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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 LANCASTER cruise from Simons Bay to Mauritius started at 1800-07-17 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750336, 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: -30.310400 * Median Longitude: 47.337600 * South-bound Latitude: -37.620000 * West-bound Longitude: 20.420000 * North-bound Latitude: -20.170000 * East-bound Longitude: 61.830000
Date/Time Start: 1800-07-17T11:00:00 * Date/Time End: 1800-08-10T08:00:00
Event(s):
Lancaster_18000717_NMM_ADM/L/L17 * Latitude Start: -33.380000 * Longitude Start: 17.270000 * Latitude End: -20.100000 * Longitude End: 57.410000 * Date/Time Start: 1800-07-17T00:00:00 * Date/Time End: 1800-08-10T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Lancaster (3rd Rate Frigate), Voyage: Simons Bay - Mauritius, 1st Observer: Thomas Larcom (Captain), Company: Royal Navy, Other ship information: 64G 1430BM
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 Precipitation descriptionPrecip descr
15 State of the sea descriptionState sea 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 IdentificationIDCLIWOC 2.1 line number
Size:
472 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 
Precip descr
15 
State sea 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 
ID
(CLIWOC 2.1 line number)
1800-07-17T11:00-35.8220.4231212.3CAPE AGUILLASN7:13W22S35:10E118.00-26WBN, NNWSTRONG BREEZESCLOUDY0000000144361
1800-07-18T10:00-36.7722.6322019.0ISLE OF FRANCEN61:27E671S66E134.00-28WSWFRESH GALESHEAVY SEACLOUDY0000000144362
1800-07-19T10:00-37.6225.9029822.6ISLE OF FRANCEN59:23E629S71:13E146.00-28ENE, NEBN, NWBNFRESH BREEZES, STRONG GALES WITH HEAVY SQUALLSFAIR0000000144363
1800-07-20T10:00-36.6029.4724122.6ISLE OF FRANCEN56:40E572N81:31E177.00-29WNW, WSTRONG GALES AND SQUALLYRAIN0100000144364
1800-07-21T10:00-36.2332.5834222.6ISLE OF FRANCEN53:40E526N74E156.00-29WNW, N, NBESTRONG GALES AND SQUALLYRAIN0100000144365
1800-07-22T10:00-35.7036.05362ISLE OF FRANCEN50:43E484N80E174.00-29VARIABLEFRESH BREEZES, LATTER SQUALLYLATTER RAINFAIR0100000144366
1800-07-23T09:00-34.6039.281749.3ISLE OF FRANCEN48:15E429N70:32E175.00-29SSWFRESH BREEZES AND SQUALLYHEAVY ROLLING SEAFAIR0000000144367
1800-07-24T09:00-33.9041.802976.7ISLE OF FRANCEN46:10E372N72E132.00-29SSW, NWBNMODERATECLOUDY0000000144368
1800-07-25T09:00-32.7244.752319.3ISLE OF FRANCEN42E334N64:42E166.00-28NNW, WBSFRESH BREEZESFAIR0000000144369
1800-07-26T09:00-32.2046.40206.7ISLE OF FRANCEN39E303N68:5E91.00-25SSW, NEMODERATEHAZY0000000144370
1800-07-27T09:00-31.6747.783626.7ISLE OF FRANCEN40:48E271N65:20E80.00-24VARIABLEMODERATEHAZY0000000144371
1800-07-28T09:00-31.2749.543146.7ISLE OF FRANCEN35E251N70:51E76.00-24NW, NNWMODERATEHAZY0000000144372
1800-07-29T09:00-30.6751.182692.6ISLE OF FRANCEN31:09E231N59:41E76.00-24WNWLIGHT WINDSCLEAR0000000144373
1800-07-30T08:00-30.0552.611592.6ISLE OF FRANCEN29E210N56E63.00-21WSW, SSE, SLIGHT WINDSCLEAR0000000144374
1800-07-31T08:00-29.5853.403622.6ISLE OF FRANCEN28E200N36E35.00-21VARIABLELIGHT WINDSCLEAR0000000144375
1800-08-01T08:00-28.6854.583621.0ISLE OF FRANCEN27:10E182N42E65.00-21VARIABLELIGHT AIRSCLEAR0000000144376
1800-08-02T08:00-27.6055.37806.7ISLE OF FRANCEN27:23E161N19:05E66.00-21SE, EBSMODERATE BREEZESFAIR0000000144377
1800-08-03T08:00-28.4757.53496.7ISLE OF FRANCEN16:14E167S62E108.00-19ENEMODERATECLOUDY0000000144378
1800-08-04T08:00-28.3259.513626.7ISLE OF FRANCEN6:16E156N84E84.00-19VARIABLEMODERATECLOUDY0000000144379
1800-08-05T08:00-27.4360.113621.0ISLE OF FRANCEN11:32E143N11:15E54.00-15VARIABLELIGHT AIRSHAZY0000000144380
1800-08-06T08:00-25.4761.161206.7ISLE OF FRANCEN1:13E103N16:05E124.00-15SEMODERATEFAIR0000000144381
1800-08-07T08:00-23.5761.83646.7ISLE OF FRANCEN4W66N7:11E115.00-15EBNMODERATEFAIR0000000144382
1800-08-08T08:00-22.0261.71789.3ISLE OF FRANCEN7:39E34N19W98.00-12EFRESH BREEZESCLOUDY0000000144383
1800-08-09T08:00-20.6359.85566.7CAPE BRABANTE32N-12ENEMODERATEFAIR0000000144384
1800-08-10T08:00-20.1758.003489.3CAPE BRABANTSBW6-12NFRESH BREEZESCLOUDY0000000144385