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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 England to Barbados started at 1754-07-20 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752537, 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: 23.731667 * Median Longitude: -32.041667 * South-bound Latitude: 13.020000 * West-bound Longitude: -58.650000 * North-bound Latitude: 42.770000 * East-bound Longitude: -10.930000
Date/Time Start: 1754-07-20T13:00:00 * Date/Time End: 1754-08-27T00:00:00
Event(s):
Tryal_17540720_NMM_ADM/L/T215 * Latitude Start: 51.530000 * Longitude Start: 1.920000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1754-07-20T00:00:00 * Date/Time End: 1754-08-27T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tryal (Sloop), Voyage: England - 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 Wind force descriptionWind force descrAll reported wind forces on this day
15 Present weatherwwWeather description
16 Precipitation descriptionPrecip descr
17 State of the sea descriptionState sea 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 CommentComment
27 IdentificationIDCLIWOC 2.1 line number
Size:
659 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 
State sea 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 
Comment
27 
ID
(CLIWOC 2.1 line number)
1754-07-20T13:0042.77-10.93282.6LIZARDNNE1/2E166SBW90.00-17NE QTRLITTLE WINDSFAIR0000000259554
1754-07-21T13:0041.13-13.13306.7LIZARDNNE3/4E208SWBS138.00-15NE QTRMODERATECLOSE0000000259555
1754-07-22T13:0039.28-13.383236.7LIZARDNNE3/4E244SBW118.00-15NBE-NNWMODERATECLOSE0000000a trivial correction was made in this observation259556
1754-07-23T13:0037.42-13.723115.4LIZARDNNE1/4E279S112.00-14NE QTRMODERATE GALESFAIR0000000259557
1754-07-24T13:0035.03-14.283119.0LIZARDNNE321SBW146.00-14NE QTRFIRST PART MODERATE, MID AND LATTER FRESH GALESFIRST PART CLOUDY, MID AND LATTER CLEAR0000000259558
1754-07-25T13:0032.63-14.423119.0LIZARDNBE1/4E373S1/4W145.00-14NE QTRFRESH GALESCLOUDY0000000259559
1754-07-26T13:0032.32-16.253219.0LIZARDNBE3/4E376W1/2S98.00-13NE QTRFIRST AND MID MODERATE, LATTER FRESH GALESFIRST AND MID HAZY, LATTER CLOUDY0000000259560
1754-07-27T13:0032.75-17.283119.0LIZARDNNE1/2E387NWBW1/2W59.00-14NE QTRFRESH GALESHAZY0000000259561
1754-07-28T00:004519.0MADEIRANBE6NE QTRFRESH GALESHAZY0000000259562
1754-07-29T00:00452.6MADEIRANNW7NE QTRLIGHT BREEZE0000000259563
1754-07-30T00:003622.61VARIABLELITTLE WINDS AND CALM0000000259564
1754-07-31T00:0010000000259565
1754-08-04T00:00232.6MADEIRANE31SW-NNELITTLE WINDS AND CALM0000000259566
1754-08-05T13:0031.15-18.643319.0MADEIRANE1/2N45SW1/2S138.00-12NW-SE, NE1ST PART LITTLE WINDS AND CALM, MID AND LATTER FRESH GALES0000000259567
1754-08-06T13:0029.55-20.123315.4MADEIRANE1/2N82SW1/2S120.00-12NE QTRMODERATE GALESCLOUDY0000000259568
1754-08-07T13:0028.12-21.773315.4MADEIRANE1/4N122SW124.00-12NE QTRMODERATE GALESCLOUDY0000000259569
1754-08-08T14:0026.25-23.873615.4MADEIRANE1/4N175SW1/4W152.00-9NE QTRMODERATE GALESCLOUDY0000000259570
1754-08-09T14:0024.72-25.673615.4MADEIRANE1/4N220SW140.00-9NE QTRMODERATE GALESCLOUDY0000000259571
1754-08-10T14:0023.37-27.743815.4MADEIRANE267SW3/4W142.00-7NE QTRMODERATE GALESCLOUDY0000000259572
1754-08-11T14:0021.93-30.144015.4MADEIRANE3/4E319SWBW159.00-5NE QTRMODERATE GALESCLOUDY0000000259573
1754-08-12T14:0020.98-32.074015.4MADEIRANE1/2E357SWBW1/2W132.00-5NE QTRMODERATE GALESCLOUDY0000000259574
1754-08-13T14:0020.18-34.0412015.4MADEIRANE1/2E390SWBW3/4W127.00-4ENE, SEBEMODERATE GALESCLOUDY0000000259575
1754-08-14T14:0019.05-36.354115.4MADEIRANE3/4E444SWBW1/2W149.00-4NE QTRMODERATE GALESCLEAR0000000259576
1754-08-15T15:0017.57-39.124319.0MADEIRANE3/4E504SWBW1/2W181.00-2NE QTR1ST MODERATE, MID SQUALLY, LATTER FRESH GALES1ST PART HAZY, LATTER FAIR0000000259577
1754-08-16T15:0016.50-41.39446.7MADEIRANE3/4E555SWBW3/4W157.00-1NE QTR1ST PART FRESH GALES, MID AND LATTER MODERATEMID AND LATTER SOME RAINCLOUDY0100000259578
1754-08-17T15:0015.62-42.3922415.4MADEIRANE3/4E582SW1/4W71.00-1NNE-WBN, SWMODERATE GALES, SOMETIMES CALMSSOMETIMES RAINGREAT SWELL FORM NEFAIR0100000259579
1754-08-18T15:0015.40-42.592262.6MADEIRANE3/4E584SW3/4S18.001SW QTRLITTLE WINDS AND CALM0000000259580
1754-08-19T15:0014.87-43.85461.0MADEIRANE3/4E610WSW79.001NE QTRLIGHT AIRS OF WINDSOME RAIN0100000259581
1754-08-20T15:0014.12-46.45461.0MADEIRANEBE658WBS1/2S156.001NE QTRLIGHT AIRS OF WINDSOME RAIN0100000259582
1754-08-21T15:0013.37-48.59160MADEIRANEBE702WSW130.002NNE-SSESQUALLYLIGHTNINGRAIN0100100259583
1754-08-22T15:0013.48-50.8913715.4MADEIRANEBE1/2E733W1/2N133.002SE QTRMODERATE GALESLIGHTNINGRAIN0100100259584
1754-08-23T15:0013.12-52.25812.6MADEIRANEBE1/4E765WBS3/4S83.002SEBS, EBNLIGHT BREEZESFAIR0000000259585
1754-08-24T16:0013.02-54.39486.7MADEIRANEBE1/4E802W1/4S124.003NE QTRMODERATERAIN AT TIMESCLOUDY0100000259586
1754-08-25T16:0013.08-56.89486.7MADEIRANEBE1/2E844W146.003NE QTRMODERATEFAIR0000000259587
1754-08-26T16:0013.17-58.65496.7MADEIRANEBE3/4E874W1/4N104.004NE QTRMODERATELIGHTNINGFAIR0000100259588
1754-08-27T00:00454.6NEEDHAM POINT (BARBADOS)W3NE QTRLIGHT GALES AND CALM0000000259589