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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 HORNET cruise from Spithead to New York started at 1781-06-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749725, 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: 43.618500 * Median Longitude: -48.262000 * South-bound Latitude: 39.850000 * West-bound Longitude: -53.420000 * North-bound Latitude: 45.300000 * East-bound Longitude: -37.470000
Date/Time Start: 1781-06-08T14:00:00 * Date/Time End: 1781-06-28T16:00:00
Event(s):
Hornet_17810608_NMM_ADM/L/H43 * Latitude Start: 50.680000 * Longitude Start: -0.960000 * Latitude End: 40.670000 * Longitude End: -74.040000 * Date/Time Start: 1781-06-08T00:00:00 * Date/Time End: 1781-06-28T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Hornet (Sloop), Voyage: Spithead - New York, 1st Observer: Francis Tinsley (Captain), 2nd Observer: Henry Jenkins (1st Officer/Master), Company: Royal Navy, Other ship information: 14G 300BM
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 State of the sea descriptionState sea 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 CommentComment
26 IdentificationIDCLIWOC 2.1 line number
Size:
398 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 
State sea 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 
Comment
26 
ID
(CLIWOC 2.1 line number)
1781-06-08T14:0043.75-37.471941.0VIRGIN ROCKN74:12W174N72:12W30.00-20SWBSLIGHT AIRSFOGGY0010000113287
1781-06-09T15:0044.00-39.782176.7NEW YORKS80:00W489N66:10W38.00-19SWBWMODERATE BREEZESCLEAR0000000113288
1781-06-10T15:0044.82-42.772296.7VIRGIN ROCKN75W102N68:00W45.00-19WSWMODERATECLEAR0000000113289
1781-06-11T15:0045.06-45.272066.7CAPE RACEN78W76N57:12W43.00-19SWMODERATEFOGGY0010000113290
1781-06-12T15:0045.30-45.572299.3CAPE RACEN73:54W56N77:12W46.00-19SW, WSWFRESH BREEZESFOGGYRAIN AT TIMES0110000113291
1781-06-13T15:0043.95-45.202746.7VIRGIN ROCKN55W75S9:00E27.00-19WBS, WNWFRESH BREEZES, AM MODERATEDRY WEATHERHEAVY SEA FROM THE NW0000000113292
1781-06-14T15:0043.95-46.202746.7VIRGIN ROCKN49:00W67WBS E WNW14.00-19WBS, E, WNWMODERATECLEAR0000000113293
1781-06-15T15:0043.40-46.872516.7VIRGIN ROCKN40W67S42:0W15.00-19WBN, WMODERATECLEAR0000000113294
1781-06-16T15:0043.73-47.872526.7VIRGIN ROCKN27W65S75:16W15.00-18WBN, WMODERATECLEAR0000000113295
1781-06-17T15:0044.07-49.801966.7CAPE RACEN11W54N56W33.00-18SWBSMODERATECLOUDY0000000113296
1781-06-18T15:0044.16-49.8772CAPE RACEN10:11W52N84:10W4.00-18SE, EAM SQUALLYAM HEAVY RAIN AT TIMESHAZY CLOUDY WEATHER0100000113297
1781-06-19T15:0044.25-50.132526.7CAPE RACEN6:34W48N57:12W5.00-18WSW, WLIGHT AIRS, AM MODERATEFOGGY0010000113298
1781-06-20T15:0043.93-51.201736.7CAPE RACEN28E63S80:40W10.00-18SBWMODERATECLEAR0000000113299
1781-06-21T16:0043.40-52.7019726.8CAPE RACEN28E69SWBS9.00-17SWBSHARD GALES AND SQUALLY0000000113300
1781-06-22T16:0043.98-53.422196.7CAPE RACEN42E72N61:00W23.00-17SWBWMODERATE BREEZES0000000113301
1781-06-23T15:0044.57-52.472306.7CAPE RACEN52N62:0W25.00-18WSWMODERATE BREEZES0000000a trivial correction was made in this observation113302
1781-06-24T15:0043.60-51.47173CAPE RACEN15E63S38:10W24.00-18SBWMODERATE, AM SQUALLYCLOUDY0000000113303
1781-06-25T15:0042.00-52.082809.3CAPE RACEN42E70S88:12W35.00-13WNWFRESH BREEZES AND SQUALLY0000000113304
1781-06-26T15:0040.60-52.032686.7CAPE RACEN47:07W81S42:00E28.00-13WBNMODERATECLOUDY0000000113305
1781-06-27T16:0039.85-53.072026.7CAPE RACEN33:12W82S50:00E24.00-12SW, SWBSMODERATECLOUDY0000000a trivial correction was made in this observation113306
1781-06-28T16:00-54.333386.7CAPE RACEN16:40W79S75:20W24.00NWBW, NNWMODERATERAIN AT TIMESCLOUDY0100000113307