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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 WEAZLE cruise from Spithead to Madeira started at 1771-12-29 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752853, 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: 38.449000 * Median Longitude: -15.151000 * South-bound Latitude: 32.630000 * West-bound Longitude: -16.890000 * North-bound Latitude: 47.800000 * East-bound Longitude: -8.800000
Date/Time Start: 1771-12-30T00:00:00 * Date/Time End: 1772-01-09T13:00:00
Event(s):
Weazle_17711229_NMM_ADM/L/W45 * Latitude Start: 50.680000 * Longitude Start: -0.960000 * Latitude End: 32.130000 * Longitude End: -16.570000 * Date/Time Start: 1771-12-30T00:00:00 * Date/Time End: 1772-01-09T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Weazle (Sloop), Voyage: Spithead - Madeira, 1st Observer: Francis Reynolds (Captain), 2nd Observer: Jonathan Dove (1st Officer/Master), Company: Royal Navy, Other ship information: 16G 308BM
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 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 IdentificationIDCLIWOC 2.1 line number
Size:
198 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 
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 
ID
(CLIWOC 2.1 line number)
1771-12-30T00:006819.0LIZARDNE1/2E8NE, ENEFRESH GALESCLOUDY0000000278451
1771-12-31T13:0047.80-8.804619.0LIZARDN47E65S47W194.00-22ENEFRESH GALESDRIZZLING RAINCLOUDY0100000278452
1772-01-01T13:0045.67-12.277019.0LIZARDN48E127S48W194.00-20ENE, EFRESH GALES AND SQUALLYDRIZZLING RAIN0100000278453
1772-01-02T13:0042.90-14.238119.0LIZARDN41E188S27W187.00-20E, EBSFRESH GALES AND SQUALLY0000000278454
1772-01-03T13:0040.05-15.626019.0LIZARDS36E245S20W182.00-19EBNFRESH GALES AND SQUALLY0000000278455
1772-01-04T13:0037.82-16.171059.3PORTO SANTOS5W94S11W137.00-19E, VARIABLE, SEBEFRESH BREEZESVARIABLE0000000278456
1772-01-05T13:0035.47-16.8711819.0PORTO SANTOS2E48S5W142.00-17SEFRESH GALESLIGHTNING IN NIGHTCLOUDY0000100278457
1772-01-06T13:0034.76-16.8910719.0MADEIRASWBW9-17SEBEFRESH GALES AND SQUALLYLIGHTNING IN NIGHTRAIN0100100278458
1772-01-07T13:0034.05-16.8911819.0DESERTEREBS1/2S5-17ESE, SEFRESH GALES AND SQUALLYLIGHTNING IN NIGHTRAIN0100100278459
1772-01-08T13:0033.34-16.891182.6DESERTERE9-17SEBS, S, EBN, SEFIRST FRESH GALES AND SQUALLY, RESIDUE LITTLE WIND AND CALMRAIN0100000278460
1772-01-09T13:0032.63-16.882649.31-17SEBE, WNW, CALM, NW-WBNFIRST AND MID LITTLE WINDS WITH CALMS, LATTER FRESH BREEZES AND SQUALLYRAIN0100000278461