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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 RAISONABLE cruise from Table Bay to The Downs started at 1799-04-15 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751680, 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: 12.108784 * Median Longitude: -20.025405 * South-bound Latitude: -31.170000 * West-bound Longitude: -38.350000 * North-bound Latitude: 49.870000 * East-bound Longitude: 17.030000
Date/Time Start: 1799-04-15T11:00:00 * Date/Time End: 1799-07-10T12:00:00
Event(s):
Raisonable_17990415_NMM_ADM/L/R28 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: 47.720000 * Longitude End: -5.280000 * Date/Time Start: 1799-04-15T00:00:00 * Date/Time End: 1799-07-10T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Raisonable (3rd Rate Frigate), Voyage: Table Bay - Downs Uk, 1st Observer: Charles Boyles (Captain), Company: Royal Navy, Other ship information: 64G 1376BM
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
15 Current speed descriptionV descr
16 Wind force descriptionWind force descrAll reported wind forces on this day
17 Present weatherwwWeather description
18 Precipitation descriptionPrecip descr
19 ClearnessClearness
20 GustsGusts1 If wind gusts are reported
21 Precipitation/RainRain1 If rain was reported
22 FogFog1 If fog was reported
23 Snow typeSnow1 If snow was reported
24 ThunderThunder1 If thunder and or lightning was reported
25 HailHail1 If hail was reported
26 Sea iceSea ice1 If sea-ice or icebergs were reported
27 CommentComment
28 IdentificationIDCLIWOC 2.1 line number
Size:
1423 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 
Cur dir descr
(Direction of the current. Thi...)
15 
V descr
16 
Wind force descr
(All reported wind forces on t...)
17 
ww
(Weather description)
18 
Precip descr
19 
Clearness
20 
Gusts
(1 If wind gusts are reported)
21 
Rain
(1 If rain was reported)
22 
Fog
(1 If fog was reported)
23 
Snow
(1 If snow was reported)
24 
Thunder
(1 If thunder and or lightning...)
25 
Hail
(1 If hail was reported)
26 
Sea ice
(1 If sea-ice or icebergs were...)
27 
Comment
28 
ID
(CLIWOC 2.1 line number)
1799-04-15T11:00-31.1717.033139.3ST HELENAN48W530N57W78.00-25S, SSE, NNWLIGHT BREEZES, AT 5 CALM, AM FRESH BREEZESCLOUDY, AT 5 CLEAR0000000a trivial correction was made in this observation206997
1799-04-16T11:00-28.9213.731789.3ST HELENAN49W462N54W209.00-25VARIABLE, WSW, SSWFRESH GALES, AT NOON FRESH BREEZESHAZY, AT NOON CLOUDY0000000a trivial correction was made in this observation206998
1799-04-17T11:00-27.9712.722346.7ST HELENAN53W432N21W145.00-25NWBW, NW, WBSFRESH BREEZES, AT NOON MODERATECLEAR0000000a trivial correction was made in this observation206999
