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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 PRUDENT cruise from St. Augustine to Bombay started at 1772-09-04 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751612, 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: 2.413913 * Median Longitude: 57.593043 * South-bound Latitude: -23.630000 * West-bound Longitude: 41.990000 * North-bound Latitude: 17.830000 * East-bound Longitude: 72.960000
Date/Time Start: 1772-09-04T09:00:00 * Date/Time End: 1772-10-25T07:00:00
Event(s):
Prudent_17720904_NMM_ADM/L/P444 * Latitude Start: -23.630000 * Longitude Start: 43.410000 * Latitude End: 18.500000 * Longitude End: 72.820000 * Date/Time Start: 1772-09-04T00:00:00 * Date/Time End: 1772-10-25T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Prudent (3rd Rate Frigate), Voyage: St Augustine - Bombay, 1st Observer: John Clerke (Captain), 2nd Observer: Thomas Henery (1st Officer/Master), Company: Royal Navy, Other ship information: 64G 1366BM
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
14 Current speed descriptionV descr
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Present weatherwwWeather description
17 Precipitation descriptionPrecip descr
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 IdentificationIDCLIWOC 2.1 line number
Size:
974 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 
Cur dir descr
(Direction of the current. Thi...)
14 
V descr
15 
Wind force descr
(All reported wind forces on t...)
16 
ww
(Weather description)
17 
Precip descr
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
ID
(CLIWOC 2.1 line number)
1772-09-04T09:00-23.6342.461796.7ST AUGUSTIN BAYN67E17S67W52.00-24SSE, VARIABLE, S, SSWMODERATEFAIR WEATHER0000000204488
1772-09-05T09:00-21.2542.91472.6ST AUGUSTIN BAYS31:11E46N10W145.00-21SSW, SE, NE, ENELIGHT BREEZESCLEAR WEATHER0000000204489
1772-09-06T09:00-20.8343.193622.6ST AUGUSTIN BAYS29E53N39W32.00-21VARIABLELIGHT BREEZESCLEAR WEATHER0000000204490
1772-09-07T09:00-20.1543.043622.6ST AUGUSTIN BAYS22:17E67N13E42.00-21VARIABLELIGHT BREEZESCLEAR WEATHER0000000204491
1772-09-08T09:00-19.7342.89691.0ST AUGUSTIN BAYS8E71N16E26.00-21N, NBW, ENE, ELIGHT AIRSCLOUDY WEATHER0000000204492
1772-09-09T09:00-19.2343.533621.0ST AUGUSTIN BAYS21:30E86N41W40.00-21VARIABLELIGHT AIRSCLOUDY WEATHER0000000204493
1772-09-10T09:00-18.5042.843621.0ST AUGUSTIN BAYN12:54E92S28E28.00-21VARIABLELIGHT AIRSCLOUDY WEATHER0000000204494
1772-09-11T09:00-18.0042.841371.0ST CHRISTOPHERS14W107N18E53.00-21SW, SSELIGHT AIRSCLOUDY WEATHER0000000204495
1772-09-12T09:00-16.3341.992041.0MAYOTTAN29E26N14E79.00-21SBW, SWLIGHT AIRSCLOUDY WEATHER0000000204496
1772-09-13T09:00-15.6342.212491.0MAYOTTAN34:49E56N16E44.00-21SW, E, WLIGHT AIRSCLOUDY WEATHER0000000204497
1772-09-14T09:00-14.8742.39114MAYOTTAN34:49E42N14E48.00-21E, W, S, SEPM LIGHT AIRS AND CALM0000000204498
1772-09-15T09:00-14.2042.66116MAYOTTAN42:11E27N21E43.00-19SW, SEPM LIGHT AIRS AND CALM0000000204499
1772-09-16T00:00-12.80362MOHILLAN1/2W9VARIABLEPM LIGHT AIRSPM CLEAR WEATHER0000000204500
1772-09-17T00:00-12.02791.0LANDNWBW4ESE, EBS, NEBE, EBNLIGHT AIRS AND CALM0000000204501
1772-09-18T09:00-10.6843.571186.7COMEROS01W20S11E61.00-17SSW, S, SEMODERATEFAIR WEATHER0000000204502
1772-09-19T09:00-8.6343.53846.7COMEROS3:38E68N11W125.00-17NE, EBSMODERATEFAIR WEATHER0000000204503
1772-09-20T09:00-6.5043.6398COMEROS3:36E104N3W127.00-15ESEPM MODERATECLOUDY WEATHER0000000204504
1772-09-21T09:00-5.5043.431206.7COMEROS01:11E132N8E86.00-15SEMODERATE BREEZESCLEAR WEATHER0000000204505
1772-09-22T09:00-3.6744.351436.7COMEROS7:56E178N41E115.00-15SE, SSE,MODERATE BREEZESCLOUDY WEATHER0000000204506
1772-09-23T09:00-2.1746.401666.7COMEROS7:36E199N51E148.00-14SSE, SEBS, SSE, SMODERATE BREEZESCLOUDY WEATHER0000000204507
