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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 LAUREL cruise from St. Jago to Funchal started at 1807-04-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750357, 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: 28.856364 * Median Longitude: -25.170909 * South-bound Latitude: 17.400000 * West-bound Longitude: -30.320000 * North-bound Latitude: 33.500000 * East-bound Longitude: -16.490000
Date/Time Start: 1807-04-08T14:00:00 * Date/Time End: 1807-04-29T13:00:00
Event(s):
Laurel_18070408_NMM_ADM/L/L163 * Latitude Start: 14.080000 * Longitude Start: -22.490000 * Latitude End: 32.270000 * Longitude End: -16.930000 * Date/Time Start: 1807-04-08T00:00:00 * Date/Time End: 1807-04-29T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Laurel (6th Rate Frigate), Voyage: St Jago - Funchal, 1st Observer: Woolcombe (Captain), 2nd Observer: Robert Milne (1st Officer/Master), Company: Royal Navy, Other ship information: 22G 526BM
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:
413 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)
1807-04-08T14:0017.40-26.22542.6PALMAN42E307N52W212.00-14ENELIGHT BREEZESVARIABLE0000000145385
1807-04-09T14:0019.17-27.17642.6PALMAN42E257N25W127.00-15ELIGHT BREEZESVARIABLE AND DARK CLOUDYSHOWERS OF RAIN1100000145386
1807-04-10T14:0021.03-27.95772.6PALMAN51E239N21W124.00-13ELIGHT BREEZES AND VARIABLEDARK CLOUDY0000000145387
1807-04-11T14:0023.03-28.553562.6PALMAN60E229N21W124.00-15ELIGHT BREEZES AND VARIABLEDARK CLOUDY0000000a trivial correction was made in this observation145388
1807-04-12T14:0024.47-29.157512.3PALMAN68E220N19W120.00-15ESTRONG BREEZES AND SQUALLY0000000145389
1807-04-13T14:0026.57-30.031912.3PALMAN97E218N21W131.00-15NEBNSTRONG BREEZES AND SQUALLY, PM FRESH BREEZES AND SQUALLY0000000145390
1807-04-14T14:0028.73-30.32626.7PALMAN89E223N6W132.00-17E, EBN, ESEMODERATE BREEZES, PM LIGHT BREEZESCLOUDY0000000145391
1807-04-15T14:0030.07-30.20969.3PALMAS2E221N5E78.00-17ESEFRESH BREEZESSWELL FROM NWCLEAR0000000145392
1807-04-16T14:0030.68-28.981529.3PALMAS78E199N55E75.00-17SBEFRESH BREEZESCLEAR, PM CLOUDY0000000145393
1807-04-17T14:0031.52-28.77732.6PALMAS73E196N13E50.00-17ELIGHT BREEZESCLEAR0000000145394
1807-04-18T14:0032.70-28.83712.6PALMAS67E212N2W72.00-19VARIABLELIGHT BREEZESCLEAR0000000145395
1807-04-19T14:0033.28-28.221392.6PALMAS62E199N46E51.00-19SSELIGHT BREEZESCLEAR0000000145396
1807-04-20T14:0032.78-25.822162.6PALMAS60E163S72E144.00-20SWBWLIGHT BREEZES, LATER CALMCLEAR THEN CLOUDY0000000145397
1807-04-21T14:0033.38-25.321389.3PALMAS53E159N41E51.00-20SBEFRESH BREEZES AND SQUALLY0000000145398
1807-04-22T14:0033.25-24.7759PALMAS54E152S37E31.00-20EBNDARK SQUALLYFINE AND CLEAR0000000145399
1807-04-23T14:0032.23-23.305PALMAS53E120S50E97.00-18NNEDARK SQUALLYFINE AND CLEAR0000000145400
1807-04-24T13:0031.65-20.78379.3PALMAS45E78S67E139.00-19NEBEFRESH BREEZESCLEAR0000000145401
1807-04-25T13:0030.23-18.9249.3PALMAS55E40S55E191.00-19NNEFRESH BREEZESCLEAR0000000145402
1807-04-26T13:0029.67-19.101392.6PALMAS51E64S14W42.00-19SSELIGHT BREEZECLEAR0000000145403
1807-04-27T13:0029.30-17.991849.3PALMAS25E12-19S, SSW, SBWFRESH BREEZECLEAR0000000145404
1807-04-28T13:0033.50-16.881829.3FUNCHALN5W42S54E108.00-21SSWFRESH BREEZECLEAR0000000145405
1807-04-29T13:0030.20-16.49936.7SALVAGESSWBW7-20SEMODERATE BREEZESRAINCLOUDY0100000145406