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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 MEDEA cruise from Table Bay to Portsmouth started at 1783-11-01 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750657, 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: 10.162807 * Median Longitude: -14.064035 * South-bound Latitude: -31.880000 * West-bound Longitude: -27.450000 * North-bound Latitude: 49.930000 * East-bound Longitude: 15.450000
Date/Time Start: 1783-11-01T00:00:00 * Date/Time End: 1784-01-03T12:00:00
Event(s):
Medea_17831101_NMM_ADM/L/M157 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: 50.750000 * Longitude End: -0.980000 * Date/Time Start: 1783-11-01T00:00:00 * Date/Time End: 1784-01-03T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Medea (6th Rate Frigate), Voyage: Table Bay - Portsmouth, 1st Observer: Erasmus Gower (Captain), Company: Royal Navy, Other ship information: 28G 593BM
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:
1125 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)
1783-11-01T00:00-33.783612.6TABLE BAYSSE6NW, W, VARIABLE, CALMLITTLE WINDGREAT SWELL FROM WCLOUDY0000000163743
1783-11-02T11:00-31.8815.4518219.0ST HELENAN50:51W519N45W195.00-21WBS, SW, SBW, SSWFIRST PART LITTLE WIND, MIDDLE AND LATTER FRESH GALES0000000163744
1783-11-03T11:00-29.6812.0516119.0ST HELENAN50W430N53W221.00-19SBW, SWBS, SFRESH GALESCLEAR0000000163745
1783-11-04T11:00-27.328.8313812.3ST HELENAN49:48W350N50W222.00-20SSW, S, SSEFRESH TRADECLEAR0000000163746
1783-11-05T12:00-24.935.5511812.3ST HELENAN49:31W272N52W228.00-17SSE, SEBS, SEFRESH TRADECLEAR0000000163747
1783-11-06T12:00-23.573.621072.6ST HELENAN50:14W231N49W141.00-17SE, S, SEBEFIRST AND MIDDLE PARTS MODERATE, LATTER LITTLE WINDLATTER HAZY0000000163748
1783-11-07T12:00-22.122.40972.6ST HELENAN51:48W197N41W100.00-16SSE, ESELITTLE WINDHAZY0000000163749
1783-11-08T12:00-20.901.23742.6ST HELENAN52:45W166N42W98.00-16ESE, ELITTLE WINDHAZY0000000163750
1783-11-09T12:00-20.370.75521.0ST HELENAN54:55W152N40W41.00-16ESE, E, ENELIGHT AIRSCLEAR0000000163751
1783-11-10T12:00-19.750.03971.0ST HELENAN56W134N44W50.00-16SEBE, VARIABLE, SSW, ESELIGHT AIRSCLEAR0000000163752
1783-11-11T12:00-18.92-0.853622.6ST HELENAN58:27W116N45W70.00-16VARIABLELITTLE WINDCLEAR0000000163753
1783-11-12T12:00-17.97-2.001192.6ST HELENAN61:45W83N47W86.00-16SELITTLE WINDCLEAR0000000163754
1783-11-13T12:00-16.67-3.381326.7ST HELENAN74:19W49N45W110.00-14SEBSMODERATE BREEZESCLEAR0000000163755
1783-11-14T12:00-15.95-5.601216.7ST HELENAS11N72W131.00-14SEMODERATECLOUDY0000000163756
1783-11-17T12:00-14.68-7.23999.3ASCENSIONN44W183N46W115.00-14ESEMODERATE TRADECLOUDY0000000163757
1783-11-18T13:00-13.40-8.821129.3ASCENSIONN43W146N49W122.00-12SEBEMODERATE TRADESEA VERY SMOOTHCLOUDY0000000163758
1783-11-19T13:00-11.62-11.071119.3ASCENSIONN37:58W94N57W168.00-13SEBEMODERATE TRADECLOUDY0000000163759
1783-11-20T13:00-8.63-13.5210312.3ASCENSIONN20:40W23N42W215.00-10ESEFRESH TRADEHAZY0000000163760
1783-11-21T13:00-6.18-15.3310212.3ST JAGON20:58W453N33W199.00-11ESEFRESH TRADEHAZY0000000163761
1783-11-22T13:00-3.30-16.8010212.3ST JAGON20:11W380N27W194.00-11ESEFRESH TRADEFREQUENT SHOWERS OF RAINCLOUDY1100000163762
1783-11-23T13:00-0.27-16.801469.3ST JAGON23:47W331N182.00-12ESE, SSEMODERATE TRADECLOUDY0000000163763
1783-11-24T13:002.05-16.801576.7ST JAGON27:32W289N139.00-12SBEMODERATE BREEZESSEA VERY SMOOTHCLOUDY0000000163764
1783-11-25T13:004.38-17.171676.7ST JAGON31:00W246N9W144.00-13SMODERATE BREEZESHAZY0000000163765
1783-11-26T13:006.07-17.552152.6ST JAGON32:00W211N16W106.00-10S, SWLITTLE WINDCLOUDY0000000163766
1783-11-27T13:006.75-17.953621.0ST JAGON34:09W197N15W43.00-10VARIABLELIGHT AIRSHARD RAIN IN EVENINGCLOUDY0100000163767
