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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 GRAMPUS cruise from Spithead to New York started at 1777-10-03 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.749478, 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: 33.999200 * Median Longitude: -33.336400 * South-bound Latitude: 25.550000 * West-bound Longitude: -46.120000 * North-bound Latitude: 40.430000 * East-bound Longitude: -21.270000
Date/Time Start: 1777-10-03T14:00:00 * Date/Time End: 1779-02-05T14:00:00
Event(s):
Grampus_NMM_ADM/L/G11 * Latitude Start: 50.680000 * Longitude Start: -0.960000 * Latitude End: 40.670000 * Longitude End: -74.040000 * Date/Time Start: 1777-10-03T00:00:00 * Date/Time End: 1779-02-05T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Grampus, Voyage: Spithead - New York, 1st Observer: Ambrose Reddall (Captain), Company: Royal Navy, Other ship information: 30G 1414BM
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 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:
478 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 
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)
1777-10-03T14:0040.43-36.872770.0COLVOS83:4E88N43E17.00-16NE, WSW, NNW, SW, NNW, WNWFIRST PART MODERATE BREEZES AND SQUALLY, MIDDLE MODERATE, LATTER CALMFIRST PART RAINMIDDLE FAIR0100000104510
1777-10-04T14:0039.77-37.053331.0NEW YORKN87:33W561S17W30.00-16WNW, NW, WNW, NBWLIGHT AIRSFIRST AND MIDDLE PARTS CLOUDY, LATTER FAIR0000000104511
1777-10-05T15:0038.95-37.682896.7NEW YORKN85:52W544S31W57.00-15NW, NNW, NWBN, NWBWFIRST AND MIDDLE PARTS MODERATE BREEZES, LATTER MODERATEFIRST AND MIDDLE PARTS CLOUDY, LATTER FAIR0000000104512
1777-10-06T15:0039.20-38.473119.3CORVON82:55E113N86:17W38.00-15WSW, SWBW, NWBNFIRST AND MIDDLE PART LIGHT AIRS, LATTER FRESH BREEZESFIRST AND MIDDLE PARTS LIGHTNINGFIRST AND MIDDLE PARTS CLOUDY, LATTER HAZY0000100104513
1777-10-07T15:0039.67-38.082339.3CORVON66:46E114N33E33.00-15WNW, NNW, NWBN, WSWFIRST PART FRESH BREEZES AND SQUALLY, MIDDLE AND LATTER FRESH BREEZESMIDDLE AND LATTER LIGHTNINGFIRST PART RAIN0100100104514
1777-10-08T15:0038.88-38.603116.7CORVON80:02E117S27W53.00-15NW, WSW, NNW, NWBW, NWBNMODERATE BREEZESCLOUDY0000000104515
1777-10-09T15:0038.53-39.002669.3CORVON77:24E125S29W29.00-15WNW, SW, W, NBW, WBNFIRST AND MIDDLE PARTS LIGHT BREEZES, LATTER FRESH BREEZESRAIN0100000104516
1777-10-10T15:0037.48-40.053499.3CORVON70:54E147S38W80.00-11NBW, NNW, NBW, NFIRST AND MIDDLE PARTS FRESH BREEZES AND SQUALLYHEAVY RAIN0100000104517
1777-10-11T15:0036.95-40.853386.7CORVON69:13E136S50W50.00-11N, NBW, WBN, WNW, NBWMODERATEFIRST AND MIDDLE PARTS CLOUDY, LATTER CLEAR0000000104518
1777-10-12T15:0037.40-41.152142.6NEW YORKN82:04W514N27W31.00-11NNW, WNW, SWLIGHT BREEZESCLOUDY0000000104519
1777-10-13T15:0037.35-42.63352.6NEW YORKN81W488S88W87.00-10ESE, NEFIRST PART MODERATE, MIDDLE AND LATTER LIGHT BREEZESFIRST PART HAZY, MIDDLE AND LATTER CLOUDY0000000104520
1777-10-14T15:0038.12-45.201326.7NEW YORKN82:42W447N66W116.00-14S, SSW, SWBS, SW, SEBSFIRST AND LATTER PARTS MODERATE, MIDDLE FRESH BREEZESCLOUDY0000000104521
1777-10-15T15:0038.67-46.122116.7NEW YORKN83:52W433N53W55.00-14SWBW, WBS, WSW, NWBN, SWMODERATE BREEZESRAIN TOWARDS LATTER PARTCLOUDY0100000104522
1779-01-25T13:0035.00-21.272312.6ST MARIESN44:7W56S21W53.00-17W, NE, WSWLIGHT BREEZESFAIR0000000104523
1779-01-26T13:0033.88-22.0262.6ST MARIESN23:5W65S34W65.00-17NNW, NW, NNELIGHT BREEZESFAIR0000000104524
1779-01-27T14:0032.45-22.982112.6ST MARIESN60W90S31W94.00-14SWBW, SW, SWLIGHT BREEZESFAIR0000000104525
1779-01-28T14:0030.92-23.9592.6ST MARIESN3E121S28W104.00-14ENE, NNELIGHT BREEZESFAIR0000000104526
1779-01-29T14:0029.88-24.60766.7BERMUDASN84:50W672S22W93.00-14EBS, SE, EMODERATE BREEZESCLOUDY0000000104527
1779-01-30T14:0028.72-25.151322.6BERMUDASN83:37W731S34W54.00-14SSE, SE, SEBS, SEBSLIGHT BREEZESFAIR0000000104528
1779-01-31T14:0027.97-25.771326.7BERMUDASN81:53W631S33W61.00-14SEBSMODERATE BREEZESFAIR0000000104529
1779-02-01T14:0026.68-26.621346.7BERMUDASN73:57W656S31W87.00-12SE, SEBSMODERATE BREEZESFAIR0000000104530
1779-02-02T14:0026.00-27.651039.3BERMUDASN78:26W640S56W66.00-10SEBS, SBE, SSE, SBE, ESEFRESH BREEZESCLOUDY0000000104531
1779-02-03T14:0025.93-28.801816.7BERMUDASN86:58W622S86W62.00-10S, SSE, SEBS, SE, SBWMODERATE BREEZESFAIR0000000104532
1779-02-04T14:0025.60-30.501489.3BERMUDASN76:4W594S74W96.00-10SEBS, ESE, SSEMODERATE TRADESFAIR0000000104533
1779-02-05T14:0025.55-32.352609.3BERMUDASN75:51W562S88W101.00-10WBN, W1/2N, WFRESH BREEZES AND SQUALLY0000000104534