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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 ALARM cruise from Basse Terre Roads to Spithead started at 1797-05-22 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747272, 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: 34.240000 * Median Longitude: -51.507609 * South-bound Latitude: 18.900000 * West-bound Longitude: -64.700000 * North-bound Latitude: 51.280000 * East-bound Longitude: -8.030000
Date/Time Start: 1797-05-22T16:00:00 * Date/Time End: 1797-07-07T13:00:00
Event(s):
Alarm_17970522_NMM_ADM/L/A62 * Latitude Start: 15.970000 * Longitude Start: -61.770000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1797-05-22T00:00:00 * Date/Time End: 1797-07-07T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Alarm (5th Rate Frigate), Voyage: Basse Terre Roads - Spithead, 1st Observer: Edward Fellowes (Captain), Company: Royal Navy, Other ship information: 32G 679BM
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:
864 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)
1797-05-22T16:0018.90-64.30486.7BERMUDAN12E265N13E38.003NEBN, NEMODERATE BREEZESCLEAR00000005499
1797-05-23T16:0019.87-63.651389.3BERMUDAN257N33E66.003SEFRESH BREEZESCLEAR00000005500
1797-05-24T16:0020.92-63.18482.6BERMUDAN240N28E65.003SE, NELIGHT WINDSFAIR00000005501
1797-05-25T16:0021.93-62.75372.6BERMUDAN3E217N22:30E60.003NEBNLIGHT WINDSCLEAR00000005502
1797-05-26T16:0022.68-62.421122.6BERMUDAN6E203N22E45.00-1NNE, ESELIGHT WINDSCLEAR00000005503
1797-05-27T16:0023.38-62.201342.6BERMUDAN7E188N13E41.00-1VARIABLE, SELIGHT WINDSHAZY00000005504
1797-05-28T16:0022.55-62.283622.6BERMUDAN6:30E180N18W14.00-1VARIABLELIGHT WINDSCLEAR00000005505
1797-05-29T16:0024.10-62.423621.0BERMUDAN6W174N28W37.00-1VARIABLELIGHT AIRS AND VARIABLE00000005506
1797-05-30T16:0024.47-62.333620.0BERMUDAN7W166N4E20.00-1VARIABLECALMCLOUDY00000005507
1797-05-31T16:0024.92-62.581471.0BERMUDAN6W158N27W30.001SEBSLIGHT AIRS AND VARIABLE00000005508
1797-06-01T16:0025.67-62.871591.0BERMUDAN4:30W144N19W44.001NBW, SSELIGHT AIRSCLEAR00000005509
1797-06-02T16:0026.42-63.253626.7BERMUDAN3W127N25W50.001VARIABLEMODERATEFAIR00000005510
1797-06-03T16:0027.05-63.551471.0BERMUDAN114N22:30W39.001SEBSLIGHT AIRSCLEAR00000005511
1797-06-04T16:0027.55-63.783622.6BERMUDAN5E108N22W34.00-2VARIABLELIGHT BREEZESCLEAR00000005512
1797-06-05T16:0027.82-63.933622.6BERMUDAN4:30E100N24W22.00-2VARIABLELIGHT WINDSCLOUDY00000005513
1797-06-06T16:0028.58-64.001561.0BERMUDAN5:30E84N3W46.00-2VARIABLE, SSELIGHT AIRSCLEAR00000005514
1797-06-07T16:0028.58-64.703621.0BERMUDAN2E81N7:01E20.00-2NW, VARIABLELIGHT AIRS AND VARIABLE00000005515
