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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 TROMP cruise from Table Bay to Spithead started at 1797-05-15 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752526, 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: 17.954896 * Median Longitude: -24.094688 * South-bound Latitude: -33.380000 * West-bound Longitude: -44.520000 * North-bound Latitude: 50.080000 * East-bound Longitude: 16.050000
Date/Time Start: 1797-05-15T00:00:00 * Date/Time End: 1797-12-12T12:00:00
Event(s):
Tromp_17970515_NMM_ADM/L/T260 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1797-05-15T00:00:00 * Date/Time End: 1797-12-12T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tromp (4th Rate Frigate), Voyage: Table Bay - Spithead, 1st Observer: William Douglas (Captain), Company: Royal Navy, Other ship information: 50G 1039BM
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 State of the sea descriptionState sea 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:
1851 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 
State sea 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)
1797-05-15T00:00-34.552819.3TABLE MOUNTAINENE12VARIABLE, NNE, WBNLIGHT AIRS, AM LIGHT BREEZES, FRESH BREEZESCLEAR, AM CLOUDY0000000258863
1797-05-16T11:00-33.3816.053259.3ST HELENAN49W526N49W106.00-24WSW, NBWFRESH BREEZES AND SQUALLY, AM FRESH BREEZESAM CLOUDY0000000258864
1797-05-17T11:00-32.1514.081342.6ST HELENAN48W482N52W124.00-24SSEMODERATE BREEZES, AM LIGHT BREEZESCLEAR0000000258865
1797-05-18T11:00-30.7812.851119.3ST HELENAN49W452N38W102.00-24E, NWBN, SEFRESH BREEZESCLEAR0000000258866
1797-05-19T11:00-29.4813.522916.7ST HELENAN52W444N25E84.00-24N, VARIABLE, NWMODERATE BREEZESAM RAINCLEAR, AM CLOUDY0100000258867
1797-05-20T11:00-28.1212.622692.6ST HELENAN53W417NWBN88.00-24SSE, WNWLIGHT AIRS, AM LIGHT BREEZESAM SMALL RAINCLEAR0100000258868
1797-05-21T11:00-26.4310.601576.7ST HELENAN56W372N44W156.00-23SSE, SFRESH BREEZES, AM MODERATE BREEZESRAINAM CLOUDY0100000258869
1797-05-22T11:00-24.408.421359.3ST HELENAN58W312NW1/4W165.00-23ESE, SSEMODERATE BREEZES, AM FRESH BREEZESCLOUDY0000000258870
1797-05-23T12:00-22.356.329212.3ST HELENAN55W216N44W170.00-21SSE, ESESTEADY BREEZES, AM STRONG BREEZESCLOUDY0000000258871
1797-05-24T12:00-20.633.821379.3ST HELENAN58W182N53W176.00-21SSEFRESH BREEZESCLOUDY0000000258872
1797-05-25T12:00-18.871.451166.7ST HELENAN62W122N52W171.00-19SEMODERATE BREEZESCLOUDY0000000258873
1797-05-26T12:00-16.570.031169.3ST HELENAN82W77NWBN165.00-19SEFRESH BREEZES AND SQUALLYAM SHOWERS OF RAINCLOUDY1100000258874
