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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 TRYAL cruise from Antigua to Barbados started at 1754-10-16 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752538, 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: 17.600714 * Median Longitude: -59.155714 * South-bound Latitude: 13.220000 * West-bound Longitude: -62.130000 * North-bound Latitude: 20.170000 * East-bound Longitude: -57.190000
Date/Time Start: 1754-10-16T00:00:00 * Date/Time End: 1754-10-31T00:00:00
Event(s):
Tryal_17541016_NMM_ADM/L/T215 * Latitude Start: 17.000000 * Longitude Start: -60.500000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1754-10-16T00:00:00 * Date/Time End: 1754-10-31T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tryal (Sloop), Voyage: Antigua - Barbados, 1st Observer: Jonathan Falkingham (Captain), 2nd Observer: Charles Henley (1st Officer/Master), Company: Royal Navy, Other ship information: 14G 272BM
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 Current speed descriptionV descr
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Present weatherwwWeather description
17 Precipitation descriptionPrecip descr
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 IdentificationIDCLIWOC 2.1 line number
Size:
298 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 
V descr
15 
Wind force descr
(All reported wind forces on t...)
16 
ww
(Weather description)
17 
Precip descr
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
ID
(CLIWOC 2.1 line number)
1754-10-16T00:00456.7ST JOHNS HARBOURSSE1/2E4NE QTRMODERATESHOWERS OF RAIN1100000259590
1754-10-17T16:0018.53-62.13486.7BARBUDASSE3/4E14NNW3/4W42.003NE QTRMODERATESHOWERS OF RAIN1100000259591
1754-10-18T16:0018.85-61.9148BARBUDASBE19NE3/4S23.003NE QTR1ST PART MODERATE, MID AND LATTER SQUALLYSHOWERS OF RAIN1100000259592
1754-10-19T16:0018.95-61.144819.0BARBUDASSW3/4W24E1/4S43.003NE QTRFRESH GALES AND SQUALLYRAIN0100000259593
1754-10-20T16:0019.35-61.04486.7BARBUDASSW35N3/4E35.003NE QTR1ST FRESH GALES AND SQUALLY MID AND LATTER MORE MODERATERAIN0100000259594
1754-10-21T16:0020.17-60.091382.6BARBUDASW3/4S55NE3/4E67.003SE QTR1ST MODERATE, MID AND LATTER LITTLE WINDSMID AND LATTER FAIR0000000259595
1754-10-22T16:0020.17-59.58138BARBUDASW1/2S61E37.003SE QTRVARIABLEVARIABLE0000000259596
1754-10-23T16:0020.17-59.08273BARBUDASW1/4W67E28.003SE-WVARIABLEVARIABLE0000000259597
1754-10-24T16:0018.52-58.08228BARBUDAW3/4S71SSE3/4E116.003SW QTRMODERATE GALES IN THE 1ST, MID AND ALTTER SQUALLYMID AND LATTER RAINFIRST FAIR0100000259598
1754-10-25T16:0017.03-57.53229BARBUDAWBN82SBE3/4E97.004SW QTRSQUALLYRAIN0100000259599
1754-10-26T16:0016.07-57.19228BARBUDAW1/4N94SBE3/4E57.003WNW-SWSQUALLYHARD RAIN0100000259600
1754-10-27T16:0015.27-57.192282.6BARBUDANWBW102S53.003SW QTRLITTLE WINDS AND CALMLIGHTNINGRAIN0100100259601
1754-10-28T16:0015.56-57.192282.6BARBUDANWBW1/2W103N5.003SW QTRLITTLE WINDS AND CALMRAIN0100000259602
1754-10-29T16:0014.55-57.59492.6BARBUDANW1/4W102SSW3/4W53.004SEBE-NE5LIGHT BREEZESFAIR0000000259603
1754-10-30T16:0013.22-58.4436215.4BARBUDANWBN104SSW3/4W91.004CALM AND VARIABLE1ST PART SQUALLY, MID AND LATTER MODERATE GALES1ST PART RAINMID AND LATTER FAIR0100000259604
1754-10-31T00:003626.7AUSTINA POINT (BARBADOS)WBN21CALM AND VARIABLEMODERATERAINCLOUDY0100000259605