1797-06-08T16:0028.80-62.872461.0BERMUDAN4:20E79N43W18.00-2WSWLIGHT AIRSFAIR00000005516
1797-06-09T16:0029.03-62.833621.0BERMUDAN5E74N9W15.00-2VARIABLELIGHT AIRSCLEAR00000005517
1797-06-10T16:0029.67-62.973621.0BERMUDAN7E62N6W88.00-2VARIABLELIGHT AIRS AND VARIABLE00000005518
1797-06-11T16:0030.40-62.28869.3BERMUDAN5E47N39E56.00-4VARIABLE, EFRESH BREEZESCLOUDY00000005519
1797-06-12T16:0031.10-62.73432.6BERMUDAN21W36N39E42.00-2NELIGHT WIND AND VARIABLE00000005520
1797-06-13T16:0031.68-62.002216.7BERMUDAN49W33N45E54.00-4SWLIGHT WINDS AND VARIABLE, MODERATEFAIR00000005521
1797-06-14T16:0032.67-60.942182.6BERMUDAN86W43N43E77.00-7SWLIGHT WINDSFAIR00000005522
1797-06-15T16:0034.02-59.88184CORA ISLANDSN76E472N39E88.00-7SBWSQUALLYHEAVY RAIN01000005523
1797-06-16T16:0034.55-59.182412.6CORVAN78:30E476N38E44.00-7WSWLIGHT WINDSFAIR00000005524
1797-06-17T16:0035.17-58.532416.7CORVAN79:30E470N41E52.00-7WSWMODERATECLOUDY00000005525
1797-06-18T16:0036.13-57.272396.7CORVAN80E410N48:30E84.00-9WSWMODERATEFAIR00000005526
1797-06-19T16:0036.38-57.082619.3CORVAN80E388N70E61.00-9WFRESH BREEZESCLOUDY00000005527
1797-06-20T16:0037.60-54.902116.7CORVAN83E363N84E84.00-14SWMODERATEHAZY00000005528
1797-06-21T16:0038.77-53.372111.0CORVAN17E352N30E102.00-14SWLIGHT AIRS AND VARIABLE00000005529
1797-06-22T15:0039.60-51.502099.3CORVAS86E352N60E100.00-16SWFRESH BREEZESCLEAR00000005530
1797-06-23T15:0040.57-50.032096.7CORVAS89E291N50E88.00-16SWMODERATECLOUDY00000005531
1797-06-24T15:0041.32-47.371869.3CORVAS83E270N66E108.00-17SSWFRESH BREEZESCLOUDY00000005532
1797-06-25T15:0042.20-45.501529.3CORVAS76:30E212N68E127.00-17SBEFRESH BREEZESCLOUDY00000005533
1797-06-27T15:0043.62-39.231686.7CORVAS57E143N9E125.00-23SBWMODERATECLEAR00000005534
1797-06-28T14:0044.18-35.8715719.0CORVAS36E129N67E160.00-23SFRESH GALESHAZY00000005535
1797-06-29T14:0045.82-33.2320219.0CAPE CLEARS70:30E320N59E135.00-23SWFRESH GALESCLOUDY00000005536
1797-06-30T14:0047.03-30.423142.6CAPE CLEARS72E279N58E138.00-24NNWLIGHT BREEZES AND VARIABLE00000005537
1797-07-01T14:0047.78-27.9228719.0CAPE CLEARN73E232N60E121.00-28NWFRESH GALES AND SQUALLY00000005538
1797-07-02T14:0048.63-24.9529812.3CAPE CLEARN74:30E190N67E127.00-28NWBNFRESH WINDS00000005539
1797-07-03T13:0050.03-22.182439.3CAPE CLEARN84E157N68E128.00-27WFRESH BREEZESCLOUDY00000005540
1797-07-04T13:0050.67-17.9825412.3CAPE CLEARN77E110N77E163.00-27WBNFRESH WINDSCLOUDY00000005541
1797-07-05T13:0051.28-13.402436.7CAPE CLEARS89E54N77E179.00-27WMODERATEHEAVY SEACLOUDY00000005542
1797-07-06T13:0051.07-10.7228922.6CROW HEADNE7-26NWSTRONG GALESRAIN01000005543
1797-07-07T13:0049.88-8.0325522.6ST MARYSE20S48E118.00-26WBNSTRONG GALESRAINHEAVY SEA FROM W01000005544