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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 SEAHORSE cruise from York Factory to Gravesend started at 1792-09-29 [dataset]. Public Record Office, Kew, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752083, 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: 55.014118 * Median Longitude: -38.991765 * South-bound Latitude: 48.520000 * West-bound Longitude: -63.410000 * North-bound Latitude: 61.100000 * East-bound Longitude: -10.360000
Date/Time Start: 1792-09-29T16:00:00 * Date/Time End: 1792-10-15T13:00:00
Event(s):
Seahorse_17920929_PRO_BH1_1634 * Latitude Start: 61.320000 * Longitude Start: -64.020000 * Latitude End: 51.490000 * Longitude End: 1.170000 * Date/Time Start: 1792-09-29T00:00:00 * Date/Time End: 1792-10-15T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Seahorse, Voyage: York Factory - Gravesend, 1st Observer: Henry Hanwell (1st Officer/Master), Company: Hudson Bay Company
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 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:
277 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 
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)
1792-09-29T16:0061.10-63.412732.6RESOLUTIONEBN7S65E43.00-42W, SSW, S, SEBS, NWSTIFF GALES, SQUALLY, LIGHT BREEZESCLEAR0001000234482
1792-09-30T16:0060.62-62.7293S33E35.00-42NWBN, SEBS, ESE, SE, SEBE, SELIGHT BREEZES, CALM, FRESH BREEZES, STIFF BREEZES0001000234483
1792-10-01T16:0060.28-60.86362S67E60.00-43EBS, E, EBN, VARIABLESTIFF GALES, MODERATE, SQUALLYCLOUDY0001000234484
1792-10-02T16:0059.45-55.871322.6S71E158.00-43NE, NEBEFRESH GALES, STIFF GALESCLEAR THEN CLOUDY0000000234485
1792-10-03T16:0058.57-52.7428322.6S59E113.00-43N, NNW, NWBNFRESH GALES, STIFF GALESCLOUDY AND FINE0000000234486
1792-10-04T15:0057.03-49.5612422.6S58E118.00-34NWBN, WNW, WBN, S, SSEFRESH BREEZES, FRESH GALES, SQUALLY, STIFF GALESCLEAR AND CLOUDY0000000234487
1792-10-05T15:0056.75-47.842596.7S76E93.00-34SSE, SE, WBS, WNWSTIFF GALES, MODERATERAINCLOUDY THEN CLEAR0100000234488
1792-10-06T15:0056.35-45.121809.3S76E93.00-34WBS, SWBSMODERATE, FRESH BREEZERAINCLEAR0100000234489
1792-10-07T15:0055.90-41.822716.7S67E120.00-33W, WBN, NWBWCALM, LIGHT BREEZES, STIFF BREEZE, MODERATERAINCLOUDY THEN CLEAR0100000234490
1792-10-08T14:0054.88-36.9122622.6S69E180.00-33NW, WNW, W, WBSFRESH BREEZES, STIFF GALESDARKCLEAR THEN CLOUDY0000000234491
1792-10-09T14:0053.55-33.04305S69E159.00-33WBS, WBN, NW, NNWSTIFFF GALES, STIFF BREEZESRAINCLOUDY0100000234492
1792-10-10T14:0052.43-28.5429922.6S66E177.00-27NWBNSTIFF GALES AND SQUALLYCLOUDY0000000234493
1792-10-11T14:0051.27-23.9719822.6S68E184.00-27NW, WNW, W, WSW, SWFRESH GALES STRONG GALESRAINCLOUDY0100000234494
1792-10-12T13:0050.18-19.9724422.6S72E178.00-26WSTRONG GALES, SQUALLY, STIFF GALESRAIN0100000234495
1792-10-13T13:0049.13-15.8422222.6S70E168.00-26NWBW, NW, WNW, WSWFRESH GALES AND SQUALLY, STRONG GALESRAIN0100000234496
1792-10-14T13:0048.52-14.29255S77E63.00-26WSW, SWBW, WNW, WBNSTRONG GALES, HEAVY SQUALLSRAINCLEAR0100100234497
1792-10-15T13:0049.23-10.362686.7N82E156.00-25WBN, NW, WNWSTIFF GALES, MODERATECLEAR0000000234498