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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 SPHYNX cruise from Table Bay to St. Helena started at 1798-10-03 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752180, 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: -23.862000 * Median Longitude: -4.396182 * South-bound Latitude: -34.670000 * West-bound Longitude: -16.280000 * North-bound Latitude: -15.720000 * East-bound Longitude: 16.930000
Date/Time Start: 1798-10-03T11:00:00 * Date/Time End: 1798-12-20T13:00:00
Event(s):
Sphynx_17981003_NMM_ADM/L/S358 * Latitude Start: -34.430000 * Longitude Start: 16.950000 * Latitude End: -15.890000 * Longitude End: -5.750000 * Date/Time Start: 1798-10-03T00:00:00 * Date/Time End: 1798-12-20T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Sphynx (6th Rate Frigate), Voyage: Table Bay - St Helena, 1st Observer: Thomas Alexander (Captain), Company: Royal Navy, Other ship information: 20G 429BM
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:
1047 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)
1798-10-03T11:00-32.8516.933026.7ST HELENAN50:33W533N51W90.00-24SW, VARIABLE, SW, S, SBW, NWBNPM LIGHT BREEZES, AT 1 SPRUNG UP A BREEZEPM CLEAR0000000239201
1798-10-04T11:00-30.9513.5018912.3ST HELENAN49:31W463N57W209.00-25S, SSE, SWBSPM FRESH BREEZES, AT 5 STRONG BREEZESPM CLOUDY, AT NOON CLEAR0000000239202
1798-10-05T11:00-28.8010.851806.7ST HELENAN49:57W400N47W189.00-23SWBS, SW, SSWPM FRESH BREEZES, AT 8 MODERATE BREEZESPM CLEAR, AT 8 CLOUDY0000000239203
1798-10-06T11:00-26.938.882136.7ST HELENAN51W350N43W153.00-23SW, VARIABLE, S, SSE, SWBWPM MODERATE BREEZES, AT 5 FRESH BREEZES, AT NOON MODERATE BREEZESPM CLOUDY, AT 5 HAZY0000000239204
1798-10-07T12:00-25.486.88125ST HELENAN50:58W304N51W138.00-21SEBSPM MODERATE BREEZESPM HAZY0000000239205
1798-10-08T12:00-24.355.152272.6ST HELENAN50:33W265N54W116.00-21VARIABLE, WSWPM LIGHT BREEZES, AM MODERATE BREEZES, AT NOON LIGHT BREEZESPM CLOUDY0000000239206
1798-10-09T12:00-23.404.25182ST HELENAN51:34W241N41W75.00-21VARIABLE, SSWPM LIGHT BREEZESPM CLOUDY0000000239207
1798-10-10T12:00-22.633.521826.7ST HELENAN52:32W221N41W61.00-21VARIABLE, SSE, SE, SSE, SSWPM LIGHT AIRS, AT NOON MODERATE BREEZESPM CLEAR, AT NOON HAZY0000000239208
1798-10-11T12:00-20.931.85116ST HELENAN55:20W176N42W139.00-19SEBS, SSE, SEPM FRESH BREEZESPM CLEAR0000000239209
1798-10-12T12:00-19.050.181279.3ST HELENAN61W136N40W146.00-19SSE, SEBS, SSE, SEBSPM LIGHT BREEZES, AM FRESH BREEZE, AT 9 FRESH BREEZES AND SQUALLSAT 9 INTERVALS OF LIGHT RAINPM CLOUDY0100000239210
