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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 THETIS cruise from Kinsale to Halifax started at 1778-07-25 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752480, 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: 45.421765 * Median Longitude: -54.077647 * South-bound Latitude: 44.850000 * West-bound Longitude: -60.780000 * North-bound Latitude: 46.030000 * East-bound Longitude: -43.900000
Date/Time Start: 1778-07-25T15:00:00 * Date/Time End: 1778-08-11T16:00:00
Event(s):
Thetis_17780725_NMM_ADM/L/T93 * Latitude Start: 51.660000 * Longitude Start: -8.500000 * Latitude End: 43.400000 * Longitude End: -63.030000 * Date/Time Start: 1778-07-25T00:00:00 * Date/Time End: 1778-08-11T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Thetis (5th Rate Frigate), Voyage: Kinsale - Halifax, 1st Observer: John Gell (Captain), 2nd Observer: George Bayne (1st Officer/Master), Company: Royal Navy, Other ship information: 32G 677BM
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
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 CourseCourseCourse of the ship during the past 24 hours
11 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
12 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.
13 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.
14 Wind force descriptionWind force descrAll reported wind forces on this day
15 Present weatherwwWeather description
16 Precipitation descriptionPrecip descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 IdentificationIDCLIWOC 2.1 line number
Size:
317 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)

-
(1 If position is considered t...)
10 
Course
(Course of the ship during the...)
11 
Distance [arbitrary units]
(Distance travelled during the...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Wind force descr
(All reported wind forces on t...)
15 
ww
(Weather description)
16 
Precip descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
ID
(CLIWOC 2.1 line number)
1778-07-25T15:0045.42-43.906.7SAMBROS86:13W277S71W119.00-18MODERATEHAZY0000000254481
1778-07-26T15:0045.20-46.626.7SAMBROS86:39W240S82W114.00-18MODERATEHAZY0000000254482
1778-07-27T15:0045.27-47.956.7SAMBROS86:01W220N86W57.00-18MODERATEHAZY0000000254483
1778-07-28T15:0044.93-48.979.3SAMBROS87:36W207S64W43.00-18FRESH BREEZESRAIN0100000254484
1778-07-29T15:0045.15-49.639.3SAMBROS86:13W197N65W31.00-18FRESH BREEZESRAIN0100000254485
1778-07-30T15:0045.25-50.45173SABLES80W147N85W43.00-18S, SBWFIRST AND LATTER FAIR, MID THICK FOGGY0010000254486
1778-07-31T15:0045.87-51.655SABLES77W125N72W55.00-18SW, VARIABLE, NNEUNSETTLEDUNSETTLED0000000254487
1778-08-01T16:0045.33-54.3220815.4ISLE OF SABLES74:15W88S84W113.00-17SSE, SWMODERATE GALESFAIR0000000254488
1778-08-02T16:0045.60-55.752312.6ISLE OF SABLES65:42W67N73W60.00-17SSE, SWBS, WSWLIGHT BREEZESHAZY0000000254489
1778-08-03T16:0045.88-57.3319715.4ISLE OF SABLES50:45W49N77W68.00-17SWBSMODERATE GALESFOGGY0010000254490
1778-08-04T16:0046.03-58.1723315.4ISLE OF SABLES50W44N76W36.00-15WSWMODERATE GALESFOGGY0010000254491
1778-08-05T16:0045.40-57.6523315.4ISLE OF SABLES56:40W40S30E44.00-15WSWMODERATE GALESFOGGY0010000254492
1778-08-06T16:0045.57-58.3319915.4LOUISBOURGHNNE17N71W31.00-15SWBSMODERATE GALESFOGGY0010000254493
1778-08-07T16:0045.42-58.922556.7LOUISBOURGHN36E14S70W27.00-15SWBS, WPLEASANTFIRST FOGGY, LATTER PLEASANT0000000254494
1778-08-08T16:0045.75-59.422106.7N36W37.00-15WBS, SBW, SWMODERATEFAIR0000000254495
1778-08-09T00:002486.7CAPE PORTLANDN40W41SW, WSWMODERATEFAIR0000000254496
1778-08-10T16:0045.25-59.48244CAPE SAMBROS75:80W57S37E43.00-15WBS,FOGGY0010000254497
1778-08-11T16:0044.85-60.78345S66W60.00-15SW, NE, NFIRST FOGGY LATTER FAIR0010000254498