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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 AMBUSCADE cruise from Spithead to Barbados started at 1796-05-19 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747344, 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
Project(s):
Climatological Database for the Worlds Oceans: 1750-1854 (CLIWOC)
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090: Climatological Database for the Worlds Oceans: 1750-1854
Coverage:
Median Latitude: 27.702581 * Median Longitude: -31.874516 * South-bound Latitude: 13.000000 * West-bound Longitude: -59.530000 * North-bound Latitude: 49.300000 * East-bound Longitude: -6.280000
Date/Time Start: 1796-05-19T12:00:00 * Date/Time End: 1796-06-18T16:00:00
Event(s):
Ambuscade_17960519_NMM_ADM/L/A111 * Latitude Start: 50.680000 * Longitude Start: -0.960000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1796-05-19T00:00:00 * Date/Time End: 1796-06-18T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Ambuscade (5th Rate Frigate), Voyage: Spithead - Barbados, 1st Observer: Thomas Twysden (Captain), Company: Royal Navy, Other ship information: 36G, 905BM
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DATE/TIMEDate/TimeGeocode
2 LATITUDELatitudeGeocode
3 LONGITUDELongitudeGeocode
4 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.
5 Wind speedffm/scalculated from the descriptive terms of wind force given in the observations
6 LandmarkLandmarkName of first landmark
7 BearingBearingBearing of the first landmark
8 Distance to landmarkDistancearbitrary unitsDistance to the first landmark
9 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 GustsGusts1 If wind gusts are reported
17 Precipitation/RainRain1 If rain was reported
18 FogFog1 If fog was reported
19 Snow typeSnow1 If snow was reported
20 ThunderThunder1 If thunder and or lightning was reported
21 HailHail1 If hail was reported
22 Sea iceSea ice1 If sea-ice or icebergs were reported
23 CommentComment
24 IdentificationIDCLIWOC 2.1 line number
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
566 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Date/Time		2 
Latitude		3 
Longitude		4 
dd [deg]
(Wind direction (from which th...)		5 
ff [m/s]
(calculated from the descripti...)		6 
Landmark
(Name of first landmark)		7 
Bearing
(Bearing of the first landmark)		8 
Distance [arbitrary units]
(Distance to the first landmark)		9 
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 
Gusts
(1 If wind gusts are reported)		17 
Rain
(1 If rain was reported)		18 
Fog
(1 If fog was reported)		19 
Snow
(1 If snow was reported)		20 
Thunder
(1 If thunder and or lightning...)		21 
Hail
(1 If hail was reported)		22 
Sea ice
(1 If sea-ice or icebergs were...)		23 
Comment		24 
ID
(CLIWOC 2.1 line number)
1796-05-19T12:0049.30-6.28156ST MARYS SCILLYN18W14S66W124.00-24E, SPM MODERATEPM CLEAR00000008991
1796-05-20T13:0048.10-8.55154CAPE ORTEGALS7W84S52W145.00-26SPM MODERATEPM RAIN01000008992