1797-05-27T12:00-15.80-2.231169.3ST HELENAW4:30S35N23W143.00-19ESE, SEFRESH BREEZES AND SQUALLYSHOWERS OF RAIN1100000258875
1797-05-28T12:00-15.93-4.08966.7ST HELENAW35S85:30W105.00-17SE, ESEMODERATE BREEZESCLOUDY0000000258876
1797-09-21T12:00-14.67-7.13969.3ST HELENAS47E37N47W112.00-17SE, ESEFRESH BREEZES AND SQUALLY, AM FRESH BREEZESAM CLOUDY0000000258877
1797-09-22T13:00-13.47-8.67982.6ASCENSIONNW157N51W115.00-15SE, ESEFRESH BREEZES, AM LIGHT WINDSCLOUDY0000000258878
1797-09-23T13:00-12.27-9.971202.6ASCENSIONN46W121N47W105.00-15SEBS, SELIGHT WINDSCLEAR, AM DARK CLOUDY WEATHER0000000258879
1797-09-24T13:00-11.23-11.331202.6ASCENSIONN41W88N52W102.00-15SEBS, SELIGHT BREEZES, LIGHT WINDSCLEAR, AM CLOUDY0000000258880
1797-09-25T13:00-10.12-12.671336.7ASCENSIONN36W54N49W103.00-13SE, SEBSMODERATE BREEZESFAIR0000000258881
1797-09-26T13:00-9.40-13.801452.6ASCENSIONN18W30N56W76.00-13SE, SSEMODERATE, AM LIGHT BREEZESCLOUDY, AM CLEAR0000000258882
1797-09-27T13:00-8.53-15.271222.6ASCENSIONN60E24N60W102.00-13SEMODERATE, AM LIGHT WINDSCLOUDY0000000258883
1797-09-28T13:00-6.65-16.53156ASCENSIONS58E48N30W130.00-13SSE, SBEFRESH BREEZES, AM SQUALLY0000000258884
1797-09-29T13:00-5.28-17.301226.7BONAVISTAN14W439N33W98.00-13SEMODERATE BREEZESAM SHOWERS OF RAINCLEAR, AM CLOUDY1100000258885
1797-09-30T13:00-4.32-18.27452.6BONAVISTAN12W415N39:50W77.00-11VARIABLE, ENE, NEBELIGHT AIRS INCLINABLE TO CALMS, AM LIGHT BREEZES0000000258886
1797-10-01T13:00-2.70-19.371022.6BONAVISTAN10W382NWBN115.00-11ESEMODERATE BREEZES, AM LIGHT BREEZESFAIR, AM CLEAR0000000258887
1797-10-02T13:00-1.43-20.05672.6BONAVISTAN3/4W383NNW1/2W84.00-12VARIABLE, SSE, E, EBNLIGHT WINDS, AM LIGHT AIRS, LIGHT BREEZESAM SHOWERS OF RAINCLEAR1100000258888
1797-10-03T13:000.43-20.821012.6BONAVISTAN7W318N25W119.00-12SE, SEBS, ESEMODERATE BREEZES, AM LIGHT BREEZESSHOWERS OF RAINHAZY, AM CLOUDY1100000258889
1797-10-04T13:002.27-21.23899.3FOGON8W258N13W112.00-12SSE, EBSLIGHT BREEZES, AM FRESH BREEZESCLOUDY0000000258890
1797-10-05T13:003.93-21.701676.7BRAVAN14W228N14W112.00-13SMODERATE BREEZESCLOUDY, AM FAIR, CLOUDY0000000258891
1797-10-06T13:005.33-22.221676.7BRAVAN16W200N20W91.00-13SMODERATE BREEZESCLOUDY0000000258892
1797-10-07T13:005.87-22.323621.0BRAVAN14W187NBW34.00-13VARIABLELIGHT BREEZES, LIGHT AIRS INCLINABLE TO CALMS, LIGHT AIRSAM HEAVY RAINFAIR0100000258893
1797-10-08T13:006.50-22.421781.0BRAVAN15W173N3/4W39.00-13VARIABLE, W, SBWLIGHT AIRS INCLINABLE TO CALMS, AM SQUALLY, LIGHT AIRSAM RAINAM CLOUDY0100100258894
1797-10-09T14:007.65-22.63362BRAVAN13W150N11W70.00-11VARIABLELIGHT BREEZES, AM SQUALLYAM HEAVY RAINCLOUDY0100000258895