1798-10-13T12:00-17.57-1.83139ST HELENAN66:38W83N52W146.00-19SEBS, ESE, SSEPM MODERATE BREEZESPM HAZY0000000239211
1798-10-14T12:00-16.27-3.481186.7ST HELENAN81:17W46N51W122.00-17VARIABLE, SEPM FRESH BREEZES, AM MODERATE BREEZESAT SMALL DRIZZLING RAINHEAVY SWELL FROM THE SEPM CLEAR, AT 10 HAZY0100000239212
1798-10-31T12:00-16.88-5.921186.7ST HELENAN9E20N9W59.00-17ESE, SEBE, SE, ESE, SEAT 4 MODERATE BREEZES, AM LIGHT BREEZES, AT NOON MODERATE BREEZESAT 4 CLOUDY, AT NOON HAZY0000000239213
1798-11-01T12:00-15.72-5.081189.3ST HELENAS73W14N73E41.00-17VARIABLE, SEPM FRESH BREEZES, AM LIGHT BREEZES, AT NOON FRESH BREEZESAM CLOUDY0000000239214
1798-11-02T12:00-15.73-4.751416.7ST HELENAS79W20S87E19.00-17VARIABLE, SSEPM MODERATE BREEZES, AT NOON MODERATE BREEZESPM CLOUDY, AT NOON CLEAR0000000239215
1798-11-03T12:00-16.28-5.02966.7ST HELENAN63W16S25W36.00-17VARIABLE, ESEPM MODERATE BREEZES, AT 8 MODERATEPM CLEAR, AT 8 CLOUDY0000000239216
1798-11-04T12:00-16.32-4.98969.3ST HELENAN62W17S43E3.00-17VARIABLE, SE, ESEPM LIGHT BREEZES, AM FRESH BREEZESPM PLEASANT WEATHER, AM CLOUDY0000000239217
1798-11-05T12:00-16.08-4.953629.3ST HELENAN78W16N8E14.00-17SE, VARIABLE, VARIABLEPM MODERATE BREEZES, AT 8 FRESH BREEZESPM CLEAR, AT 8 CLOUDY0000000239218
1798-11-08T12:00-16.55-6.0096ST HELENAN34E13S34W38.00-17SE, VARIABLE, SE, ESEPM FRESH BREEZESPM CLEAR0000000239219
1798-11-09T12:00-16.82-5.881189.3ST HELENAN8E5S41E21.00-17SEPM FRESH BREEZES, AT 12 FRESH BREEZES AND SQUALLY, AT NOON FRESH BREEZESPM CLOUDY, AT NOON HAZY0000000239220
1798-11-10T12:00-16.25-5.081189.3JAMES TOWNN28E8S28W23.00-17VARIABLE, SEBE, SEPM MODERATE BREEZES, AT 6 SQUALLY, AT 12 FRESH BREEZES AND SQUALLYAT 6 RAINPM CLOUDY0100000239221
1798-11-11T12:00-16.18-5.52118N81E25.00-17VARIABLE, ESE, SEPM MODERATE BREEZESPM HAZY0000000239222
1798-11-12T12:00-15.92-5.13107ST HELENAN61E32.00-17SE, VARIABLE, SEBEPM FRESH BREEZESPM CLOUDY0000000239223
1798-11-13T12:00-15.77-4.981079.3ST HELENAN19E10.00-17SE, SEBS, SSE, SEBEPM FRESH BREEZES, AM MODERATE BREEZES AT 10 FRESH BREEZES AND SQUALLYPM CLOUDY0000000239224
1798-11-14T12:00-16.03-4.921186.7ST HELENAS14E16.00-17VARIABLE, SEBE, SEBS, SEPM MODERATE BREEZES, AT 6 FRESH BREEZES AND SQUALLY, AT 12 MODERATE BREEZESPM CLOUDY0000000239225
1798-11-15T12:00-16.58-5.02118ST HELENAS10W34.00-17VARIABLE, SEPM MODERATE BREEZESPM CLOUDY0000000239226
1798-11-16T12:00-16.68-4.801189.3ST HELENAS63E13.00-17SEBS, SEBE, SEPM FRESH BREEZES, AT 12 FRESH BREEZES AND SQUALLY, AM MODERATE BREEZES , AT NOON FRESH BREEZESPM CLOUDY, AT NOON HAZY0000000239227
1798-11-17T00:00-16.58113ST HELENASEBE, SE, ESEPM MODERATE BREEZESPM CLOUDY0000000239228
