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Koek, Frits B (2010): Meteorological observations during AMBUSCADE cruise from Cork to Barbados started at 1801-06-07 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747346, 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: 28.200513 * Median Longitude: -28.221538 * South-bound Latitude: 13.230000 * West-bound Longitude: -57.500000 * North-bound Latitude: 50.200000 * East-bound Longitude: -9.320000
Date/Time Start: 1801-06-07T13:00:00 * Date/Time End: 1801-07-15T16:00:00
Event(s):
Ambuscade_18010607_NMM_ADM/L/A111 * Latitude Start: 50.630000 * Longitude Start: -10.420000 * Latitude End: 14.850000 * Longitude End: -59.680000 * Date/Time Start: 1801-06-07T00:00:00 * Date/Time End: 1801-07-15T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Ambuscade (5th Rate Frigate), Voyage: Cork - Barbados, 1st Observer: John Colville (Captain), Company: Royal Navy, Other ship information: 36G, 905BM
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 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 IdentificationIDCLIWOC 2.1 line number
Size:
713 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 
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 
ID
(CLIWOC 2.1 line number)
1801-06-07T13:0050.20-9.32196.7MADEIRAS18W387S15W88.00-26NNE, NEMODERATE BREEZES, AT NOON MODERATETHICK RAINY WEATHER01000009059
1801-06-08T13:0048.98-9.70196.7MADEIRAS20W350S11W72.00-26NNE, NEMODERATE BREEZES, AT NOON MODERATETHICK RAINY WEATHER01000009060
1801-06-09T13:0047.67-10.6519MADEIRAS17W310S26W88.00-26NEPM MODERATEAM THICK FOGGY WEATHER, PM CLOUDY00100009061
1801-06-10T13:0046.07-11.5344MADEIRAS19W280S21W102.00-24NE, ENEPM MODERATEAM THICK FOGGY WEATHER, PM CLOUDY00100009062
1801-06-11T13:0044.87-12.0589MADEIRAS17W253S17W75.00-24E, SE, ESEPM MODERATETHICK FOGGY WEATHER, PM CLOUDY00100009063
1801-06-12T13:0043.43-12.88110MADEIRAS16:2W220S25W93.00-25SEPM LIGHT BREEZESAM THICK RAINY WEATHER01000009064
1801-06-13T13:0040.98-14.2567MADEIRAS17:20W171S23W159.00-23EPM FRESH BREEZESPM THICK RAINY WEATHER01000009065
1801-06-14T13:0038.83-15.4845MADEIRAS12W123S23W148.00-23ENEPM FRESH BREEZESPM CLOUDY00000009066
1801-06-15T13:0037.18-16.35586.7MADEIRAS10W94S25W107.00-21EBNPM MODERATE BREEZES, AT NOON MODERATEPM CLEAR WEATHER, AT NOON CLEAR00000009067
1801-06-16T13:0035.80-17.10362MADEIRAS5W66S25W85.00-21E, ESE, VARIABLEPM LIGHT BREEZESPM CLEAR00000009068
1801-06-17T13:0035.30-18.23362MADEIRAS13:22W57S61W63.00-20SBE, VARIABLEPM LIGHT BREEZESPM CLOUDY00000009069
1801-06-18T13:0034.62-19.02362BARBADOSS60:09W854S45W54.00-20SWBS, W, VARIABLEPM FRESH BREEZESPM SHOWERS OF RAIN11000009070
1801-06-19T13:0033.57-19.23228MADEIRAS54:15W36S17W61.00-20NWBN, WNW, WSWPM MODERATEPM CLEAR00000009071
