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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 RUBY cruise from Table Bay to The Downs started at 1797-04-15 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.751827, 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: 11.081714 * Median Longitude: -18.793000 * South-bound Latitude: -33.330000 * West-bound Longitude: -35.280000 * North-bound Latitude: 50.650000 * East-bound Longitude: 17.870000
Date/Time Start: 1797-04-15T11:00:00 * Date/Time End: 1797-07-19T12:00:00
Event(s):
Ruby_17970415_NMM_ADM/L/R331 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: 47.720000 * Longitude End: -5.280000 * Date/Time Start: 1797-04-15T00:00:00 * Date/Time End: 1797-07-19T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Ruby (3rd Rate Frigate), Voyage: Table Bay - Downs, 1st Observer: Jacob Waller (Captain), Company: Royal Navy, Other ship information: 64G 1369BM
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 Precipitation descriptionPrecip descr
16 ClearnessClearness
17 GustsGusts1 If wind gusts are reported
18 Precipitation/RainRain1 If rain was reported
19 FogFog1 If fog was reported
20 Snow typeSnow1 If snow was reported
21 ThunderThunder1 If thunder and or lightning was reported
22 HailHail1 If hail was reported
23 Sea iceSea ice1 If sea-ice or icebergs were reported
24 CommentComment
25 IdentificationIDCLIWOC 2.1 line number
Size:
1347 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 
Precip descr
16 
Clearness
17 
Gusts
(1 If wind gusts are reported)
18 
Rain
(1 If rain was reported)
19 
Fog
(1 If fog was reported)
20 
Snow
(1 If snow was reported)
21 
Thunder
(1 If thunder and or lightning...)
22 
Hail
(1 If hail was reported)
23 
Sea ice
(1 If sea-ice or icebergs were...)
24 
Comment
25 
ID
(CLIWOC 2.1 line number)
1797-04-15T11:00-33.3317.872891.0CAPE GOOD HOPES30W6N38W42.00-26SE, NWLIGHT AIRSAM CLEAR0000000217363
1797-04-16T11:00-31.3015.821909.3ST HELENAN51:48W493N43W167.00-24SW, SWBSMODERATE BREEZES, AM FRESH BREEZESCLEAR, AM HAZY0000000217364
1797-04-17T11:00-29.2813.881796.7ST HELENAN52:56W439N39W160.00-24SSE, SSWMODERATE BREEZESHAZY0000000217365
1797-04-18T11:00-27.5011.1815810.0ST HELENAN54:40W401N53W178.00-22SBRISK TRADEHAZY0000000217366
1797-04-19T11:00-26.078.901466.7ST HELENAN53:20W340N54W151.00-23SEBS, SBEMODERATE BREEZESCLOUDY0000000217367
1797-04-20T12:00-24.557.301376.7ST HELENAN54:17W295N43:30W127.00-21SSELIGHT BREEZES, AM PLEASANT BREEZESCLOUDY0000000217368
1797-04-21T12:00-23.256.081596.7ST HELENAN54:32W252N42:30W100.00-21SPLEASANT BREEZESHAZY0000000217369
1797-04-22T12:00-21.724.501826.7ST HELENAN56:48W212N42W124.00-21SSWMODERATE BREEZES, AM PLEASANT BREEZESCLEAR0000000217370
1797-04-23T12:00-20.522.871032.6ST HELENAN58:22W175N53W120.00-21SEBELIGHT BREEZESCLOUDY0000000217371
1797-04-24T12:00-19.051.151056.7ST HELENAN60:19W126N52W142.00-19SEBEPLEASANT BREEZESCLEAR0000000217372
1797-04-25T12:00-18.07-0.201056.7ST HELENAN62:55W94N57W109.00-19ENE, SEBEMODERATE BREEZES, AM PLEASANT BREEZESCLOUDY0000000a trivial correction was made in this observation217373
1797-04-26T12:00-16.73-2.93732.6ST HELENAN67:09W42N58W150.00-17ELIGHT BREEZESCLOUDY0000000a trivial correction was made in this observation217374