1772-09-24T09:00-0.6748.231686.7COMEROS23:47E241N50E142.00-12SMODERATECLEAR WEATHER0000000204508
1772-09-25T09:000.8549.301686.7BOMBAYN51E587S35E111.00-12S, SW, SMODERATE BREEZESCLOUDY WEATHER0000000204509
1772-09-26T00:002.232256.7BOMBAYN51E542N51E128.00S, SWMODERATE BREEZESFAIR0000000204510
1772-09-27T00:003.5322519.0BOMBAYN58E498N61E164.00SW, WSW, SWPM MODERATE, AM FRESH GALESPM CLOUDY WEATHER, AM CLEAR WEATHER0000000204511
1772-09-28T00:005.852259.3BOMBAYN58:10E436N48E164.00SWFRESH BREEZESCLOUDY WEATHER0000000204512
1772-09-29T00:00225BOMBAYN48E91.00SWBW, SWPM FRESH BREEZESPM CLOUDY WEATHER0000000204513
1772-09-30T08:007.7359.072646.7BOMBAYN48:31E351N52E162.00-6SWBW, WMODERATE BREEZESCLEAR WEATHER0000000204514
1772-10-01T08:009.3561.04242BOMBAYN48:6E298N52E162.00-6WNW, W, SW, WSWPM MODERATE BREEZESPM CLOUDY WEATHER0000000204515
1772-10-02T08:0010.6762.562446.7BOMBAYN46:9E249N31E126.00-4WNW, W, SW, WSWMODERATE BREEZES, 4PM SQUALLY, AT 6 MODERATE4PM SMALL RAINFAIR WEATHER, AT 6 CLOUDY WEATHER0100000204516
1772-10-03T08:0011.7064.092666.7BOMBAYN45:39E218N52E118.00-4WSW, WMODERATEFAIR WEATHER0000000204517
1772-10-04T08:0012.7264.98266BOMBAYN45:50E189N45E87.00-4WPM MODERATESOME RAINPM FAIR WEATHER0100000204518
1772-10-05T08:0013.8766.00300BOMBAYN45:15E154N48E103.00-4WSW, WNW, NWBWPM MODERATESOME RAINPM FAIR WEATHER0100000204519
1772-10-06T08:0014.4366.55419.3BOMBAYN45:28E140N47E50.00-4W, WNW, NWBW, NBE, NEBE, NESW0.5FRESH BREEZESCLOUDY WEATHER0000000204520
1772-10-07T08:0014.4366.453560.0BOMBAYN45:20E139E4.00-4NE, NBE, NPM LIGHT AIRS, AM CALMPM CLEAR, AM CLOUDY0000000204521
1772-10-08T08:0014.3766.27520.0BOMBAYN45:23E141S10W6.00-4CALM, EBS, NEBEPM CALM, AM LIGHT AIRS, LATTER PART CALMPM CLEAR WEATHER, AM CLOUDY0000000204522
1772-10-09T08:0014.0066.6630BOMBAYN40E137S56E89.00-4NE, NEBE, NEBNPM LIGHT AIRSPM CLEAR WEATHER0000000204523
1772-10-10T07:0013.7768.7332GOAN66E89S79E75.00-2NBE, NNE, NEBNPM LIGHT AIRSPM CLEAR WEATHER0000000204524
1772-10-11T07:0013.7768.16771.0BOMBAYN26E123E35.00-2NNE, NE, ENE, EBNMODERATE BREEZES, AT 4 LIGHT AIRSCLOUDY WEATHER0000000204525
1772-10-12T08:0014.4867.40522.6BOMBAYN25:49E109N40W57.00-4NEBN, NEBELIGHT BREEZESCLEAR WEATHER0000000204526
1772-10-13T07:0014.3768.203362.6BOMBAYN25:49E109S83E58.00-2NNE, VARIABLE, NNWLIGHT BREEZESCLEAR WEATHER0000000204527
1772-10-14T07:0014.5869.123476.7BOMBAYN25:49E98N78E65.00-2NNW, VARIABLE, NBWMODERATE BREEZES, AT 10 AM MODERATECLEAR WEATHER, AT 10AM FAIR WEATHER0000000204528
1772-10-15T07:0015.1869.57212.6BOMBAYN11:08E78N70E120.00-2NBW, NNELITTLE WINDFAIR WEATHER0000000204529
1772-10-16T07:0015.3370.49542.6BOMBAYN82E29N83E63.00-2NBW, NEBEMODERATE, AM LITTLE WINDHAZY WEATHER, AM FAIR WEATHER0000000204530
1772-10-17T07:0015.3371.05431.0BOMBAYN73E40.00-2NBW, NELITTLE WIND, AM LIGHT AIRSFAIR WEATHER, PM HAZY0000000204531
1772-10-18T07:0015.3071.30541.0BOMBAYN33E87S84E23.00-2NNW, NEBEWBS3LIGHT AIRSFAIR WEATHER0000000204532
1772-10-19T07:0015.3071.32358BOMBAYN84:26E49E9.00-2NNE, NNW, NSWBW6PM LIGHT AIRSLIGHTNING TO THE SEFAIR WEATHER, PM HAZY0000100204533
1772-10-20T07:0015.4371.70431.0BOMBAYN18:31E71N76E33.00-2NNW, NELIGHT AIRSSULTRY0000000204534
1772-10-21T07:0016.0272.273132.6BOMBAYN6:00E60N54E66.00-2NEBN, NWLITTLE WINDFAIR WEATHER0000000204535
1772-10-22T07:0016.4372.54552.6BOMBAYN51N36E31.00-1ENE, NW, NEBELITTLE WINDSLIGHTNING TO THE SEFAIR WEATHER0000100204536
1772-10-23T07:0016.7772.96221.0BOMBAYN14W46N59E39.00-1NE, NWBN, NNELIGHT AIRSLIGHTNING TO THE SEFAIR WEATHER0000100204537
1772-10-24T07:0017.2072.913141.0BOMBAYN19W98N14E27.00-1NW, SW, NEBN, NWLIGHT AIRSFAIR WEATHER0000000204538
1772-10-25T07:0017.8372.503472.6BOMBAYN12W21N22W41.00-2WNW, NBWLITTLE WINDFAIR WEATHER0000000204539