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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 DEPTFORD cruise from Havana to Spithead started at 1764-03-20 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.748474, 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: 40.614444 * Median Longitude: -54.496111 * South-bound Latitude: 33.770000 * West-bound Longitude: -75.800000 * North-bound Latitude: 46.500000 * East-bound Longitude: -30.720000
Date/Time Start: 1764-03-20T17:00:00 * Date/Time End: 1764-04-06T14:00:00
Event(s):
Deptford_17640320_NMM_ADM/L/D76 * Latitude Start: 23.596000 * Longitude Start: -82.434000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1764-03-20T00:00:00 * Date/Time End: 1764-04-06T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Deptford (4th Rate Frigate), Voyage: Havana - Spithead, 1st Observer: Dudley Digger (Captain), 2nd Observer: John Parnell (1st Officer/Master), Company: Royal Navy, Other ship information: 50G 951BM
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 State of the sea descriptionState sea descr
17 ClearnessClearness
18 GustsGusts1 If wind gusts are reported
19 Precipitation/RainRain1 If rain was reported
20 FogFog1 If fog was reported
21 Snow typeSnow1 If snow was reported
22 ThunderThunder1 If thunder and or lightning was reported
23 HailHail1 If hail was reported
24 Sea iceSea ice1 If sea-ice or icebergs were reported
25 IdentificationIDCLIWOC 2.1 line number
Size:
351 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 
State sea descr
17 
Clearness
18 
Gusts
(1 If wind gusts are reported)
19 
Rain
(1 If rain was reported)
20 
Fog
(1 If fog was reported)
21 
Snow
(1 If snow was reported)
22 
Thunder
(1 If thunder and or lightning...)
23 
Hail
(1 If hail was reported)
24 
Sea ice
(1 If sea-ice or icebergs were...)
25 
ID
(CLIWOC 2.1 line number)
1764-03-20T17:0033.77-75.801586.7MATANZESS27:34W238NE80.000SSEMODERATEDRIZZLING RAIN010000050239
1764-03-21T17:0035.85-73.2719126.8MATANZESS31:32W297NE180.000SBWFIRST PART MODERATE, REMAINDER HARD GALES AND SQUALLYREMAINDER RAINFIRST PART CLEAR010000050240
1764-03-22T17:0035.93-71.57666.7MATANZESS35:42W314N88E83.00-2SW, N, ENEFIRST PART HARD GALES AND SQUALLY, REMAINDER MODERATEREMAINDER CLOUDY000000050241
1764-03-23T17:0036.90-70.201339.3MATANZESS37:8W332N49E89.00-2SEFRESH BREEZESCLOUDY WEATHER000000050242
1764-03-24T16:0037.92-66.401509.3MATANZESS41:56W373N71E188.00-8SSEFRESH BREEZESCLOUDY WEATHER000000050243
1764-03-25T16:0038.77-62.60379.3MATANZESS46W449N74E186.00-8SBW, NEFRESH BREEZESCLOUDY WEATHER000000050244
1764-03-26T16:0039.80-61.551379.3MATANZESS45:42W477NE1/2N77.00-9NE, SEBSFRESH BREEZESRAINA GREAT SEA FROM THE NNECLOUDY WEATHER010000050245
1764-03-27T16:0040.13-58.921946.7MATANZESS48:25W509N80E122.00-9SSWMODERATERAINCLOUDY010000050246
1764-03-28T16:0040.83-56.352386.7MATANZESS50:8W549EBN3/4N126.00-10WSWMODERATERAINCLOUDY010000050247
1764-03-29T16:0041.38-54.383286.7MATANZESS51:5W579N70E95.00-10NNWMODERATERAINCLOUDY010000050248
1764-03-30T16:0041.47-52.72916.7MATANZESS52:28W600N85E76.00-10EBSMODERATERAINCLOUDY010000050249
1764-03-31T15:0042.32-50.121476.7MATANZESS53:22W641ENE126.00-11SSEMODERATERAINCLOUDY010000050250
1764-04-01T15:0043.12-45.322999.3MATANZESS55:45W711N77E216.00-16NWFRESH BREEZESRAINCLOUDY010000050251
1764-04-02T15:0042.75-42.6223226.8MATANZESS57:57W737EBS120.00-16WNW, WSWHARD GALES AND THICK SQUALLY WEATHERA GREAT SEA FROM THE NW000000050252
1764-04-03T15:0044.17-38.6224319.0MATANZESS58:28W802NEBE3/4E186.00-16SW, WBSFRESH GALESCLOUDY000000050253
1764-04-04T14:0044.57-35.6529819.0MATANZESS59:31W842EBN131.00-17NWFRESH GALESCLEAR000000050254
1764-04-05T14:0044.88-34.123216.7MATANZESS59:51W864N74E66.00-17NNWMODERATECLEAR WEATHER000000050255
1764-04-06T14:0046.50-30.722316.7MATANZESS59:39W922NE1/4E175.00-17WSWMODERATECLEAR WEATHER000000050256