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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 LEVIATHAN cruise from Cape Nicholas to Spithead started at 1797-02-20 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750435, 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: 36.498571 * Median Longitude: -41.105238 * South-bound Latitude: 22.600000 * West-bound Longitude: -73.580000 * North-bound Latitude: 49.820000 * East-bound Longitude: -5.070000
Date/Time Start: 1797-02-20T17:00:00 * Date/Time End: 1797-04-02T12:00:00
Event(s):
Leviathan_17970220_NMM_ADM/L/L108 * Latitude Start: 23.730000 * Longitude Start: -75.070000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1797-02-20T00:00:00 * Date/Time End: 1797-04-02T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Leviathan (3rd Rate Frigate), Voyage: Cape Nicholas - Spithead, 1st Observer: James Bower (Captain), Company: Royal Navy, Other ship information: 74G 1703BM
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:
788 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)
1797-02-20T17:0022.60-73.58889.3THE FRENCH KEYSWBN314E1/2NFRESH BREEZECLOUDY0000000149443
1797-02-21T17:0023.92-73.23105THE FRENCH KEYSS18W25N14E81.004EBSRAINY0100000149444
1797-02-22T17:0024.92-72.231152.6BERMUDASN47E224N28E67.002ESEMODERATE, AM LIGHT BREEZESCLEAR AND FAIR0000000149445
1797-02-23T17:0025.23-72.301261.0BERMUDASN47E214N45E30.002NE, SEBELIGHT BREEZES, AM LIGHT AIRS, INCLINABLE TO CALM0000000149446
1797-02-24T17:0026.13-71.681159.3BERMUDASN48E195N35E65.002ESELIGHT BREEZES, AM FRESH BREEZESCLEAR THEN CLOUDY0000000149447
1797-02-25T17:0026.87-70.671821.0BERMUDASN47E170N48E68.002SLIGHT AIRSPLEASANT0000000149448
1797-02-26T17:0027.72-69.321806.7BERMUDASN46E140N57E93.000SMODERATECLEAR0000000149449
1797-02-27T17:0028.18-68.521911.0BERMUDASN44E123N67E51.000SBWFRESH BREEZES, AM LIGHT AIRS INCLINABLE TO CALM0000000149450
1797-02-28T16:0029.10-67.221569.3BERMUDASN44E93N61E87.00-2SSEPM LIGHT BREEZES, AM FRESH BREEZESPM CLOUDY, AM CLEAR0000000149451
1797-03-01T16:0030.27-65.38201BERMUDASN37E54N54E117.00-2SSWPM MODERATE BREEZES, AM SQUALLYRAINCLEAR0100000149452
1797-03-02T16:0030.83-63.671896.7BERMUDASN32N69E94.00-2SBWPM FRESH BREEZES, AM MODERATECLOUDY THEN HAZY0000000149453
1797-03-03T16:0031.15-62.6266BERMUDASN34W27N70E57.00-2S, ENEPM LIGHT BREEZES, AM SQUALLY0000000149454
1797-03-04T16:0032.10-60.48199BERMUDASN89W51N62E123.00-4SSWSQUALLYHAZY0000000149455
1797-03-05T16:0033.02-58.2022919.0ST MARYSN80E533N65E127.00-7SWBWFRESH GALESRAINTHICK HAZY0100000149456
1797-03-06T16:0033.62-55.58250ST MARYSN82E487N74E137.00-9WBSMODERATE BREEZES, AM SQUALLYFINE0000000149457
1797-03-07T15:0034.50-52.4718022.6ST MARYSN85E433N71E164.00-11SBWSTRONG GALESCLOUDY0000000149458
