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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 FLORA cruise from Port Royal to Spithead started at 1786-07-29 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749310, 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: 40.492667 * Median Longitude: -50.689000 * South-bound Latitude: 26.430000 * West-bound Longitude: -79.670000 * North-bound Latitude: 49.600000 * East-bound Longitude: -7.830000
Date/Time Start: 1786-07-29T17:00:00 * Date/Time End: 1786-08-27T13:00:00
Event(s):
Flora_17860729_NMM_ADM/L/F7 * Latitude Start: 17.870000 * Longitude Start: -76.830000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1786-07-29T00:00:00 * Date/Time End: 1786-08-27T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Flora (5th Rate Frigate), Voyage: Port Royal - Spithead, 1st Observer: Hugh Lindsay (Captain), Company: Royal Navy, Other ship information: 36G 868BM
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:
573 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)
1786-07-29T17:0026.43-79.611196.7CAPE FLORIDASWBW17N22E109.006ESEMODERATECLOUDY000000095454
1786-07-30T17:0029.25-79.67102.6BERMUDAN81E263N14E164.004SW, SSW, N1/2ELIGHT BREEZESCLEAR000000095455
1786-07-31T17:0030.88-76.472059.3BERMUDAN83:30E200N59:30E174.002S, SW, SSWFRESH BREEZESFAIR000000095456
1786-08-01T17:0031.45-74.502271.0BERMUDAN83:30E167N63E300.002SE, SWLIGHT AIRSCLOUDY000000095457
1786-08-02T17:0033.12-72.532036.7BERMUDAS85E129N45E141.000SSWMODERATECLEAR000000095458
1786-08-03T17:0034.05-70.031566.7BERMUDAS70E93N66:30E140.00-2SSEMODERATECLEAR000000095459
1786-08-04T17:0034.88-67.751446.7BERMUDAS36E60N67:30E126.00-2SEBSLIGHT BREEZES, MODERATEFAIR, CLOUDY000000095460
1786-08-05T16:0035.80-66.671426.7BERMUDAN25E87N44E77.00-4S, SEBSMODERATECLEAR000000095461
1786-08-06T16:0036.05-64.671546.7CORVON82:10E533N81E93.00-4SE, SSEMODERATECLEAR000000095462
1786-08-07T16:0036.83-62.602211.0CORVON83:39E506N50E77.00-4WSW, SWLIGHT AIRSCLOUDY000000095463
1786-08-08T16:0037.37-61.472422.6CORVON28:24E475N73E99.00-6NW, NBW, WSWMODERATE, DARK CLOUDY WEATHER, SQUALLY, LIGHT BREEZESRAINCLEAR010000095464
1786-08-09T16:0038.00-59.382592.6CORVON85:35E437N69E105.00-11NNW, WLIGHT BREEZESCLEAR000000095465
1786-08-10T16:0038.70-58.58237CORVON87:10E425N40E55.00-11SBW, ESE, WSWLIGHT BREEZES, SQUALLYRAINCLEAR, HAZY010000095466
1786-08-11T16:0039.67-59.0710222.6CORVOE427N19W61.00-11EBS, ESEFRESH BREEZES, STRONG GALES AND SQUALLYCLOUDY000000095467
1786-08-12T16:0041.80-58.103042.6CORVOS84:25E408N15E228.00-11SE, NWSTRONG GALES AND SQUALLY, LIGHT WINDSCLEAR000000095468
1786-08-13T16:0042.17-56.451466.7CORVOS82:30E380N68E80.00-12ESE, NW, SSELIGHT BREEZES, NOON MODERATESWELL FROM ECLOUDY, NOON FAIR000000095469
1786-08-14T15:0042.45-52.073019.3CAPE RACEN5W86N85E195.00-14WNW, SW, WSW, NWFRESH BREEZES AND SQUALLYCLEAR000000095470
1786-08-15T15:0043.15-48.5727422.6CAPE RACEN39:30W610N75E163.00-19NW, WNWSTRONG GALES AND SQUALLY000000095471
1786-08-16T15:0044.27-45.152286.7LIZARDN77:50E555N69E160.00-20NW, NNW, NBW, WSWMODERATE BREEZESCLOUDY000000095472
1786-08-17T15:0044.80-41.483409.3LIZARDN78:08E501N75E168.00-20NBE, NFRESH BREEZESHAZY, CLOUDY000000095473
1786-08-18T15:0045.13-38.833519.3LIZARDN77:59E463N80E113.00-20NE, NBEFRESH BREEZESHAZY000000095474
1786-08-19T15:0045.20-38.223511.0LIZARDN77:54E453N81E25.00-20ENE, NBELIGHT BREEZES, LIGHT AIRS INCLINABLE TO CALMSCLOUDY000000095475
1786-08-20T14:0045.37-37.221371.0LIZARDN77:15E438N77E44.00-21SSECALM, LIGHT AIRSCLEAR000000095476
1786-08-21T14:0046.23-35.221252.6LIZARDN79:21E407N58E99.00-21SBE, SEBSLIGHT BREEZESRAIN010000095477
1786-08-22T14:0046.80-31.9313719.0LIZARDN79:54E359N76E141.00-21S, SSELIGHT BREEZES, FRESH GALESRAINCLOUDY010000095478
1786-08-23T14:0047.38-26.402039.3LIZARDN80:13E281N78:45E230.00-22SSW, SWFRESH BREEZESRAIN010000095479
1786-08-24T13:0049.07-21.8020019.0LIZARDN83:54E195N72:27E734.00-25SWFRESH GALESHAZY000000095480
1786-08-25T13:0049.33-16.582006.7LIZARDN83:06E127N85:25E200.00-25SWMODERATECLOUDY000000095481
1786-08-26T13:0049.55-11.822019.3LIZARDN81E72N86E183.00-24SWFRESH BREEZESRAINCLOUDY010000095482
1786-08-27T13:0049.60-7.832016.7LIZARDN78E34N89E168.00-24SWMODERATEHAZY000000095483