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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 SHOREHAM cruise from Antigua to Charles Town started at 1753-07-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747068, 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: 26.851000 * Median Longitude: -71.334000 * South-bound Latitude: 20.080000 * West-bound Longitude: -78.350000 * North-bound Latitude: 31.780000 * East-bound Longitude: -62.980000
Event(s):
Shoreham_17530713_NMM_ADM/L/S277 * Latitude Start: 17.000000 * Longitude Start: -60.500000 * Latitude End: 31.830000 * Longitude End: -77.920000 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Shoreham (6th Rate Frigate), Start of voyage: 1753-07-13, End of voyage: 1753-07-25, Voyage: Antigua - Charles Town, 1st Observer: Julian Legge (Captain), 2nd Observer: Charles Ellis (1st Officer/Master), Company: Royal Navy, Other ship information: 24G. 498BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Date/time startDate/time start
LATITUDELatitudeGeocode
LONGITUDELongitudeGeocode
Wind 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.
Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
CourseCourseCourse of the ship during the past 24 hours
10 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
11 DeclinationDecldegIt 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.
12 Wind direction descriptionWind dir descrAll reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
13 Wind force descriptionWind force descrAll reported wind forces on this day
14 Present weatherwwWeather description
15 Precipitation descriptionPrecip descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 IdentificationIDCLIWOC 2.1 line number
Size:
240 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/time start

Latitude

Longitude

dd [deg]
(Wind direction (from which th...)

ff [m/s]
(calculated from the descripti...)

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)

Distance [arbitrary units]
(Distance to the first landmark)

Course
(Course of the ship during the...)
10 
Distance [arbitrary units]
(Distance travelled during the...)
11 
Decl [deg]
(It is generally accepted by t...)
12 
Wind dir descr
(All reported wind directions ...)
13 
Wind force descr
(All reported wind forces on t...)
14 
ww
(Weather description)
15 
Precip descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
ID
(CLIWOC 2.1 line number)
1753-07-13T00:00686.7WEST END OF ANTIGUASEBS10ENEMODERATEFAIR0000000236196
1753-07-14T16:0020.08-62.98606.7ST BARTHOLEMEWSSSE1/2E46NNW1/2W140.004NEBEMODERATEFAIR0000000236197
1753-07-15T16:0022.27-64.9872ST BARTHOLEMEWSS35E100N40W172.004NE, ENEVARIABLE WEATHER0000000236198
1753-07-16T16:0023.75-66.7592ST BARTHOLEMEWSS39E143NW135.002ENE, EVARIABLE WEATHER0000000236199
1753-07-17T17:0025.27-68.781166.7ST BARTHOLEMEWSS42E190N49W150.003SEBE, EBS, ESEMODERATEFAIR0000000236200
1753-07-18T17:0026.80-70.78716.7ST BARTHOLEMEWSS43E236NW1/2W140.003E, ENEMODERATECLOUDY0000000236201
1753-07-19T17:0028.05-72.58706.7ST BARTHOLEMEWSSE280NW1/2W128.002E, ENEMODERATECLOUDY0000000236202
1753-07-20T17:0028.97-74.251936.7ST BARTHOLEMEWSS42E317NWBW115.002EBS, SBWMODERATEVARIABLE WEATHERFAIR0000000236203
1753-07-21T17:0030.37-76.61205CHARLES TOWNN48W69NWBN150.002SW, SSE, SW, SSWVARIABLE WEATHER0000000236204
1753-07-22T17:0031.17-77.28261CHARLES TOWNN50W37NW1/2N58.002SW, WBN, NWBN, WBSSQUALLYTHUNDER AND LIGHTNINGRAIN0100100236205
1753-07-23T17:0031.78-78.35227CHARLES TOWNN07W18N53W66.002SSE, SSW, SWVARIABLE WEATHER0000000236206
1753-07-24T00:00362CHARLES TOWNNW1/2S25VARIABLEVARIABLE WEATHER0000000236207
1753-07-25T00:00362CHARLES TOWNWNW12VARIABLEVARIABLE WEATHER0000000236208