1797-03-08T15:0034.57-49.722706.7ST MARYSN83E393N88E137.00-11WBNFRESH GALE, AM MORE MODERATECLOUDY0000000149459
1797-03-09T15:0034.77-48.903622.6ST MARYSN85E381N70E36.00-11VARIABLELIGHT BREEZESVARIABLE0000000149460
1797-03-10T15:0035.88-47.081459.3ST MARYSN87E344N53E111.00-13SSEFRESH BREEZESCLEAR0000000149461
1797-03-11T15:0036.67-44.931679.3ST MARYSN88E306N66E115.00-13SFRESH BREEZESHAZY0000000149462
1797-03-12T15:0037.58-42.2516219.0CORVON77E180N67E140.00-18SFRESH GALES AND SQUALLYCLEAR0000000149463
1797-03-13T15:0037.82-39.722976.7CORVON74E140N83E121.00-18NBE, NWMODERATECLOUDY0000000149464
1797-03-14T15:0037.50-37.95169.3CORVON68E116S77E86.00-18NEBNFRESH BREEZESCLOUDY THEN PLEASANT0000000149465
1797-03-15T14:0037.75-35.824CORVON60E77N82E103.00-20NNEFRESH BREEZES, AM SQUALLYRAINCLOUDY0100000149466
1797-03-16T14:0038.95-33.102966.7N64E130.00-20NWSQUALLY, AM MORE MODERATE0000000149467
1797-03-17T14:0039.18-30.182389.3FLORYN58W15N79E138.00-21WBSFRESH BREEZESRAINHAZY0100000149468
1797-03-18T14:0039.57-28.6221.0TEREORAS20N74E85.00-21SW, NNEFRESH BREEZES, AM LIGHT AIRS INCLINABLE TO CALMCLOUDY0000000149469
1797-03-19T14:0040.22-25.483176.7CAPE CLEARN46E310N67E102.00-21NNWMODERATECLEAR0000000149470
1797-03-20T14:0040.43-24.253052.6CAPE CLEARNE291N77E58.00-21NWBNMODERATE, AM LIGHT BREEZESCLOUDY THEN CLEAR0000000149471
1797-03-21T14:0040.48-22.753629.3CAPE CLEARN39E277N87E69.00-21VARIABLEPM LIGHT BREEZES, AM FRESH BREEZESCLEAR THEN CLOUDY0000000149472
1797-03-22T13:0040.67-22.053622.6CAPE CLEARN37E267N71E33.00-22VARIABLELIGHT BREEZESCLEAR0000000149473
1797-03-23T13:0041.53-20.872822.6CAPE CLEARN37E242N44E75.00-22NWBWLIGHT WINDSHAZY0000000149474
1797-03-24T13:0042.90-18.82269CAPE CLEARN34E200N48E123.00-24WNWLIGHT WINDS, AM SQUALLYCLEAR0000000149475
1797-03-25T13:0043.15-17.0536219.0CAPE CLEARN32E193N80E87.00-24VARIABLEMODERATE, AM FRESH GALES AND SQUALLYCLOUDY0000000149476
1797-03-26T13:0044.40-15.30325CAPE CLEARN27E157N45E87.00-24NBWLIGHT BREEZES, AM SQUALLYRAINCLOUDY0100000149477
1797-03-27T13:0045.18-13.5529119.0LIZARDN40E147N57E88.00-24NWFRESH GALES AND SQUALLYSHOWERS OF RAINA VERY HEAVY SEA1100000149478
1797-03-28T13:0045.65-11.7232522.6LIZARDN46E123N70E81.00-24NBWSTRONG GALESCLOUDY0000000149479
1797-03-29T13:0046.00-10.233626.7LIZARDN40E103N71E66.00-24VARIABLESTRONG GALES, AM MORE MODERATE0000000149480
1797-03-30T13:0046.28-9.033591.0LIZARDN34E92N74E52.00-24NNEMODERATE BREEZES, AM LIGHT AIRSRAINTHICK THEN CLEAR0100000149481
1797-03-31T13:0047.08-7.553629.3LIZARDN26E64N55E84.00-24VARIABLEFRESH BREEZESCLOUDY0000000149482
1797-04-01T12:0048.75-7.282919.3LIZARDN49E36N7E98.00-24NWFRESH BREEZESCLOUDY0000000149483
1797-04-02T12:0049.82-5.072809.3LIZARDEBN71N49E115.00-24NWBWFRESH BREEZESCLOUDY THEN CLEAR0000000149484