1799-04-18T11:00-27.9712.723132.6ST HELENAN55W426N57.00-25NWBN, NNE, NNWMODERATE BREEZES, AT NOON LIGHT BREEZESCLEAR0000000a trivial correction was made in this observation207000
1799-04-19T11:00-27.0711.333156.7ST HELENAN56W398N56W88.00-23SW, SE, NNWLIGHT BREEZES, AT NOON MODERATE BREEZESCLEAR, AT NOON CLOUDY0000000a trivial correction was made in this observation207001
1799-04-20T11:00-25.308.431356.7ST HELENAN56W332N56W188.00-23S, SSEMODERATE BREEZESCLOUDY0000000a trivial correction was made in this observation207002
1799-04-21T12:00-23.686.031486.7ST HELENAN57W284N56W158.00-21SEBS, SBEMODERATE BREEZESCLEAR, AT NOON CLOUDY0000000a trivial correction was made in this observation207003
1799-04-22T12:00-22.434.051142.6ST HELENAN57W240N56W131.00-21SEFRESH BREEZES, AM LIGHT BREEZESCLOUDY0000000a trivial correction was made in this observation207004
1799-04-23T12:00-21.172.671252.6ST HELENAN60W207N45W107.00-21SSE, SEBSMODERATE BREEZES, AM LIGHT BREEZESCLOUDY0000000a trivial correction was made in this observation207005
1799-04-24T12:00-19.05-0.071616.7ST HELENAN66W159N43W166.00-19SBW, SMODERATE BREEZESCLEAR0000000207006
1799-04-25T12:00-16.88-2.071169.3ST HELENAN77W88N53W201.00-19SEFRESH BREEZESHAZY0000000207007
1799-04-26T12:00-15.80-5.051296.7ST HELENAN85W28N71W181.00-17SEBSFRESH BREEZES, AT NOON MODERATE BREEZESCLOUDY0000000207008
1799-05-10T12:00-15.00-6.871072.6ASCENSIONN46W204N49W85.00-17E, SEBELIGHT BREEZESHAZY0000000207009
1799-05-11T13:00-14.27-8.121092.6ASCENSIONN44W176N59W84.00-15SSW, SE, SEBELIGHT BREEZESCLOUDY0000000207010
1799-05-12T13:00-13.15-10.101202.6ASCENSIONN35W149N62W130.00-15SELIGHT BREEZESCLOUDY0000000207011
1799-05-13T13:00-12.08-11.851199.3ASCENSIONN30W98N59W119.00-16SELIGHT BREEZES, AM FRESH BREEZESHAZY0000000207012
1799-05-14T13:00-11.18-13.401339.3ASCENSIONN13W67N59W106.00-13NNW, SE, SEBSMODERATE BREEZES, AM LIGHT BREEZES, AT NOON FRESH BREEZESCLOUDY0000000207013
1799-05-15T13:00-10.25-14.90882.6ASCENSIONN18E49N59W103.00-13SEBE, EBSMODERATE BREEZES, AT NOON LIGHT BREEZESCLEAR0000000207014
1799-05-16T13:00-9.57-15.971222.6ASCENSIONN41E50N56W96.00-13NE, E, SELIGHT BREEZESCLEAR0000000207015
1799-05-17T13:00-8.42-16.77776.7ST PAULSN46W267N34W85.00-13ENE, EBN, EMODERATE BREEZES0000000207016
1799-05-18T13:00-7.02-17.771246.7ST PAULSN47W235N34W106.00-11SEMODERATE BREEZESCLEAR0000000207017
1799-05-19T13:00-5.18-18.551029.3ST PAULSN52W199N22W123.00-11ESEFRESH BREEZESCLEAR0000000207018
1799-05-20T13:00-3.28-19.571246.7ST PAULSN57W153N28W130.00-11SE, ESE, SEMODERATE BREEZESCLEAR0000000207019
1799-05-21T13:00-1.52-19.971236.7ST PAULSN68W128N12W113.00-12ESE, SEMODERATE BREEZESCLEAR0000000207020
1799-05-22T13:000.60-20.521239.3BRAVAN12W291N14W135.00-12ESE, SEBE, SEFRESH BREEZESCLEAR0000000207021
1799-05-23T13:002.32-21.221232.6BRAVAN11W258N22W105.00-12SSE, N, SEMODERATE BREEZES, AT 6 SQUALLY, AT NOON LIGHT BREEZESAT 6 RAINCLEAR, AT NOON HAZY0100000207022