1796-05-21T13:0046.93-10.2515612.3FINISTERES55W103.00-24SPM FRESH GALES, AM STRONG BREEZESAM CLOUDYPM THICK RAINY WEATHER01000008993
1796-05-22T13:0045.50-12.02156MADEIRAS15W263S40W115.00-24SPM FRESH BREEZESPM CLOUDY00000008994
1796-05-23T13:0043.22-14.176619.0MADEIRAS10W204S34W165.00-24EPM FRESH BREEZES, AM FRESH GALESAM HAZYPM RAIN01000008995
1796-05-24T13:0040.35-16.2523MADEIRAS1E150S28W195.00-22NEPM FRESH GALESPM CLEAR00000008996
1796-05-25T13:0038.03-18.7023FUNCHALLS26E180S40W181.00-22NEPM FRESH BREEZESPM RAIN01000008997
1796-05-26T13:0036.43-20.6048BARBADOSS58W860S42W135.00-20ENEPM MODERATEPM CLEAR00000008998
1796-05-27T13:0034.98-22.4325BARBADOSS58W810S48W120.00-20NEPM MODERATEPM CLEAR00000008999
1796-05-28T14:0033.22-24.32266.7BARBADOSS58W747S42W106.00-19NEPM MODERATE, AM MODERATEPM CLEAR, AM CLOUDY00000009000
1796-05-29T14:0031.92-25.6051BARBADOSS59W726S46W113.00-17ENEPM MODERATEPM CLOUDY00000009001
1796-05-30T14:0030.60-26.8273BARBADOSSWBW751SW1/4S100.00-17EPM MODERATEPM PLEASANT WEATHER00000009002
1796-05-31T14:0029.18-27.3373BARBADOSSWBW1/2W673SW1/2W60.00-17EPM LIGHT AIRSPM PLEASANT WEATHER00000009003
1796-06-01T14:0029.18-28.30345BARBADOSSWBW1/2W673SW1/2W64.00-15NPM LIGHT AIRSPM PLEASANT WEATHER00000009004
1796-06-02T14:0028.27-29.4330BARBADOSSWBW1/2W631SW1/4S85.00-15NEPM LIGHT AIRSPM PLEASANT WEATHER0000000a trivial correction was made in this observation9005
1796-06-03T14:0026.83-30.8077BARBADOSSWBW3/4W594SW116.00-13EPM LIGHT AIRSPM PLEASANT WEATHER00000009006
1796-06-04T14:0025.68-32.0855BARBADOSWSW583SW1/4W98.00-13ENEPM LIGHT AIRSPM PLEASANT WEATHER00000009007
1796-06-05T14:0024.48-33.6357BARBADOSWSW547SW1/2W106.00-11ENEPM LIGHT AIRSPM PLEASANT WEATHER00000009008
1796-06-06T14:0023.33-35.2057BARBADOSWSW513SW1/2W110.00-11ENEPM LIGHT AIRSPM PLEASANT WEATHER00000009009
1796-06-07T14:0022.07-36.6759BARBADOSWSW1/4W487SW1/4W110.00-9ENEPM LIGHT AIRSPM PLEASANT WEATHERAM SHOWERS OF RAIN11000009010
1796-06-08T15:0019.35-38.3061BARBADOSWSW1/4W438SW130.00-7ENEPM FRESH BREEZESPM SHOWERS OF RAIN11000009011
1796-06-09T15:0019.35-39.9061BARBADOSWBS1/2S397SW1/2W120.00-7ENEPM STEADY BREEZESPM CLOUDY00000009012
1796-06-10T15:0018.28-41.6561BARBADOSWBS1/4S369SWBW120.00-7ENEPM FRESH BREEZESPM CLOUDY00000009013
1796-06-11T15:0017.18-43.3265BARBADOSWBS328SW1/2W128.00-3ENEPM FRESH BREEZESPM CLOUDY00000009014
1796-06-12T15:0016.07-45.0765BARBADOSWBS298SWBW120.00-3ENEPM FRESH BREEZESPM CLOUDY00000009015
1796-06-13T15:0014.95-47.0265BARBADOSW1/2S245SWBW1/4W128.00-3ENEPM FRESH BREEZESPM CLOUDY00000009016
1796-06-14T15:0013.90-49.3367BARBADOSW1/4S203SWBW3/4W142.00-1ENEPM FRESH BREEZESPM CLEAR00000009017
1796-06-15T15:0013.10-52.1867BARBADOSW141WBS1/2S165.00-1ENEPM FRESH BREEZESPM CLOUDY00000009018
1796-06-16T16:0013.00-54.88699.3BARBADOSW95W1/4S158.001ENEFRESH BREEZESCLEAR00000009019
1796-06-17T16:0013.00-57.50719.3BARBADOSW45W156.003ENEFRESH BREEZESCLEAR00000009020
1796-06-18T16:0013.00-59.53719.3BARBADOSW6W120.003ENEFRESH BREEZESCLEAR00000009021