1797-10-10T14:009.00-23.082939.3BRAVAN14W124N20W85.00-11VARIABLE, WBS, NWBWLIGHT AIRS INCLINABLE TO CALMS, AM LIGHT BREEZES, FRESH BREEZES AND SQUALLYAM RAINCLEAR0100000258896
1797-10-11T14:009.77-23.333622.6BRAVAN2E103N17W48.00-11VARIABLEMODERATE BREEZES, AM LIGHT AIRS, LIGHT BREEZESCLOUDY0000000258897
1797-10-12T14:0010.77-23.423629.3BRAVAN3E83N10W60.00-11VARIABLEFRESH BREEZESCLOUDY0000000258898
1797-10-13T14:0010.95-22.933042.6BRAVAN21W85N70E31.00-11VARIABLE, NWLIGHT BREEZESCLOUDY, AM CLEAR0000000258899
1797-10-14T14:0011.78-23.4279CORVON14W575N30W58.00-11ELIGHT BREEZES, AM SQUALLYAM RAINCLOUDY0100000258900
1797-10-15T14:0012.75-24.08676.7BRAVAN16W44NWBN70.00-12ENE, EBNMODERATE BREEZESCLEAR0000000258901
1797-10-16T14:0012.77-24.223481.0BRAVAN15W41W1/2N10.00-12NLIGHT BREEZES, LIGHT AIRS0000100258902
1797-10-17T14:0013.45-25.25226.7BRAVANNE1/4E26NWBW76.00-12NEBNLIGHT BREEZES, AM MODERATECLOUDY0000000258903
1797-10-18T14:0014.38-26.33789.3CORVONBW510N49W85.00-12ELIGHT BREEZES, AM FRESH BREEZESCLOUDY0000000258904
1797-10-19T14:0015.37-27.35566.7CORVON8:30W495NW85.00-12NEBE, ENEMODERATE BREEZESFAIR0000000258905
1797-10-20T14:0016.13-28.23801.0CORVON7W471N49W70.00-10VARIABLE, EMODERATE BREEZES, AM LIGHT AIRSCLOUDY0000000258906
1797-10-21T14:0017.62-29.13362CORVON4:30W445N31W104.00-12VARIABLEMODERATE BREEZES, AM SQUALLYCLOUDY0000000258907
1797-10-22T14:0019.07-29.78789.3FLORESN3W416N23W95.00-12VARIABLE, EMODERATE BREEZES, AM FRESH BREEZES AND SQUALLYCLOUDY0000000258908
1797-10-23T14:0021.10-30.201019.3CORVON2W375N11W122.00-12E, ESEFRESH BREEZESCLOUDY0000000258909
1797-10-24T14:0022.40-31.00782.6CORVON345N30W89.00-12NEBN, ESQUALLY, AM LIGHT BREEZESRAINAM CLOUDY0100000258910
1797-10-25T14:0022.85-31.58320.6CORVON2E337N50W44.00-13NEBE, NELIGHT BREEZES, AM LIGHT AIRS INCLINABLE TO CALMSFAIR0000000258911
1797-10-26T14:0023.30-32.383479.3CORVON3:30E327N59W53.00-13VARIABLE, NCALM, AM FRESH BREEZES AND SQUALLY0000000258912
1797-10-27T14:0024.10-33.5045CORVON6E315N55W84.00-11ENE, NEBEFRESH BREEZES, AM LIGHT BREEZES, SQUALLYCLEAR, AM CLOUDY0000000258913
1797-10-28T14:0024.23-34.02796.7CORVON8E309N74W29.00-11VARIABLE, ECALM, AM MODERATE BREEZESAM CLOUDY0000000258914
1797-10-29T14:0024.95-34.571922.6CORVON11W302N35W52.00-11WSW, VARIABLE, SSWLIGHT BREEZESCLOUDY0000000258915
1797-10-30T14:0026.05-35.322596.7CORVON15E283N32W78.00-11VARIABLE, WLIGHT BREEZES, AM MODERATE BREEZESCLOUDY0000000258916
1797-10-31T14:0026.77-36.053496.7CORVON18E272N46W57.00-11VARIABLE, NMODERATE BREEZES AND SQUALLYRAINAM CLOUDY0100100258917
