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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 DIOMEDE cruise from Montevideo to Table Bay started at 1800-12-10 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.748554, 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: -35.408125 * Median Longitude: -18.665625 * South-bound Latitude: -37.530000 * West-bound Longitude: -53.000000 * North-bound Latitude: -30.130000 * East-bound Longitude: 38.970000
Date/Time Start: 1800-12-10T16:00:00 * Date/Time End: 1801-01-09T11:00:00
Event(s):
Diomede_18001210_NMM_ADM/L/D126 * Latitude Start: -35.970000 * Longitude Start: -55.650000 * Latitude End: -34.430000 * Longitude End: 16.950000 * Date/Time Start: 1800-12-10T00:00:00 * Date/Time End: 1801-01-09T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Diomede (4th Rate Frigate), Voyage: Montevideo - Table Bay, 1st Observer: Charles Elphinstone (Captain), 2nd Observer: William Bead Pascoe (1st Officer/Master), Company: Royal Navy, Other ship information: 50G 1114BM
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 State of the sea descriptionState sea descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 IdentificationIDCLIWOC 2.1 line number
Size:
607 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 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
ID
(CLIWOC 2.1 line number)
1800-12-10T16:00-34.90-53.00141.0CASTILLOS GRANDEN45WS45E54.0014NLIGHT AIRSHAZY000000054836
1800-12-11T15:00-35.72-51.17469.3CAPE ST MARYN67W54S59E95.0012NEBNLIGHT AIRS, AM FRESH BREEZESCLEAR000000054837
1800-12-12T15:00-35.60-50.3335012.3CAPE ST MARYN75W73N80E46.0012NNWFRESH BREEZES, THEN STRONG BREEZES AND SQUALLYCLEAR000000054838
1800-12-13T15:00-35.52-47.883059.3CAPE ST MARYN81E113N83E121.0012WNWMODERATE BREEZES, AM FRESH BREEZESCLEAR THEN CLOUDY000000054839
1800-12-14T15:00-35.67-47.529.3ISLE SAXEMBURGN76E421S87E163.0012SW1/2W, WBWFRESH BREEZESRAIN010000054840
1800-12-15T15:00-35.58-41.2730012.3CAPE ST MARYN85W225N88E158.007WNWSTRONG BREEZESHAZY000000054841
1800-12-16T15:00-35.08-37.871766.7ISLE SAXEMBURGN77E310N80E170.007SBESTRONG BREEZES AND SQUALLY, LATER MORE MODERATERAIN010000054842
1800-12-17T14:00-34.53-36.781401.0ISLE SAXEMBURGN75E297N58E63.005SEMODERATE, AM LIGHT AIRSCLOUDY000000054843
1800-12-18T14:00-35.12-35.473629.3ISLE SAXEMBURGN72E281S82E74.005VARIABLELIGHT BREEZES, AM FRESH BREEZESCLEAR, AM CLOUDY000000054844
1800-12-19T14:00-35.70-33.523206.7ISLE SAXEMBURGN67E256S69E103.005SBW, NWMODERATECLOUDY000000054845
1800-12-20T14:00-35.87-30.622726.7ISLE SAXEMBURGN60E213S86E141.002WSQUALLY, THEN MODERATESHOWERS OF RAIN110000054846
1800-12-21T14:00-34.95-28.201489.3ISLE SAXEMBURGN60E170N65E123.002SEBSLIGHT BREEZES, AM FRESH BREEZESCLEAR THEN CLOUDY000000054847
1800-12-22T14:00-33.78-25.971449.3ISLE SAXEMBURGN60E129N58E134.00-2SEBSFRESH BREEZESCLOUDY000000054848
1800-12-23T14:00-32.63-24.131339.3ISLE SAXEMBURGN67E98N53E116.00-2SEFRESH BREEZESCLOUDY000000054849
1800-12-24T14:00-33.30-24.321339.3ISLE SAXEMBURGN62E112S77W41.00-2SEFRESH BREEZESCLOUDY THEN CLEAR000000054850
1800-12-25T14:00-33.58-23.52362ISLE SAXEMBURGN58E108S63E45.00-2VARIABLEFRESH BREEZES THEN FINEDARK CLOUDY000000054851
1800-12-26T14:00-35.22-23.853620.0ISLE SAXEMBURGN41E121S19E101.00-2VARIABLEFRESH BREEZES THEN CALMSULTRYCLOUDY000000054852
1800-12-27T13:00-35.72-21.153552.6TRISTAN DACUNHAS79E148S70E102.00-5NA BREEZE, AM A LIGHT BREEZERAINHAZY010000054853
1800-12-28T13:00-36.45-18.2735512.3TRISTAN DACUNHAS81E94S72E145.00-5NSTRONG BREEZE AND SQUALLY000000054854
1800-12-29T13:00-36.70-15.033529.3TRISTAN DACUNHAS77E40S84E156.00-8NFRESH BREEZECLOUDY000000054855
1800-12-30T13:00-36.70-11.482379.3TRISTAN DACUNHAS88E8E170.00-11WSWFRESH BREEZECLEAR000000054856
1800-12-31T13:00-36.42-8.081699.3TRISTAN DACUNHAS78W55N85E165.00-11SFRESH BREEZESCLOUDY000000054857
1801-01-01T12:00-36.32-6.003621.0TRISTAN DACUNHAS81E85N87E101.00-14NW, VARIABLEFRESH BREEZES, AM LIGHT AIRSSWELL FORM SCLOUDY000000054858
1801-01-02T12:00-36.70-3.3723412.3TRISTAN DACUNHAS87W131S80E130.00-14NNE, WSWLIGHT BREEZES, AM STRONG BREEZESCLOUDY000000054859
1801-01-03T12:00-37.530.373449.3CAPE OF GOOD HOPEN76E309S83E180.00-16NFRESH BREEZESCLEAR000000054860
1801-01-04T12:00-36.934.273409.3CAPE OF GOOD HOPEN78E244N88E187.00-20NFRESH BREEZESCLEAR000000054861
1801-01-05T12:00-36.607.473519.3CAPE OF GOOD HOPEN77E193N82E155.00-20NBEFRESH BREEZESCLEAR000000054862
1801-01-06T09:00-30.1338.971426.7ALGOA BAYS71W238S66W168.00-27EBN, NE, SBELIGHT BREEZES, AM MODERATE BREEZESCLEAR THEN CLOUDY000000054863
1801-01-06T11:00-36.509.732829.3CAPE OF GOOD HOPEN73E150N87E110.00-22NWBWFRESH BREEZESHAZY000000054864
1801-01-07T11:00-36.6310.622932.6CAPE OF GOOD HOPEN71E137S79E50.00-22VARIABLE, NWLIGHT BREEZESCLEAR000000054865
1801-01-08T11:00-36.0013.922006.7CAPE OF GOOD HOPEN67E76N80E163.00-25SWMODERATE BREEZESCLOUDY000000054866
1801-01-09T11:00-34.9816.152006.7CAPE OF GOOD HOPEN63E28N61E125.00-25VARIABLE, SWMODERATE BREEZESCLOUDY000000054867