with respect to the total number of available days for each month) over the English Channel. A easterly day is defined as a day with prevailing wind from the east (wind blowing from the [45, 135)ºN 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 easterly wind day was said to occur when at least a percentage of 44% of the total number of observations of that day corresponded to westerly wind.DATA:EI: Easterly Index (% of days in a month with easterly 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 EI is herein provided regardless the number of observations. Some months have a low number of observations (No < 50 %)

Identifier
DOI https://doi.org/10.1594/PANGAEA.906063
Related Identifier https://doi.org/10.1594/PANGAEA.906067
Related Identifier https://doi.org/10.1007/s00382-019-05029-z
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.906063
Provenance
Creator Mellado-Cano, Javier ORCID logo; Barriopedro, David (ORCID: 0000-0001-6476-944X); García-Herrera, Ricardo; Trigo, Ricardo M ORCID logo
Publisher PANGAEA
Publication Year 2019
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 7920 data points
Discipline Earth System Research
Spatial Coverage (-10.000W, 48.000S, 5.000E, 52.000N); North Sea
Temporal Coverage Begin 1685-01-01T00:00:00Z
Temporal Coverage End 2014-12-01T00:00:00Z