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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 Plymouth to Basse Terre started at 1769-01-07 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752543, 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: 35.947812 * Median Longitude: -14.343437 * South-bound Latitude: 16.530000 * West-bound Longitude: -32.330000 * North-bound Latitude: 49.020000 * East-bound Longitude: -5.370000
Date/Time Start: 1769-01-07T12:00:00 * Date/Time End: 1769-02-20T14:00:00
Event(s):
Tryal_17690107_NMM_ADM/L/T218 * Latitude Start: 50.299000 * Longitude Start: -4.150000 * Latitude End: 15.970000 * Longitude End: -61.770000 * Date/Time Start: 1769-01-07T00:00:00 * Date/Time End: 1769-02-20T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tryal (Sloop (?)), Voyage: Plymouth - Basse Terre, 1st Observer: William Philipps (Captain), 2nd Observer: Samuel Rogers (2nd Officer/Lt. Author), 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:
636 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)
1769-01-07T12:0049.02-5.37246.7LIZARDN42E25S42W74.00-21SE, E, NEMODERATECLOUDY0000000a trivial correction was made in this observation259669
1769-01-08T12:0047.50-7.27246.7LIZARDN30E56S20W93.00-21NEMODERATECLOUDY0000000259670
1769-01-09T12:0046.35-7.472506.7LIZARDN23E77S7W69.00-20NW, WMODERATECLOUDY0000000259671
1769-01-10T12:0044.58-7.382959.3CAPE FINISTERS50W42S2E107.00-20W, WSW, NWFIRST PART MODERATE, MIDDLE FRESH GALES, LATTER FRESH BREEZESLATTER DRIZZLING RAINFIRST AND MIDDLE PARTS CLOUDY0100000259672
1769-01-11T12:0044.12-7.282399.3CAPE ORTUGALS79W6S9E27.00-20NW, W, WBSFIRST AND LATTER PARTS FRESH BREEZESMIDDLE DRIZZLING RAINFIRST AND LATTER PARTS CLOUDY0100000259673
1769-01-12T13:0045.05-7.552399.3CAPE FINISTERS38W49NBW60.00-20W, WBSFIRST AND LATTER PARTS FRESH BREEZESMIDDLE DRIZZLING RAINFIRST AND LATTER PARTS CLOUDY0100000259674
1769-01-13T13:0045.77-7.7329519.0CAPE FINISTERS28W59N10W45.00-20SW, W, NWFRESH GALES AND SQUALLY0000000259675
1769-01-14T13:0045.18-8.472056.7CAPE FINISTERS23W43S48W44.00-20NW, W, SWFIRST PART MODERATE GALES, MIDDLE LIGHT WINDS WITH CALMS, LATTER MODERATE BREEZESFIRST PART CLOUDY, LATTER FAIR0000000259676
1769-01-15T13:0045.35-9.9527322.6CAPE FINISTERS6E43N31W70.00-20SW, WNWFIRST PART FRESH BREEZES AND SQUALLY, MIDDLE AND LATTER STRONG GALESLARGE SWELL FROM W0000000259677
1769-01-16T13:0044.55-10.402059.3CAPE FINISTERS22E29S22W55.00-20NW, SWFIRST PART FRESH GALES AND HARD SQUALLS, MIDDLE MODERATE, LATTER FRESH BREEZESFIRST PART HAILMIDDLE FAIR, LATTER CLOUDY0000010259678
1769-01-17T13:0044.52-11.6317126.8CAPE FINISTERS48E35S87W50.00-20SBE, S, SBWHARD GALES AND SQUALLYLATTER PART DRIZZLING RAIN0100000259679