1797-04-27T12:00-16.00-3.121296.7ST HELENAW20N57W81.00-17SEBSPLEASANT BREEZESCLEAR0000000a trivial correction was made in this observation217375
1797-04-28T00:00-16.021351.0EXTREMES OF THE ISLANDWBN1/2N31VARIABLE, SELIGHT AIRSCLEAR0000000217376
1797-05-24T12:00-15.17-6.551412.6ASCENSIONN43:35W210N42:30W62.00-17SSEFRESH BREEZES, AM LIGHT BREEZESHAZY0000000217377
1797-05-25T13:00-13.60-8.221209.3ASCENSIONN47W166N45W133.00-15ESE, SEFRESH BREEZESCLOUDY0000000217378
1797-05-26T13:00-11.87-9.95866.7ASCENSIONN47:27W116N45W147.00-15EBS, EBSMODERATECLOUDY0000000217379
1797-05-27T13:00-10.20-11.531439.3ASCENSIONN52:08W73N45W137.00-15SSEFRESH BREEZESHAZY0000000217380
1797-05-28T13:00-8.78-12.831456.7ASCENSIONN61W35N42W115.00-13SSEMODERATE BREEZESAM DRIZZLING RAINCLOUDY0100000217381
1797-05-29T13:00-7.73-14.651456.7ASCENSIONSEBS8N50W126.00-13SSEMODERATECLOUDY0000000217382
1797-05-30T13:00-6.40-15.921456.7COURSE TO CROSS THE LINE IN 22WN44W177N43W110.00-13ESE, VARIABLE, SSEPLEASANT BREEZESCLOUDY0000000217383
1797-05-31T13:00-5.33-17.15556.7COURSE TO CROSS THE LINE IN 22WN42:17W158N49W97.00-13VARIABLE, NEBN, ENEMODERATE BREEZESCLEAR, AM CLOUDY0000000217384
1797-06-01T13:00-3.75-18.67456.7COURSE TO CROSS THE LINE IN 22WN41:30W109N44W138.00-11NEBEMODERATECLOUDY0000000217385
1797-06-02T13:00-2.40-19.50566.7COURSE TO CROSS THE LINE IN 22WN46W69N35W99.00-12ENEMODERATE BREEZESFAIR0000000217386
1797-06-03T13:00-0.97-20.92676.7COURSE TO CROSS THE LINE IN 22WN36W24N33W110.00-12EBS, SE, EBNMODERATE BREEZESFAIR0000000217387
1797-06-04T13:000.35-21.371016.7CORVON28:45W338N28W90.00-12NNE, ESEMODERATE BREEZESCLOUDY, AM DARK CLOUDY WEATHER0000000217388
1797-06-05T13:000.57-21.37561.0ST ANTONION10:30W337N13.00-12SSE, ENELIGHT AIRS INCLINABLE TO CALMSHARD SHOWERS OF RAIN1100000217389
1797-06-06T13:001.72-21.601126.7ST ANTONION1/2W141N11W71.00-12SEBEMODERATE BREEZESCLOUDY0000000217390
1797-06-07T13:003.05-21.903020.0ST ANTONION279N11W81.00-13EBN, NWCALMCLOUDY0000000217391
1797-06-08T13:004.15-21.901220.0ST ANTONION257N66.00-13VARIABLE, SECALMRAINHAZY0100000217392
1797-06-09T13:004.90-21.621450.0ST ANTONION4:10W242N20E49.00-13NNW, SSELIGHT AIRS, AM CALMSMALL RAINCLOUDY0100000217393
1797-06-10T13:005.78-21.622801.0ST ANTONION6W227N52.00-13SSE, VARIABLE, WNWLIGHT AIRS INCLINABLE TO CALMS0000000217394
1797-06-11T13:006.60-21.551222.6ST ANTONION8:12W210N5E50.00-13NE, SELIGHT BREEZESRAINHAZY0100000217395
1797-06-12T13:007.00-21.4543ST ANTONION8W201N12E26.00-13VARIABLE, NEBESQUALLYSHOWERS OF RAIN1100000217396
1797-06-13T13:007.17-21.60358ST ANTONION13:!4W200N38W13.00-13NEBN, NBELIGHT INCLINABLE TO CALMS0000000217397
1797-06-14T13:008.33-22.3354ST ANTONION9:48W176N37W57.00-14VARIABLE, ENELIGHT INCLINABLE TO CALMS0000000217398
1797-06-15T14:009.28-23.25456.7ST ANTONION4:27W155N44W79.00-11NEBN, NEBEMODERATE BREEZESCLOUDY0000000217399
1797-06-16T14:009.87-24.17349.3N58W63.00-11NNE, NEFRESH BREEZESHAZY0000000217400
1797-06-17T14:0010.52-25.25122.6CORVON9:26W592N65W84.00-11NEBN, NNELIGHT BREEZESHAZY0000000217401
1797-06-18T14:0011.92-26.03349.3ST ANTONION27:21E114N29W95.00-11ENE, NEMODERATE BREEZES, FRESH BREEZESCLOUDY, HAZY0000000217402
1797-06-19T14:0013.27-26.62446.7ST JAGON78:23E106N34W98.00-12ENE, NEBEMODERATEHAZY0000000217403
