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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 CHATHAM cruise from Madeira to Antigua started at 1772-07-07. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747882, 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). 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: 22.277895 * Median Longitude: -35.401579 * South-bound Latitude: 16.580000 * West-bound Longitude: -57.220000 * North-bound Latitude: 29.670000 * East-bound Longitude: -19.300000
Date/Time Start: 1772-07-07T00:00:00 * Date/Time End: 1772-07-27T16:00:00
Event(s):
Chatham_17720707_NMM_ADM/L/C126 * Latitude Start: 32.130000 * Longitude Start: -16.570000 * Latitude End: 17.000000 * Longitude End: -60.500000 * Date/Time Start: 1772-07-07T00:00:00 * Date/Time End: 1772-07-27T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Chatham (4th Rate Frigate), Voyage: Madeira - Antigua, 1st Observer: Charles Thompson (Captain), 2nd Observer: Thomas Dumeresy (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 50G 1055BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeGeocode
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 ClearnessClearness
15 GustsGusts1 If wind gusts are reported
16 Precipitation/RainRain1 If rain was reported
17 FogFog1 If fog was reported
18 Snow typeSnow1 If snow was reported
19 ThunderThunder1 If thunder and or lightning was reported
20 HailHail1 If hail was reported
21 Sea iceSea ice1 If sea-ice or icebergs were reported
22 IdentificationIDCLIWOC 2.1 line number
Size:
372 data points

Data

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


Date/Time

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 
Clearness
15 
Gusts
(1 If wind gusts are reported)
16 
Rain
(1 If rain was reported)
17 
Fog
(1 If fog was reported)
18 
Snow
(1 If snow was reported)
19 
Thunder
(1 If thunder and or lightning...)
20 
Hail
(1 If hail was reported)
21 
Sea ice
(1 If sea-ice or icebergs were...)
22 
ID
(CLIWOC 2.1 line number)
1772-07-07T00:0030.77451.0MADEIRA WESTNBE14S27W132.00NELIGHT AIRSCLOUDY000000041106
1772-07-08T13:0029.67-19.303451.0MADEIRA WESTN33E73S43W90.00-15NLIGHT AIRSCLOUDY000000041107
1772-07-09T13:0028.52-20.6289.3MADEIRA WESTN36E104S43W94.00-15NNEFRESH BREEZESCLEAR000000041108
1772-07-10T13:0027.67-21.97412.6MADEIRA WESTS43W88.00-15NEBELIGHT BREEZESCLOUDY000000041109
1772-07-11T13:0027.67-21.973452.6MADEIRA WESTS55W88.00-15NLIGHT BREEZESCLOUDY000000041110
1772-07-12T14:0026.63-23.64562.6MADEIRA WESTNE1/4N164S56W106.00-12ENELIGHT BREEZESCLOUDY000000041111
1772-07-13T14:0025.57-25.45566.7MADEIRA WESTNE204S57W117.00-12ENEMODERATECLOUDY000000041112
1772-07-14T14:0024.45-27.27336.7MADEIRA WESTN48E247S56W119.00-12NEMODERATECLOUDY000000041113
1772-07-15T14:0023.22-29.30359.3MADEIRA WESTN49E290S58W135.00-10NEFRESH BREEZESFAIR000000041114
1772-07-16T14:0022.28-31.70486.7MADEIRA WESTN52E338S66W136.00-8NEBEMODERATECLOUDY000000041115
1772-07-17T14:0021.62-33.67506.7MADEIRA WESTNEBE378S70W116.00-6NEBEMODERATECLOUDY000000041116
1772-07-18T14:0020.83-35.64739.3MADEIRA WESTN55E408S70W116.00-6EBNFRESH BREEZESCLEAR000000041117
1772-07-19T15:0020.28-38.14759.3MADEIRA WESTN57E458S74W148.00-4EBNFRESH BREEZESCLEAR000000041118
1772-07-20T15:0019.43-41.09759.3MADEIRA WESTN59E514S73W170.00-4EBNFRESH BREEZES AND SQUALLY000000041119
1772-07-21T15:0018.80-43.82779.3MADEIRA WESTN60E567S63W163.00-2EBNFRESH BREEZES AND SQUALLY000000041120
1772-07-22T15:0018.23-46.42779.3MADEIRA WESTEBN1/2E615S77W157.00-2EBNFRESH BREEZES AND SQUALLY000000041121
1772-07-23T15:0017.70-49.14796.7MADEIRA WESTN63E663S78W153.000EBNMODERATECLOUDY000000041122
1772-07-24T15:0017.25-51.32806.7ANTIGUA WESTW190S78W125.001EBNMODERATECLOUDY000000041123
1772-07-26T16:0016.88-54.95826.7ANTIGUA WESTS85W122S70W109.003EBNMODERATECLOUDY000000041124
1772-07-27T16:0016.58-57.22719.3ANTIGUA WESTN88W101W130.003ENEFRESH BREEZESCLEAR000000041125