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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 TWEED cruise from New York to Boston started at 1770-11-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752556, 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: 40.385263 * Median Longitude: -67.654211 * South-bound Latitude: 37.250000 * West-bound Longitude: -72.120000 * North-bound Latitude: 42.880000 * East-bound Longitude: -63.530000
Date/Time Start: 1770-11-13T17:00:00 * Date/Time End: 1770-12-01T17:00:00
Event(s):
Tweed_17701113_NMM_ADM/L/T269 * Latitude Start: 40.670000 * Longitude Start: -74.040000 * Latitude End: 41.980000 * Longitude End: -67.060000 * Date/Time Start: 1770-11-13T00:00:00 * Date/Time End: 1770-12-01T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tweed (5th Rate Frigate), Voyage: New York - Boston, 1st Observer: George Collier (Captain), 2nd Observer: Walter Collheapt (1st Officer/Master), Company: Royal Navy, Other ship information: 32G 660BM
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 ClearnessClearness
16 GustsGusts1 If wind gusts are reported
17 Precipitation/RainRain1 If rain was reported
18 FogFog1 If fog was reported
19 Snow typeSnow1 If snow was reported
20 ThunderThunder1 If thunder and or lightning was reported
21 HailHail1 If hail was reported
22 Sea iceSea ice1 If sea-ice or icebergs were reported
23 CommentComment
24 IdentificationIDCLIWOC 2.1 line number
Size:
357 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 
Clearness
16 
Gusts
(1 If wind gusts are reported)
17 
Rain
(1 If rain was reported)
18 
Fog
(1 If fog was reported)
19 
Snow
(1 If snow was reported)
20 
Thunder
(1 If thunder and or lightning...)
21 
Hail
(1 If hail was reported)
22 
Sea ice
(1 If sea-ice or icebergs were...)
23 
Comment
24 
ID
(CLIWOC 2.1 line number)
1770-11-13T17:0039.37-72.123099.3SANDY HOOKN56W39S56E118.00-6SW, NW, NWFRESH BREEZESCLOUDY WEATHER0000000260452
1770-11-14T17:0037.80-68.93849.3SANDY HOOKN57:09W98S58E180.00-6E, EFRESH BREEZESTHICK HAZY WEATHER0000000260453
1770-11-15T17:0038.70-68.778419.0NANTUCKET SHOWELSN13:40E23N8:00E55.00-6E, EFRESH GALESCLOUDY WEATHER0000000260454
1770-11-16T17:0038.62-68.128426.8NANTUCKET SHOWELSN9:34W25S80E30.00-6E, EHARD GALES AND SQUALLY, AT 3 HARD GALESRAIN, AT 11 HEAVY RAIN0100000260455
1770-11-17T17:0038.30-67.558422.6NANTUCKET SHOWELSN21:58W33S53E32.00-6E, EHARD GALES, AT 6 STRONG GALES AND SQUALLY WEATHER, AT 4 STRONG GALES AND EXCESSIVE HEAVY SQUALLSRAIN0100000260456
1770-11-18T16:0037.25-66.228622.6NANTUCKET SHOWELSN33:09W62S74E67.00-4E, EHARD GALES AND SQUALLY WEATHER, AT 11 STRONG GALES AND VERY HARD SQUALLS, AT 11 STRONG GALESRAIN0100000260457
1770-11-19T16:0037.42-65.2535622.6NANTUCKET SHOWELSN45:18W69N76E48.00-4N, NSTRONG GALES WITH EXCESSIVE VERY HARD SQUALLS0000000260458
1770-11-20T16:0038.72-64.383526.7NANTUCKET SHOWELSN70:0W66N26E93.00-8N, NMODERATE BREEZES, PM LIGHT BREEZESCLOUDY WEATHER, PM CLEAR WEATHER0000000260459
1770-11-21T16:0039.22-63.853526.7NANTUCKET SHOWELSN79:47W69N37E42.00-8N, NMODERATEHAZY WEATHER0000000260460
1770-11-22T16:0040.60-63.532621.0NANTUCKET SHOWELSN78:21W71N10E63.00-8W, WLIGHT AIRSFINE WEATHER0000000260461
1770-11-23T16:0041.78-65.102179.3CAPE ANNN74W71N45W114.00-8SW, SWLIGHT AIRS, AT 6 FRESH BREEZESFAIR WEATHER, AT 6 HAZY WEATHER0000000260462
1770-11-24T17:0042.15-68.2517419.0CAPE ANNN60:57W25N81W160.00-6S, SFRESH GALESCLOUDY WEATHER0000000260463
1770-11-25T17:0042.58-69.423629.3CAPE ANNN53W6N63W58.00-11VARIABLE, VARIABLEFRESH BREEZESTHICK AND HAZY WEATHER0000000260464
1770-11-26T17:0042.48-69.2529819.0CAPE ANNN32:31W9S52E10.00-6SW, NWBW, NWBWFRESH GALES AND SQUALLY WEATHER0000000260465
1770-11-27T17:0042.20-69.0526426.8CAPE ANNAT SEAS22E19.00-6W, WHARD GALES AND SQUALLY0000000260466
1770-11-28T17:0042.88-69.252599.3CAPE ANNAT SEAN52W61.00-11W, WFRESH BREEZESCLOUDY WEATHER0000000260467
1770-11-29T16:0042.53-67.3032526.8CAPE ANNAT SEAS56W39.00-13EBN, NNW, NNWHARD GALESSLEET0101000a trivial correction was made in this observation260468
1770-11-30T17:0042.20-68.6915219.0CAPE ANNAT SEAS72W66.00-6NBW, SSE, SSEFRESH GALESCLEAR WEATHER0000000a trivial correction was made in this observation260469
1770-12-01T17:0042.52-70.402829.3SCHOONERSN66:24W14N77W83.00-11S, SW, WNW, WNWFRESH BREEZESCLOUDY WEATHER0000000a trivial correction was made in this observation260470