1797-06-20T14:0014.73-28.08589.3ST JAGOE130N36W112.00-10NEBE, ENEFRESH BREEZESHAZY, AM CLOUDY0000000217404
1797-06-21T14:0016.33-29.553512.3CORVON1:13E470N42W126.00-10NEBE, NESTRONG BREEZESCLOUDY0000000217405
1797-06-22T14:0018.27-30.78339.3CORVON4:05E430N32W128.00-12NEBE, NEFRESH BREEZESCLOUDY0000000217406
1797-06-23T14:0020.07-30.80449.3CORVON5:30E397N30W123.00-12ENE, NEBEFRESH BREEZESHAZY0000000217407
1797-06-24T14:0021.67-32.073596.7CORVON13:30E374N40W126.00-12EBN, NBEMODERATE BREEZESCLEAR0000000a trivial correction was made in this observation217408
1797-06-25T14:0023.33-33.95456.7CORVON17:30E342N21W108.00-11ENE, VARIABLE, NEBEMODERATE BREEZESCLEAR0000000217409
1797-06-26T14:0025.23-34.07682.6CORVON18:50E305N3W116.00-11EBS, EBNLIGHT BREEZESCLEAR0000000217410
1797-06-27T14:0027.58-34.33659.3CORVON23:20E270N5W140.00-14EBNFRESH BREEZESCLEAR0000000217411
1797-06-28T14:0029.37-34.72769.3CORVON28:30E236N11W109.00-14EBN, EFRESH BREEZESCLEAR0000000217412
1797-06-29T14:0030.50-34.90992.6CORVON3E217N7W78.00-14EBS, VARIABLE, ESELIGHT BREEZESHAZY0000000217413
1797-06-30T14:0031.23-34.90766.7CORVON34E179N19W47.00-14NEBE, EMODERATE BREEZESCLOUDY0000000217414
1797-07-01T14:0031.92-35.28651.0CORVON32:26W150N6W41.00-14ESE, EBNLIGHT BREEZES, AM LIGHT AIRS INCLINABLE TO CALMSCLOUDY0000000217415
1797-07-02T14:0032.70-35.001191.0CORVON38:30W179N17E50.00-16SELIGHT AIRS INCLINABLE TO CALMS0000000217416
1797-07-03T14:0033.77-34.601982.6CORVON39:30W154N17E67.00-16SBW, SWBSLIGHT BREEZESCLEAR0000000217417
1797-07-04T14:0034.75-34.231752.6CORVON44:30E139N17E62.00-16VARIABLE, SBWMODERATE BREEZES, LIGHT BREEZESDRIZZLING RAINCLEAR0100000217418
1797-07-05T14:0036.12-33.822092.6CORVON47:30E105N15E87.00-16SW, SWLIGHT BREEZESHAZY0000000217419
1797-07-06T14:0037.75-33.672746.7CORVON62:10E84N4E97.00-20WNWMODERATE BREEZES0000000217420
1797-07-07T14:0039.58-33.671956.7CORVON88:11E73N110.00-20SWBSMODERATE BREEESCLEAR0000000217421
1797-07-08T14:0041.77-33.121959.3CAPE CLEARN59:30E374N12E123.00-20SWBSFRESH BREEZESCLEAR0000000217422
1797-07-09T14:0042.53-32.451341.0LIZARDN70E432N33E54.00-24NE-SSELIGHT AIRSRAINHAZY0100000217423
1797-07-10T14:0043.43-31.831346.7LIZARDN71:40E414N30E60.00-24SSEMODERATE BREEZESHAZY0000000217424
1797-07-11T14:0043.77-31.022691.0LIZARDN72E400N52E41.00-24NNE, WNWLIGHT AIRS INCLINABLE TO CALMS0000000217425
1797-07-12T14:0045.08-28.983476.7LIZARDN74E346N49E115.00-24NW, NBEMODERATE BREEZESCLOUDY0000000217426
1797-07-13T14:0046.05-26.7329119.0LANDS ENDN76:08E65N58E115.00-24NE, VARIABLE, NWFRESH GALESCLOUDY0000000217427
1797-07-14T14:0047.18-24.533309.3LIZARDN78:21E274N56E120.00-24NWBN, N1/2WFRESH BREEZESHAZY0000000217428
1797-07-15T13:0048.95-22.0531119.0LIZARDN84:03E240N43E138.00-27NW, NNWFRESH GALESCLOUDY0000000217429
1797-07-16T13:0050.40-19.15288CAPE CLEARN81:16E119N50E146.00-27WSW, NWFRESH BREEZES, AM SQUALLYAM HARD SHOWERS OF RAINCLOUDY1100000217430
1797-07-17T13:0050.65-14.882889.3LIZARDS86:47E147E164.00-27NWBW, WBS, NWFRESH BREEZESAM SHOWERS OF RAINHAZY1100000217431
1797-07-18T13:0050.37-10.5522222.6SCILLYS84:43E72S87:30E168.00-26WSWSTRONG GALESCLOUDY0000000217432
1797-07-19T12:0049.73-5.5822422.6ST AGNESS55:18E71S81E194.00-24SW, WSWSTRONG GALESCLOUDY0000000217433