1797-11-01T14:0027.38-37.20349.3CORVON22E263N231W72.00-11VARIABLE, NEMODERATE BREEZES, AM FRESH BREEZES AND SQUALLYHEAVY SWELL FROM NECLOUDY0000000258918
1797-11-02T15:0028.72-38.2835919.0CORVON29E249N36W99.00-12E, NE, VARIABLE, NBEFRESH BREEZES, FRESH GALESCLEAR, AM FAIR0000000258919
1797-11-03T15:0029.88-39.00786.7CORVON35E239NNW1/2W80.00-12VARIABLE, EFRESH BREEZES, AM MODERATE BREEZESCLOUDY0000000258920
1797-11-04T15:0030.65-39.55789.3CORVON38E228NNW3/4W56.00-12W, VARIABLE, ELIGHT AIRS INCLINABLE TO CALMS, AM FRESH BREEZESAM CLOUDY0000000258921
1797-11-05T15:0030.88-40.3333CORVON41E233N73W47.00-12VARIABLE, NEMODERATE BREEZES, AM SQUALLYAM RAINCLOUDY0100000258922
1797-11-06T15:0030.90-41.533489.3CORVON42E241W60.00-12E, VARIABLE, NMODERATE, AM FRESH BREEZESFAIR, AM CLOUDY0000000258923
1797-11-07T15:0031.45-42.13339.3CORVON42E245NW47.00-12VARIABLE, NEMODERATE BREEZES, AM FRESH BREEZESCLOUDY0000000258924
1797-11-08T15:0031.83-43.053629.3CORVON52E259N67W59.00-10VARIABLEMODERATE BREEZES, SQUALLY, AM FRESH BREEZESCLEAR, AM CLOUDY0000000258925
1797-11-09T15:0032.30-42.052586.7CORVON51E237N61E63.00-12VARIABLE, WMODERATEFAIR0000000258926
1797-11-10T15:0033.18-42.78779.3CORVON56E233N35W65.00-13EFRESH BREEZESCLOUDY, AM HAZY0000000258927
1797-11-11T15:0035.08-43.651009.3CORVON67E229NBE1/2E119.00-13SEBE, SE, ESEMODERATE BREEZES, SQUALLY, AM FRESH BREEZESCLEAR0000000258928
1797-11-12T15:0035.38-43.301671.0CORVON67E215NE1/4N25.00-13W, SMODERATE, INCLINABLE TO CALMSFAIR0000000258929
1797-11-13T15:0035.35-42.6777CORVON66E207E30.00-13VARIABLE, EMODERATE BREEZES, FRESH BREEZES, AM SQUALLYCLOUDY0000000258930
1797-11-14T15:0035.90-43.752119.0CORVON71E224N60W71.00-13ENE, VARIABLE, NEBNFRESH BREEZES, AM FRESH GALES AND SQUALLYCLOUDY0000000258931
1797-11-15T15:0036.85-44.05669.3CORVON75E223N15W60.00-13VARIABLE, EBNFRESH BREEZESCLOUDY0000000258932
1797-11-16T15:0038.15-44.52629.3CORVON82E224N16W83.00-17E, EBNMODERATE BREEZES, AM FRESH BREEZES AND SQUALLYAM RAINCLOUDY0100000258933
1797-11-17T15:0039.10-43.47849.3LIZARDN29E591NNE1/4E85.00-17E, EBSMODERATE BREEZES, AM FRESH BREEZESCLOUDY, AM CLEAR0000000258934
1797-11-18T15:0040.22-42.6511822.6LIZARDN29E566N29E76.00-17SEBE, SEFRESH BREEZES AND SQUALLY, AM STRONG GALES AND SQUALLYAM RAIN0100000258935
1797-11-19T15:0041.70-42.42106LIZARDN73E555N1/2E90.00-18ESE, VARIABLE, SEBEFRESH BREEZES, AM SQUALLYCLOUDY0000000258936
1797-11-20T15:0043.05-42.7510219.0LIZARDN75E539NBW81.00-22SEBS, VARIABLE, SEBEFRESH GALES AND SQUALLYAM RAIN0100000258937
1797-11-21T15:0043.95-42.2510119.0LIZARDN14E509N21E58.00-23SBW, VARIABLE, S, SEBESTRONG GALES , AM SQUALLY, FRESH GALESDRIZZLING RAINCLOUDY0100000258938