1799-05-24T13:003.43-21.90770.0BRAVAN7W233N31W78.00-13S, NE, EMODERATE BREEZES, AM MODERATE, AT 8 CALMAT 8 RAINCLOUDY0100000207023
1799-05-25T14:004.87-22.72352.6BRAVAN4W200N29W101.00-10ENE, VARIABLE, NELIGHT AIRS, AT NOON LIGHT BREEZESCLEAR, AT NOON CLOUDY0000000207024
1799-05-26T14:005.68-23.271599.3BRAVAN1W183N34W60.00-10VARIABLE, SEBS, SBELIGHT AIRS, AT 3 MODERATE BREEZES, AT NOON FRESH BREEZESRAINCLOUDY0100100207025
1799-05-27T14:006.47-23.122492.6BRAVAN2W168N11E47.00-10VARIABLE, N, WBSLIGHT AIRS, AM FRESH BREEZES, AT NOON LIGHT BREEZESCLOUDY0000000207026
1799-05-28T14:006.32-23.05132.6BRAVAN6W174S52E5.00-10SSW, SW, NNESOUTH1CALM, AM LIGHT BREEZESCLOUDY0000000207027
1799-05-29T14:006.52-23.5211.0BRAVAN8W168N67W31.00-10NBW, SSE, NBEMODERATE BREEZES, AM CALM, AT NOON LIGHT AIRSAM RAINCLOUDY0100000207028
1799-05-30T14:006.87-23.67350.0BRAVAN7W161N23W23.00-10NECALM, AT 1 LIGHT BREEZES, AM LIGHT BREEZES, AT NOON CALMAM RAINCLOUDY0100000207029
1799-05-31T14:007.38-24.38139.3BRAVAN1E149N57W50.00-10NE, NNECALM, AM FRESH BREEZESRAINCLOUDY0100000207030
1799-06-01T14:007.98-25.58239.3CORVON8W643N62W80.00-11NNE, NE, NEBNMODERATE BREEZES, AM FRESH BREEZESCLEAR0000000207031
1799-06-02T14:008.63-26.83346.7CORVON8W620N60W82.00-11NNE, NEBN, NEMODERATECLEAR0000000207032
1799-06-03T14:009.70-27.73369.3CORVON5W600N41W82.00-9ENE, NEFRESH BREEZESHAZY0000000207033
1799-06-04T14:0011.22-28.47709.3CORVON4W572N28W91.00-9NE, NEBE, EBNMODERATE BREEZES, AM FRESH BREEZESHAZY0000000207034
1799-06-05T14:0012.58-29.47466.7BRAVAN08E123N31W109.00-10NE, NEBEFRESH BREEZES, AT NOON MODERATE BREEZESCLOUDY, AT NOON CLEAR0000000207035
1799-06-06T14:0014.23-30.60469.3CORVON1E509N34W120.00-10ENE, NEBEFRESH BREEZESHAZY0000000207036
1799-06-07T14:0015.83-31.83589.3CORVON6E478N37W118.00-10NEBE, NEBN, ENEFRESH BREEZESHAZY0000000207037
1799-06-08T14:0017.60-32.70469.3CORVON7E446N25W118.00-10ENE, NEBEFRESH BREEZESCLOUDY0000000207038
1799-06-09T14:0019.22-33.42696.7CORVON8E414N23W105.00-10ENE, NEBE, EBNFRESH BREEZES, AT NOON MODERATE BREEZESCLOUDY, AT NOON CLEAR0000000207039
1799-06-10T14:0020.43-34.22466.7CORVON10E389N32W84.00-10ENE, EBN, NEBEMODERATE BREEZESCLEAR0000000207040
1799-06-11T14:0020.77-34.53691.0CORVON10E382N43W26.00-10NEBE, ESE, EBNLIGHT AIRSCLEAR0000000207041
1799-06-12T14:0020.63-34.751032.6CORVON11E376N38W20.00-10ENE, NEBN, ESELIGHT AIRS, AT 4 CALM, AT NON LIGHT BREEZESCLEAR0000000207042
1799-06-13T14:0021.52-35.28581.0CORVON15E373N39W48.00-10NE, NEBE, ENELIGHT AIRSCLEAR0000000207043
1799-06-14T14:0022.68-36.17562.6CORVON18E356N34W88.00-12NEBE, NE, ENEMODERATE BREEZES, AM LIGHT BREEZESCLEAR0000000207044
1799-06-15T14:0024.28-37.12446.7CORVON22E336N28W110.00-12ENE, NEBEMODERATE BREEZESCLEAR0000000207045
