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García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2010): Meteorological observations during VANGUARD cruise from Torbay to Fort Royal started at 1794-03-22 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752651, In: Jones, Philip D; Wheeler, Dennis A; Können, Gunther P; Koek, Frits B; Prieto, Maria del Rosario; García-Herrera, Ricardo (2007): Climatological observations from ship logbooks between 1750 and 1854 (release 2.1) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.611088

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Related to:
García-Herrera, Ricardo; Können, Gunther P; Wheeler, Dennis A; Prieto, Maria del Rosario; Jones, Philip D; Koek, Frits B (2005): CLIWOC: A Climatological Database for the World's Oceans 1750–1854 (and 10 more publications about CLIWOC results in the same volume). Climatic Change, 73(1-2), 1-12ff, https://doi.org/10.1007/s10584-005-6952-6
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854
Coverage:
Median Latitude: 28.713750 * Median Longitude: -30.881500 * South-bound Latitude: 13.070000 * West-bound Longitude: -59.050000 * North-bound Latitude: 49.000000 * East-bound Longitude: -10.000000
Date/Time Start: 1794-03-22T13:00:00 * Date/Time End: 1794-04-30T16:00:00
Event(s):
Vanguard_17940322_NMM_ADM/L/V138 * Latitude Start: 50.437000 * Longitude Start: -3.528000 * Latitude End: 14.590000 * Longitude End: -61.070000 * Date/Time Start: 1794-03-22T00:00:00 * Date/Time End: 1794-04-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Vanguard (3rd Rate Frigate), Voyage: Torbay - Fort Royal, Martinique, 1st Observer: John Stanhope (Captain), 2nd Observer: James Cooke (1st Officer/Master), Company: Royal Navy, Other ship information: 74G 1799BM. LENGTH 168FT, BEAM 46FT 9IN, DEPTH 19FT 9IN. THREE MASTS, SQUARE RIGGED. 28 32PDR, 28 18PDR, 18 9PDR GUNS. COMPLEMENT 550. BUILt IN 1787 AT DEPTFORD, UK. CONVERTED TO PRISON SHIP IN 1812 AND TO A POWDER HULK IN 1814. BROKEN UP IN 1821.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4Wind directiondddegWind direction (from which the wind is blowing) in whole degrees from: 1-360; 361 = calm, 362 = variable. It is not clear from many logbook entries whether the wind direction has been corrected for the magnetic variation (or declination). To avoid any misunderstanding, all winds from reports that included a valid position in the period 1750-1854 were corrected. All other wind directions are given without being corrected.
5Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
6LandmarkLandmarkName of first landmark
7BearingBearingBearing of the first landmark
8Distance to landmarkDistancearbitrary unitsDistance to the first landmark
9CourseCourseCourse of the ship during the past 24 hours
10DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11DeclinationDecldegIt is generally accepted by the CLIWOC team that the wind directions, reported by the ships officers, were relative to the magnetic North direction. Navigators were well aware of the difference between the true and magnetic north direction, but the compasses (we assumed that the bearing-compasses were mostly used for determining the wind direction) were not always adjusted. Therefore the wind direction has to be corrected. The magnetic declination (or variation, as it is known on board ships) is given for the whole CLIWOC period (1750-1850) for every 5x5 degree square. The number was added to the wind direction to get the true wind direction.
12Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
13Wind force descriptionWind force descrAll reported wind forces on this day
14ClearnessClearness
15GustsGusts1 If wind gusts are reported
16Precipitation/RainRain1 If rain was reported
17FogFog1 If fog was reported
18Snow typeSnow1 If snow was reported
19ThunderThunder1 If thunder and or lightning was reported
20HailHail1 If hail was reported
21Sea iceSea ice1 If sea-ice or icebergs were reported
22IdentificationIDCLIWOC 2.1 line number
Size:
731 data points

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