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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 BELLEISLE cruise from Porto Praya to Portsmouth started at 1777-09-20 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747620, 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: 41.694000 * Median Longitude: -20.708667 * South-bound Latitude: 37.100000 * West-bound Longitude: -34.350000 * North-bound Latitude: 46.850000 * East-bound Longitude: -7.720000
Date/Time Start: 1777-09-20T14:00:00 * Date/Time End: 1777-10-04T13:00:00
Event(s):
Belle_Isle_17770920_NMM_ADM/L/B52 * Latitude Start: 14.860000 * Longitude Start: -23.500000 * Latitude End: 50.750000 * Longitude End: -0.980000 * Date/Time Start: 1777-09-20T00:00:00 * Date/Time End: 1777-10-04T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Belleisle (3rd Rate Frigate), Voyage: Porto Praya - Portsmouth, 1st Observer: John Brooks (Captain), 2nd Observer: Joseph Lind (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 64G 1494BM
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 Precipitation descriptionPrecip descr
15 State of the sea descriptionState sea 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:
286 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 
Precip descr
15 
State sea 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)
1777-09-20T14:0037.10-34.35329.3FLORESN48E73N16E57.00-13WNW, NWFRESH BREEZES AND SQUALLY000000027467
1777-09-21T14:0037.27-33.22326.7FLORESN39E58N79E55.00-13NEMODERATE BREEZESCLOUDY000000027468
1777-09-22T14:0038.15-33.97296.7FLORESN60E56N35E65.00-16NEMODERATE BREEZESHEAVY SWELL FROM NECLOUDY000000027469
1777-09-23T14:0038.67-33.752772.6FLORESN78E45N17E35.00-16NELITTLE WINDCLOUDY000000027470
1777-09-24T14:0040.23-30.952989.3CORVOS37E11N54E160.00-17NWFRESH BREEZES AND SQUALLYRAIN010000027471
1777-09-25T14:0041.05-27.432759.3CAPE FINISTERREN81E261N75E200.00-18WNWFRESH BREEZES AND SQUALLYRAIN010000027472
1777-09-26T14:0041.80-23.1029719.0CAPE FINISTERREN82E200N77E206.00-18NWFRESH GALES AND SQUALLY000000027473
1777-09-27T13:0042.67-19.5329419.0CAPE FINISTERREN86E146N73E172.00-21NWFRESH GALES AND SQUALLYRAIN010000027474
1777-09-28T13:0043.18-15.8327219.0CAPE FINISTERREE93N80E170.00-21WNWFRESH GALES AND SQUALLYRAIN010000027475
1777-09-29T13:0043.43-12.1022719.0CAPE FINISTERRES84E43N84E155.00-21WBNFRESH GALESCLOUDY000000027476
1777-09-30T13:0043.17-9.9821519.0CAPE FINISTERREE10S80E101.00-21SWBWFRESH GALESCLOUDY000000027477
1777-10-01T13:0043.22-9.782946.7CAPE FINISTERREEBS7N76E13.00-21NWFIRST AND MIDDLE PARTS STRONG GALES AND SQUALLY, LATTER MODERATEFIRST AND MIDDLE PARTS RAINLATTER HAZY010000027478
1777-10-02T13:0043.65-9.752946.7CAPE FINISTERRES3/4W9N8E27.00-21NWMODERATE BREEZES AND SQUALLYHEAVY RAIN010000027479
1777-10-03T13:0044.97-9.172499.3CAPE FINISTERRES11W40N13E83.00-21WFRESH BREEZESCLOUDY000000027480
1777-10-04T13:0046.85-7.7227219.0CAPE FINISTERRES16W81N18E127.00-21WNWFRESH GALESRAINCLOUDY010000027481