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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 DRUID cruise from Madeira to Barbados started at 1763-10-22 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.748703, 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: 20.103000 * Median Longitude: -37.769000 * South-bound Latitude: 12.670000 * West-bound Longitude: -58.370000 * North-bound Latitude: 32.020000 * East-bound Longitude: -18.070000
Date/Time Start: 1763-10-22T13:00:00 * Date/Time End: 1763-11-10T16:00:00
Event(s):
Druid_17631022_NMM_ADM/L/D239 * Latitude Start: 32.130000 * Longitude Start: -16.570000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1763-10-22T00:00:00 * Date/Time End: 1763-11-10T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Druid (Sloop), Voyage: Madeira - Barbados, 1st Observer: John Luttrell (Captain), 2nd Observer: Harry Heron (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 10G 208BM
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:
384 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)
1763-10-22T13:0032.02-18.073026.7MADEIRAN48E20S48W62.00-13NWMODERATEFAIR000000062841
1763-10-23T13:0029.72-21.143029.3MADEIRAN47E89SW3/4W138.00-13NWFRESH BREEZESRAINCLOUDY010000062842
1763-10-24T13:0027.90-22.343029.3MADEIRAN46E131S46W153.00-13N, NWFRESH BREEZESRAINCLOUDY010000062843
1763-10-25T14:0027.08-23.12356.7MADEIRAN46E152SW69.00-10NWBN, NEMODERATEFAIR000000062844
1763-10-26T14:0026.35-24.19581.0MADEIRAN47E177SWBW74.00-10ENELIGHT AIRSCLEAR000000062845
1763-10-27T14:0025.32-26.50581.0MADEIRAN47E215SWBW1/4W115.00-10ENELIGHT AIRSCLEAR000000062846
1763-10-28T14:0023.98-28.36609.3MADEIRAN46E267SWBW1/4W157.00-8ENEFIRST PART MODERATE, MIDDLE AND LATTER FRESH BREEZESFIRST PART FAIR, MIDDLE AND LATTER CLOUDY000000062847
1763-10-29T14:0022.68-30.7282MADEIRAN46E319S31W155.00-8ESQUALLYRAIN010000062848
1763-10-30T14:0021.32-33.6763MADEIRAN53E386S64W188.00-5ENESQUALLYRAIN010000062849
1763-10-31T14:0020.33-36.15859.3MADEIRAN53E386WSW164.00-5EFRESH BREEZESLIGHTNING FROM SWCLOUDY000010062850
1763-11-01T15:0019.02-38.36762.6MADEIRAN55E487SWBW151.00-3EBNLIGHT BREEZESCLOUDY000000062851
1763-11-02T15:0017.53-40.64659.3MADEIRAN57E544SWBW163.00-3ENEFRESH BREEZESCLOUDY000000062852
1763-11-03T15:0015.97-43.13689.3MADEIRAN57E602SWBW175.000ENEFRESH BREEZES AND SQUALLYRAIN010000062853
1763-11-04T15:0014.48-45.73689.3MADEIRAN58E665SW3/4W183.000ENEFRESH BREEZES AND SQUALLYLIGHTNINGRAIN010010062854
1763-11-05T15:0013.38-48.17819.3MADEIRAN58E720WSW166.002ENE, EBNFRESH BREEZESRAIN010000062855
1763-11-06T15:0013.12-50.75819.3MADEIRAN57E772S84W156.002EBNFRESH BREEZESRAIN010000062856
1763-11-07T16:0012.67-53.36829.3MADEIRAN56E821S80W149.003EBNFRESH BREEZESRAIN010000062857
1763-11-08T16:0013.00-55.51829.3MADEIRAN55E865S81W131.003EBNFRESH BREEZESRAIN010000062858
1763-11-09T16:0013.07-57.10829.3MADEIRAN50E889W100.003EBNFRESH BREEZESRAINHAZY010000062859
1763-11-10T16:0013.12-58.37721.0MADEIRAN50W897W80.004ENELIGHT AIRSLIGHTNING FROM WRAIN010010062860