1798-11-23T12:00-17.03-6.731296.7ST HELENAN40E29S40W37.00-17SE1/2S, SSE, SE1/2S, SEBSPM LIGHT BREEZES, AT 1 LIGHT AIRS INCLINABLE TO CALM, AT NOON MODERATE BREEZESPM HAZY0000000239229
1798-11-24T12:00-17.83-7.031242.6ST HELENAN32E46S20W51.00-17SEBE1/2E, SEBE, SE1/2SPM LIGHT BREEZES, AM LIGHT AIRS, AT NOON LIGHT BREEZESPM CLEAR0000000239230
1798-11-25T12:00-18.70-7.351072.6ST HELENAN29E64S19W55.00-17ESE, SE, VARIABLE, SEBEPM LIGHT BREEZES, AT 12 LIGHT AIRS INCLINABLE TO CALM, AT 4 LIGHT BREEZESPM CLEAR0000000239231
1798-11-26T13:00-19.33-8.231216.7ST HELENAN34E82S53W63.00-14VARIABLE, S, SEPM LIGHT BREEZES, AM MODERATE BREEZESPM CLEAR0000000239232
1798-11-27T13:00-19.98-9.501661.0ST HELENAN4E109S61W82.00-14VARIABLE, SBE, SPM MODERATE BREEZES, AT NOON LIGHT AIRSPM CLEAR0000000239233
1798-11-28T13:00-20.25-8.981896.7CAPE OF GOOD HOPES60E562S63W33.00-14SBW, S, VARIABLE, SBE, SSE, SSWPM LIGHT AIRS INCLINABLE TO CALM, AT NOON MODERATE BREEZESPM CLEAR0000000239234
1798-11-29T13:00-21.42-10.231446.7CAPE OF GOOD HOPES63E569S45W99.00-14SBE, SSE, VARIABLE, SEBS, SSEPM LIGHT BREEZES, 12 FRESH BREEZES, AM MODERATE BREEZES, AT NOON MODERATE BREEZESAT 12 HEAVY SWELL FROM THE SWPM CLEAR, AT 12 CLOUDY, AT NOON CLEAR0000000239235
1798-11-30T13:00-22.90-10.43100CAPE OF GOOD HOPES66E556S71W90.00-13EBS, E, EBS, ESE, E, ESEPM MODERATE BREEZESPM A HEAVY SWELL FROM THE SSW, AM A SWELL FROM THE SOUTHPM CLEAR0000000239236
1798-12-01T13:00-23.58-10.25661.0CAPE OF GOOD HOPES67E546S14E42.00-13E, ENE, NE, ENE, VARIABLE, EBNPM LIGHT AIRS, AT NOON LIGHT AIRSPM CLEAR0000000239237
1798-12-02T13:00-24.22-9.72431.0CAPE OF GOOD HOPES67E531S37E48.00-13EBN, VARIABLE, NEBEPM LIGHT AIRS, AT 8 LIGHT BREEZES, AM LIGHT AIRSPM CLEAR, AT 8 CLOUDY0000000239238
1798-12-03T13:00-25.33-9.48771.0CAPE OF GOOD HOPES69E517S11E68.00-13EBN, VARIABLE, E, EBS, EPM LIGHT BREEZES, AM MODERATE BREEZES, AT 8 LIGHT BREEZES, AT NOON LIGHT AIRSPM CLEAR0000000239239
1798-12-04T13:00-26.87-9.15941.0CAPE OF GOOD HOPES72E499S11E94.00-13E, ENE, EBN, VARIABLE, EBS1/2SPM LIGHT BREEZES, AM MODERATE BREEZES, AT 8 LIGHT BREEZES, AT NOON LIGHT AIRSPM CLOUDY0000000239240
1798-12-05T13:00-28.00-9.08336.7CAPE OF GOOD HOPES75E488S3E68.00-12VARIABLE, NEPM MODERATE BREEZES, LIGHT AIRS, AM LIGHT BREEZES, AT 5 MODERATE BREEZESPM CLEAR0000000239241
1798-12-06T13:00-28.70-8.42561.0CAPE OF GOOD HOPES76E472S40E55.00-12NEBE, VARIABLE, ENEPM LIGHT BREEZES, AT 10 LIGHT AIRS INCLINABLE TO CALM, AM LIGHT AIRSPM CLEAR, AM CLOUDY0000000239242
1798-12-07T13:00-29.60-7.58362CAPE OF GOOD HOPES78E459S39E70.00-12NE, VARIABLEPM LIGHT BREEZESSWELL FROM THE WESTPM CLEAR0000000239243