1769-01-18T13:0044.65-11.88252.6CAPE FINISTERS53E38N53W14.00-20NW, SW, NEFIRST PART HARD GALES AND SQUALLY, MIDDLE AND LATTER LIGHT BREEZES AND VARIABLELATTER HARD RAIN0100000259680
1769-01-19T13:0042.87-11.832056.7MADEIRAS23:28W221S2E110.00-20N-W, SWFIRST PART MODERATE GALES AND SQUALLY, MIDDLE AND LATTER MODERATEFIRST PART RAINMIDDLE AND LATTER CLOUDY0100000259681
1769-01-20T13:0043.07-11.882056.7CAPE FINISTERN85E31N9W13.00-20SW, NW, SWFIRST PART HARD GALES AND SQUALLY, MIDDLE AND LATTER MORE MODERATEFIRST PART RAIN0100000259682
1769-01-21T13:0042.48-12.431166.7CAPE FINISTERN71E42S37W47.00-19SW, SEFIRST PART HARD GALES AND SQUALLY, MIDDLE AND LATTER MORE MODERATEFIRST PART RAIN0100000259683
1769-01-22T13:0040.15-12.872522.6MADEIRAS27W167S3/4W140.00-18E, NE, WFIRST PART MODERATE GALES, MIDDLE FRESH BREEZES AND SQUALLY, LATTER LITTLE WINDMIDDLE RAINFIRST AND LATTER PART CLOUDY0100000259684
1769-01-23T13:0039.32-12.731626.7MADEIRAS30W151S7E51.00-18NW, SW, SFIRST AND LATTER PARTS MODERATE BREEZES, MIDDLE HARD GALES AND SQUALLYFIRST AND LATTER PARTS CLOUDY0000000259685
1769-01-24T13:0038.03-11.202069.3MADEIRAS44W146S42E107.00-19W-SWFRESH BREEZESCLOUDY0000000259686
1769-01-25T13:0038.28-11.3720622.6MADEIRAS42W149N33W16.00-19SWFIRST PART FRESH BREEZES, MIDDLE SQUALLY, LATTER STRONG GALESMIDDLE HARD RAINFIRST PART CLOUDY0100000259687
1769-01-26T13:0038.32-11.5520622.6MADEIRAS40W146N65W8.00-19SWSTRONG GALESRAINCLOUDY0100000259688
1769-01-27T13:0037.82-11.72262.6MADEIRAS42W138S16W30.00-19W, NELITTLE WIND WITH INTERMITTING CALMSCLEAR0000000259689
1769-01-28T13:0036.28-13.02286.7MADEIRASW102S35W108.00-17NEMODERATE BREEZESFAIR0000000259690
1769-01-29T13:0033.65-14.00286.7MADEIRAS72W59S17W166.00-17NEMODERATE BREEZESFAIR0000000259691
1769-01-30T13:0032.22-16.10299.3MADEIRAN64W27S50W136.00-16NEFRESH BREEZESHAZY0000000259692
1769-01-31T00:00459.3NORTHERNMOST END OF THE LARGEST DESERTNEBE1/2E31NEFRESH BREEZES, SQUALLY AT TIMESHAZY0000000259693
1769-02-13T13:0020.00-19.38679.3MADEIRANE360SWBW151.00-12EBNFRESH BREEZESLIGHTNING TO THE NWSQUALLS OF RAINFAIR1100100259694
1769-02-14T13:0018.77-21.023629.3MADEIRAN46E400S53W123.00-12E, SE, VARIABLEFRESH BREEZESFAIR0000000259695
1769-02-15T14:0018.12-22.65696.7MADEIRAN47E428S67W105.00-10EBNMODERATECLOUDY0000000259696
1769-02-16T14:0017.37-24.63596.7MADEIRAN49E468WSW126.00-9NE, ENEMODERATE WITH HARD SQUALLS OF WINDHARD SQUALLS OF RAINCLOUDY1100000259697
1769-02-17T14:0016.95-26.85599.3MADEIRAN51E500S80W134.00-9ENEFRESH BREEZESFAIR0000000259698
1769-02-18T14:0016.53-28.55289.3MADEIRAN53E537SBW105.00-6NEBNFRESH BREEZESFAIR0000000259699
1769-02-19T14:0016.73-30.50179.3MADEIRAN55E560S86W117.00-6NE, NNEFRESH BREEZESFAIR0000000259700
1769-02-20T14:0016.73-32.33399.3MADEIRAN57E589W110.00-6NEFRESH BREEZESFAIR0000000259701