1797-11-22T15:0044.95-41.3011219.0LIZARDN78:20E498NEBN70.00-23VARIABLE, SEFRESH BREEZES, AM FRESH GALES AND SQUALLYCLOUDY0000000258939
1797-11-23T15:0045.73-41.5310126.8LIZARDN80E489N12W48.00-23EBS, VARIABLE, SEBEFRESH GALES AND SQUALLY, AM HARD GALES AND SQUALLYHEAVY RAINVERY HEAVY SEA0100000258940
1797-11-24T15:0046.12-41.953626.7LIZARDN81E502NW1/2N30.00-23VARIABLEHARD GALES, AM MORE MODERATERAINCLOUDY0100000258941
1797-11-25T15:0045.48-40.9522LIZARDN81E500S50E57.00-23VARIABLE, NEFRESH BREEZES, AM SQUALLYAM SHOWERS OF RAINCLOUDY1100000258942
1797-11-26T15:0045.23-40.883626.7LIZARDN78E493S22E15.00-23E, VARIABLEMODERATE BREEZESCLWEAR0000000258943
1797-11-27T15:0045.08-38.733609.3LIZARDN79E515E1/2S91.00-23NW, NNW, WNW, NNELIGHT BREEZES, AM FRESH BREEZESCLOUDY0000000258944
1797-11-28T15:0045.27-37.8536012.3LIZARDN77E466N80E114.00-23N, NNW, NBE, NNEMODERATE BREEZES, AM STRONG BREEZESCLOUDY0000000258945
1797-11-29T14:0045.63-35.651686.7LIZARDN78:30E425EBN96.00-23SBE, S, WBS, SBWLIGHT BREEZES, AM MODERATECLEAR0000000258946
1797-11-30T14:0045.48-34.703626.7LIZARDN78E419EBS42.00-23VARIABLELIGHT AIRS, AM MODERATEAM CLOUDY0000000258947
1797-12-01T14:0046.20-31.552469.3LIZARDN79E375N72E138.00-24WFRESH BREEZESCLOUDY0000000258948
1797-12-02T14:0046.13-30.272462.6LIZARDN77E352E4N56.00-24E, VARIABLE, SEBS, WMODERATE, AM LIGHT BREEZESCLEAR0000000258949
1797-12-03T14:0046.88-27.571456.7LIZARDN79E307N69E127.00-24S, SW, SBEMODERATE BREEZES, AM MODERATESMALL RAINCLEAR, AM CLOUDY0100000258950
1797-12-04T14:0047.50-24.582209.3LIZARDN80E265EBN1/2N128.00-28SSW, WSWFRESH BREEZES, MODERTA EBREEZES, FRESH BREEZESHAZY, AM CLEAR0000000258951
1797-12-05T13:0048.00-22.08243LIZARDN81E233N16E10.00-27WFRESH BREEZES, SQUALLYRAINHAZY0100000258952
1797-12-06T13:0047.42-21.52662.6LIZARDN77E222SEBS42.00-24VARIABLE, ELIGHT AIRS INCLINABLE TO CALMS, AM MODERATE, LIGHT BREEZESSWELLAM HAZY0000000258953
1797-12-07T13:0047.83-19.331986.7LIZARDN78E192N16E91.00-27SWCALM, LIGHT BREEZES, AM MODERATETHICKHAZY0000000258954
1797-12-08T13:0048.35-15.802219.3LIZARDN78E148EBN145.00-27WBN, NW, WSWMODERATE, AM FRESH BREEZESHAZY, AM CLOUDY0000000258955
1797-12-09T13:0048.88-11.73244LIZARDN76E92NBE164.00-26WFRESH BREEZES, AM SQUALLYCLEAR0000000258956
1797-12-10T13:0049.55-7.62244ST AGNESN64E16EBN1/4N167.00-26WFRESH BREEZES, AM SQUALLYAM RAINCLOUDY0100000258957
1797-12-11T12:0049.40-4.88291LIZARDN24W12S85E108.00-24NNE, NBE, NWMODERATE, AM SQUALLYAM RAINCLOUDY0100000258958
1797-12-12T12:0050.08-1.8215719.0DUNNOSENEBN131N71E124.00-23SLIGHT BREEZES, FRESH BREEZES, AM FRESH GALES AND SQUALLYCLEAR, CLOUDY0000000258959