1783-11-28T13:007.37-17.773621.0ST JAGON37:02W187N12E38.00-10VARIABLELIGHT AIRSCLEAR0000000163768
1783-11-29T13:007.37-17.373621.0ST JAGON37W186W4.00-13VARIABLELIGHT AIRSCLEAR0000000163769
1783-11-30T13:007.70-17.703621.0ST JAGON37W180N19W23.00-11VARIABLEFIRST AND LATTER PARTS LIGHT AIRS AND CALMMIDDLE AND LATTER THUNDER AND LIGHTNINGMIDDLE AND LATTER RAIN0100100163770
1783-12-01T13:008.33-18.403621.0ST JAGON36:12W163N35W47.00-11VARIABLELIGHT AIRSCLOUDY0000000163771
1783-12-02T13:008.90-19.22122.6ST JAGON34:11W148N62W54.00-11NNELIGHT BREEZESCLOUDY0000000163772
1783-12-03T13:009.15-20.02122.6ST JAGON30:32W134N64W55.00-11NNELIGHT BREEZESLIGHTNING IN THE NIGHTCLOUDY0000100163773
1783-12-04T13:009.55-21.20236.7ST JAGON22:40W115N71W76.00-11NNE, N, NEBNMODERATE BREEZESCLOUDY0000000163774
1783-12-05T13:0010.58-22.35239.3ST JAGON14:24W89N48W94.00-11NEBNFRESH BREEZESHAZY0000000163775
1783-12-06T14:0011.90-23.48369.3ST JAGON62N44W110.00-9NNE, NEBN, NEFRESH BREEZESHAZY0000000163776
1783-12-07T14:0013.38-24.97359.3ST JAGON43:25E41N45W126.00-10NEFRESH BREEZESHAZY0000000163777
1783-12-08T00:0014.85459.3BRAVANE8NEFRESH BREEZESCLOUDY0000000163778
1783-12-09T14:0016.20-26.57469.3ST MARIAN4:18E417N45W120.00-10NEBN, NE, NEBEFRESH BREEZESCLOUDY0000000163779
1783-12-10T14:0017.82-27.45576.7ST MARIAN6:03E388N28W110.00-11NEBN-ENEMODERATE BREEZESSWELL FROM NCLEAR0000000163780
1783-12-11T14:0019.43-27.451242.6ST MARIAN4E351N97.00-11ENE-SELIGHT BREEZESCLEAR0000000163781
1783-12-12T14:0021.38-27.05906.7ST MARIAN3E313N11E120.00-11SE-EBSMODERATEHAZY0000000163782
1783-12-13T14:0024.65-25.9016722.6ST MARIAN1E247N17E205.00-13ESE, SE, SFIRST AND MIDDLE PARTS FRESH GALES, LATTER STRONG GAESLATTER HARD RAIN0100000163783
1783-12-14T14:0027.78-24.5230019.0ST MARIAN3:20W184N22E202.00-15SSE, SW, WSW, NWFIRST PART STRONG GALES, MIDDLE AND LATTER FRESH GALES WITH FREQENT SQUALLSFIRST PART HARD RAIN0100000163784
1783-12-15T14:0029.73-23.3727819.0ST MARIAN11:35W147N28E133.00-15WBN-WNWFRESH GALESCLEAR0000000163785
1783-12-16T13:0033.08-21.83106ST MARIAN35W91N22E217.00-18SWBS, SEBESQUALLYUNSETTLED0000000163786
1783-12-17T13:0035.45-20.5011719.0ST MARIAN68W84N27E160.00-18SE, EBS, SEFRESH GALESGREAT CONFUSED SEACLOUDY0000000163787
1783-12-18T13:0037.12-21.606122.6ST MICHAELSN78W84N30W130.00-18SE, E, EBNSTRONG GALESTHICKVERY GREAT SEA0000000163788
1783-12-22T13:0037.08-21.6711722.6ST MICHAELSN87E8WBS25.00-18SESTRONG GALESVERY GREAT SEA0000000163789
1783-12-23T13:0037.25-22.325022.6ST MICHAELSN85E18S82W30.00-18ESE-ENESTRONG GALESFREQUENT SHOWERS OF RAINCLOUDY1100000163790
1783-12-24T14:0037.10-22.721196.7ST MICHAELSN87E7NE45.00-16SEBS, SEMODERATERAIN0100000163791
1783-12-25T14:0037.98-25.08206SCILLYN48:34E360N70E34.00-19SE-SWUNSETTLEDFREQUENT SQUALLS OF RAIN1100000163792
1783-12-26T14:0039.45-22.882746.7SCILLYN47:23E312N50E136.00-19WSW, N, WNWMODERATE BREEZESCLEAR0000000163793
1783-12-27T13:0039.90-21.583416.7SCILLYN46:44E292N67E66.00-19NW, NMODERATE BREEZESCLEAR0000000163794
1783-12-28T13:0041.17-20.33116SCILLYN47:14E258N38E97.00-19N, VARIABLE, SEUNSETTLEDFREQUENT SHOWERS OF RAIN1100000163795
1783-12-29T13:0042.85-18.3391SCILLYN48E213N41E140.00-22S, VARIABLE, WNW, ESESQUALLYUNSETTLEDFREQUENT HARD SHOWERS OF RAIN1100000163796
1783-12-30T13:0044.90-15.90248SCILLYN50E156N42E170.00-22WNW, SWBW, WFREQUENT HARD SQUALLSVERY UNSETTLEDFREQUENT HARD SHOWERS OF RAIN1100000163797
1783-12-31T13:0046.47-14.122266.7SCILLYN54:43E120N39E118.00-22SWBS, VARIABLE, WSWMODERATEGREAT SWELL FROM WDARK HAZY WEATHER0000000163798
1784-01-01T13:0048.32-12.3229119.0SCILLYN66E80N37E130.00-24SW, W, NWFRESH GALESDRIZZLING RAINHAZY0100000163799
1784-01-02T13:0048.87-9.05362SCILLYN63:17E45N72E107.00-24VARIABLESQUALLYUNSETTLEDDARK0000000163800
1784-01-03T12:0049.93-5.6727019.0LIZARD LIGHT HOUSEN6N70E190.00-23SW, NW, WNWFRESH GALESTHICK0000000163801