1799-06-16T15:0025.87-37.87592.6CORVON26E314N28W88.00-9E, EBN, ENEMODERATE BREEZES, AT NOON LIGHT BREEZESCLEAR0000000207046
1799-06-17T15:0026.52-38.35471.0CORVON28E299N23W67.00-9NE, EBN, NEBELIGHT AIRSCLEAR0000000207047
1799-06-18T15:0027.47-38.20592.6CORVON30E283N8E56.00-9EBS, ESE, ENELIGHT BREEZES, AT 4 LIGHT AIRS, AT 9 LIGHT BREEZESCLOUDY0000000207048
1799-06-19T15:0028.40-37.93101CORVON31E264N14E58.00-12SEBE, SE, ESELIGHT BREEZES, AT NOON SQUALLYCLEAR0000000207049
1799-06-20T15:0030.15-37.531126.7CORVON34E232N11E107.00-12ESE, SEBEMODERATE BREEZESCLEAR0000000207050
1799-06-21T14:0032.17-37.08999.3CORVON39E195N11E119.00-14SSW, SE, ESEFRESH BREEZESCLEAR0000000207051
1799-06-22T14:0034.23-36.57969.3CORVON47E158N11E137.00-17SEBS, SE, ESEFRESH BREEZESCLEAR0000000207052
1799-06-23T14:0035.75-36.381186.7CORVON54E135N6E90.00-17SEBS, SEMODERATE BREEZESCLEAR0000000207053
1799-06-24T14:0036.73-36.031632.6CORVON60E120N17E60.00-17SSW, SBW, SLIGHT BREEZESCLEAR0000000207054
1799-06-25T14:0037.67-35.931601.0CORVON67E104N23E56.00-20SEBS, SWBS, SMODERATE BREEZES, AM LIGHT AIRSAM CLEAR0000000207055
1799-06-26T14:0038.40-35.222051.0CORVON74E93N25E41.00-20VARIABLE, SWLIGHT BREEZES, AM CALM, AT NOON LIGHT AIRSCLEAR0000000207056
1799-06-27T14:0039.07-34.952162.6CORVON81E82N25E48.00-20SW, S, SWBWLIGHT BREEZESCLEAR0000000207057
1799-06-28T14:0040.42-33.782052.6CORVON76E59N26E108.00-20SSW, SWBW, SWLIGHT BREEZESCLEAR0000000207058
1799-06-29T14:0041.82-31.552159.3ST AGNES SCILLYN71E384N51E130.00-21SWBWFRESH BREEZESCLOUDY0000000207059
1799-06-30T14:0043.32-29.272249.3ST AGNES SCILLYN68E352N48E135.00-24NNW, NW, WSWFRESH BREEZESCLOUDY0000000207060
1799-07-01T14:0044.23-26.473139.3ST AGNES SCILLYN68E302N56E146.00-25NNWFRESH BREEZESCLEAR0000000207061
1799-07-02T14:0045.08-24.083249.3ST AGNES SCILLYN70E266N56E121.00-25SWBW, NBWFRESH BREEZESCLEAR0000000207062
1799-07-03T13:0046.43-21.132239.3ST AGNES SCILLYN72E224N55E151.00-25WBN, NNW, WSWFRESH BREEZESCLEAR0000000207063
1799-07-04T13:0047.23-18.422799.3ST AGNES SCILLYN73E182N66E122.00-25NNW, NWBWFRESH BREEZES, AT NOON FRESH BREEZESCLOUDY, AT NOON HAZY0000000207064
1799-07-05T13:0048.15-16.652219.3ST AGNES SCILLYN77E152N50E93.00-27N, W, WSWFRESH BREEZESCLOUDY0000000207065
1799-07-06T13:0049.07-14.202669.3ST AGNES SCILLYN81E113N60E111.00-27WBS, W, WNWFRESH BREEZESCLEAR0000000207066
1799-07-07T13:0049.60-10.382449.3ST AGNES SCILLYN84E64N76E153.00-26SWBW, WSW, WFRESH BREEZESCLEAR0000000207067
1799-07-08T12:0049.35-6.552239.3ST AGNES SCILLYN53E18S86E151.00-25W, SW, WSWFRESH BREEZES, AT NOON FRESH BREEZESAT NOON RAINCLEAR, AT NOON CLOUDY0100000207068
1799-07-09T12:0049.62-5.022009.3LIZARDN1/2E8-25WBS, NNW, SWFRESH BREEZESAT 4 VERY THICKCLOUDY0000000207069
1799-07-10T12:0049.87-3.953139.3TRAUL POINTN22E71S22W24.00-25NBE, E, NNWFRESH BREEZESAT NOON A VERY THICK FOGCLEAR0010000207070