1798-12-08T12:00-30.67-6.27302.6CAPE OF GOOD HOPES80E425S47E94.00-15NEBE, VARIABLE, ENE, NEPM MODERATE BREEZES, AT 5 MODERATE BREEZES, AM LIGHT BREEZESAT 3:30 A HEAVY SWELL FROM THE WEST, AT 8 A SWELL FROM THE WNWAT 5 CLOUDY, AM CLOUDY0000000239244
1798-12-09T12:00-31.55-4.90412.6CAPE OF GOOD HOPES82E397S53E88.00-15VARIABLE, NE, VARIABLE, NEBEPM LIGHT BREEZES, AT 8 LIGHT BREEZESPM CLEAR, AT 8 CLOUDY0000000239245
1798-12-10T12:00-32.30-4.78411.0CAPE OF GOOD HOPES84E384S35E55.00-15NNE, E, EBS, VARIABLE, NEBEPM LIGHT BREEZES, AT 12 CALM, AT 8 MODERATE BREEZES, AT NOON LIGHT AIRSPM CLOUDY, AT 12 CLEAR, AT NOON CLOUDY0000000239246
1798-12-11T12:00-32.90-3.13872.6CAPE OF GOOD HOPES85E361S59E70.00-14VARIABLE, NEBE, NNW, VARIABLE, EBSPM LIGHT BREEZES, AM MODERATE BREEZES, AT NOON LIGHT BREEZESPM CLOUDY, AT 12 CLEAR0000000239247
1798-12-12T12:00-33.63-1.252982.6CAPE OF GOOD HOPES87E328S70E100.00-17WBN, NBW, NWBN, NWBW, N, NNW, NWPM LIGHT BREEZES, A 1:30 MODERATE BREEZES, AM LIGHT BREEZESPM CLOUDY,0000000239248
1798-12-13T12:00-33.82-1.922989.3CAPE OF GOOD HOPES88E276S82E151.00-17N, NBW, NWPM MODERATE BREEZES, AT 10 FRESH BREEZESPM CLEAR0000000239249
1798-12-14T12:00-34.03-1.753436.7CAPE OF GOOD HOPES88E229S85E150.00-17NBE, NWBW, VARIABLE, NNW, NPM FRESH BREEZES, AT 11 SQUALLY, AT NOON MODERATE BREEZESAT 11 RAINPM CLOUDY, HAZY, AT NOON CLEAR0100000239250
1798-12-15T13:00-34.40-7.833049.3CAPE OF GOOD HOPEN89:49E177S82E155.00-11N, NNE, NWPM MODERATE BREEZES, AM FRESH BREEZESPM CLEAR, AM CLOUDY, AT NOON HAZY0000000239251
1798-12-16T13:00-34.47-11.651586.7CAPE OF GOOD HOPEN89E117S89E190.00-11N1/2W, N, VARIABLE, WBN, VARIABLE, SBEPM FRESH BREEZES AND SQUALLY, AT 6 STRONG BREEZES AND SQUALLY, AT NOON MODERATE BREEZESAT 2 RAINAT NOON CLEAR0100000239252
1798-12-17T13:00-34.67-12.202142.6GREEN POINTN81:24E105S81E117.00-11SWBS, SWPM FRESH BREEZES AND SQUALLY, AT 2 MODERATE BREEZES, AM LIGHT BREEZESAM CLOUDY0000000239253
1798-12-18T13:00-34.33-12.103621.0GREEN POINTN84:20E91N61E42.00-11W, WSW, SBW, SEBS, VARIABLEPM LIGHT AIRS, AT 12 LIGHT BREEZES, AM LIGHT AIRSAT 12 A SWELL FROM THE WESTPM CLEAR, AM CLOUDY0000000239254
1798-12-19T13:00-34.33-14.222062.6GREEN POINTN85E70E63.00-8SWBS, VARIABLE, SSW, SWBSPM CALM WIITH LIGHT AIRS FROM THE SOUTH, AM LIGHT BREEZESPM CLEAR, AM CLOUDY0000000239255
1798-12-20T13:00-34.57-16.281956.7CAPE OF GOOD HOPEN69:15E115S82E104.00-8SWBS, SSWPM MODERATE BREEZES, AT 8 MODERATE BREEZES, AT NOON MODERATE BREEZESPM A HEAVY SWELL FROM THE WESTWARD, AT 8 A HEAVY SWELL FROM THE SWPM HAZY, AT 8 CLEAR0000000239256