1801-06-20T13:0032.73-18.72362MADEIRAS78E47N73W67.00-20SWBW, WNW, VARIABLEPM MODERATEPM CLEAR00000009072
1801-06-21T13:0031.85-19.25296MADEIRAN30E19S30W57.00-19NWPM LIGHT BREEZESPM CLEAR00000009073
1801-06-22T13:0031.27-19.38229BARBADOSS64W823S10W35.00-19NNW, WSWPM LIGHT BREEZESPM CLEAR00000009074
1801-06-23T13:0030.57-19.48362PALMAS41E52S8W39.00-19NWBW, VARIABLEPM LIGHT BREEZESPM CLEAR00000009075
1801-06-24T13:0029.57-20.10274PALMAS57E49S30W64.00-19WNWPM LIGHT BREEZESPM CLEAR00000009076
1801-06-25T13:0028.30-20.854BARBADOSS57E773S31W86.00-19NW, WSW, NNW, NNEPM LIGHT BREEZESPM CLEAR00000009077
1801-06-26T13:0027.00-22.4228BARBADOSS68W737S48W113.00-17NEPM MODERATEPM CLEAR00000009078
1801-06-27T14:0025.70-23.9829BARBADOSS69W700S48W114.00-16NEPM MODERATEPM CLEAR00000009079
1801-06-28T14:0024.45-25.8329BARBADOSS70:31W673S55W130.00-16NEPM MODERATEPM CLEAR00000009080
1801-06-29T14:0023.40-28.00316.7BARBADOSS71:12W635S61W129.00-14NEPM MODERATE, AM MODERATE BREEZESPM CLEAR, AM CLOUDY00000009081
1801-06-30T14:0022.42-30.1233BARBADOSS71:48W591S64W130.00-12NEPM MODERATEPM CLEAR00000009082
1801-07-01T14:0021.47-32.33676.7BARBADOSS72:23W546S66W135.00-12EBNPM MODERATE, AT NOON MODERATE BREEZESPM CLEAR00000009083
1801-07-02T14:0020.63-34.2058BARBADOSS72:58W508S66W114.00-10ENEPM MODERATEPM CLEAR00000009084
1801-07-03T14:0020.08-35.6535BARBADOSS73:19W480S68W88.00-10NEPM MODERATEPM CLOUDY00000009085
1801-07-04T14:0019.53-37.0558BARBADOSS73:39W452S68W85.00-10ENEPM LIGHT BREEZESPM CLOUDY00000009086
1801-07-05T15:0018.95-38.7361BARBADOSS74:1W418S70W102.00-7ENEPM MODERATEPM CLOUDY00000009087
1801-07-06T15:0018.45-40.53616.7BARBADOSS74:1W381S74W107.00-7ENEPM FINE BREEZES, AM MODERATEPM HAZY, AM CLOUDY00000009088
1801-07-07T15:0017.68-42.4761BARBADOSS74:50W343S68W119.00-7ENEPM LIGHT BREEZESPM CLOUDY00000009089
1801-07-08T15:0016.93-44.5265BARBADOSS72:38W301S69W126.00-3ENEPM MODERATEPM CLEAR00000009090
1801-07-09T15:0016.17-46.4865BARBADOSS76:51W261S69W121.00-3ENEPM MODERATE BREEZESPM HAZY00000009091
1801-07-10T15:0015.60-48.1067BARBADOSS77:50W228S70W99.00-1ENEPM LIGHT BREEZESPM CLOUDY00000009092
1801-07-11T15:0015.02-49.7778BARBADOSS79:16W195S70W103.00-1EBNPM MODERATE, AT 2 SQUALLYPM CLEARAT 2 SHOWERS OF RAIN11000009093
1801-07-12T15:0014.35-51.3578BARBADOSS81:51W162S66W100.00-1ENE, VARIABLE, EBNPM MODERATEPM CLOUDY00000009094
1801-07-13T16:0013.60-52.7769BARBADOSS85:54W135S66W108.001ENEPM MODERATEPM CLEAR00000009095
1801-07-14T16:0013.23-55.27919.3BARBADOSW86S80W123.001EPM SQUALLY, AT NOON FRESH BREEZESAT NOON CLOUDYPM RAIN01001009096
1801-07-15T16:0013.37-57.50706.7BARBADOSS85:17W40N87W137.002ENEPM SQUALLY, AM FRESH BREEZES, AT NOON MODERATEAM CLEAR, AT NOON CLOUDYPM HEAVY SHOWERS OF RAIN11000009097