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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 COVENTRY cruise from Cochin to Gulf of Aden started at 1780-03-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.747961, 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: 10.127727 * Median Longitude: 64.495909 * South-bound Latitude: 8.650000 * West-bound Longitude: 51.150000 * North-bound Latitude: 12.170000 * East-bound Longitude: 75.860000
Date/Time Start: 1780-03-13T07:00:00 * Date/Time End: 1780-04-03T09:00:00
Event(s):
Coventry_17800313_NMM_ADM/L/C214 * Latitude Start: 10.730000 * Longitude Start: 75.790000 * Latitude End: 12.780000 * Longitude End: 48.560000 * Date/Time Start: 1780-03-13T00:00:00 * Date/Time End: 1780-04-03T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Coventry (6th Rate Frigate), Voyage: Cochin - Gulf Of Aden, 1st Observer: Andrew Mitchell (1st Officer/Master), Company: Royal Navy, Other ship information: 28G 586BM
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 ClearnessClearness
15 GustsGusts1 If wind gusts are reported
16 Precipitation/RainRain1 If rain was reported
17 FogFog1 If fog was reported
18 Snow typeSnow1 If snow was reported
19 ThunderThunder1 If thunder and or lightning was reported
20 HailHail1 If hail was reported
21 Sea iceSea ice1 If sea-ice or icebergs were reported
22 IdentificationIDCLIWOC 2.1 line number
Size:
415 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 
Clearness
15 
Gusts
(1 If wind gusts are reported)
16 
Rain
(1 If rain was reported)
17 
Fog
(1 If fog was reported)
18 
Snow
(1 If snow was reported)
19 
Thunder
(1 If thunder and or lightning...)
20 
Hail
(1 If hail was reported)
21 
Sea ice
(1 If sea-ice or icebergs were...)
22 
ID
(CLIWOC 2.1 line number)
1780-03-13T07:009.8375.863261.0COCHINE7N7W7S22.000NNW, NNE, NNW, NWBNLIGHT AIRSFAIR000000045774
1780-03-14T07:009.5874.933381.0COCHINE18S29W14S61.000NW, W, NWBN, NNWLIGHT AIRSFAIR000000045775
1780-03-15T07:008.9373.583602.6COCHINE21N57S64W88.000NWBN, NW, NLIGHT BREEZESFAIR000000045776
1780-03-16T07:008.9072.81232.6MALIQUON50E9S87W45.000NBW, N, NBE, NNELIGHT BREEZESAT NOON FAIR000000045777
1780-03-17T07:009.1372.4892.6COCHINN77E74N55W24.00-2N, NBW, NBELIGHT BREEZESAT NOON FAIR000000045778
1780-03-18T07:008.6571.763582.6COCHINN73:8E90S56W52.00-2NBW, VARIABLE, WNW, NLIGHT BREEZESAT NOON FAIR000000045779
1780-03-19T07:008.8871.183471.0COCHINN77:43E130N68W38.00-2NBE, N, NBWLIGHT BREEZES, AM LIGHT AIRSFAIR WEATHER000000045780
1780-03-20T07:008.9569.3391.0COCHINN81:03E154N87:30W91.00-2N, NBW, NBELIGHT BREEZES, AM LIGHT AIRSFAIR WEATHER000000045781
1780-03-21T07:009.2068.38211.0COCHINN84E170N79W78.00-2NBE, NNELIGHT BREEZES, AM LIGHT AIRSFAIR WEATHER000000045782
1780-03-22T08:009.4067.26202.6COCHINN86:23E202N79W64.00-3NNELIGHT BREEZESHAZY WEATHER000000045783
1780-03-23T08:009.8265.96422.6COCHINN89:9E202N70W91.00-3NNE, NELIGHT BREEZESFAIR WEATHER000000045784
1780-03-24T08:0010.5063.91656.7CAPE GUARDAJOYN83:32W222N72W113.00-3NE, ENEMODERATEFAIR000000045785
1780-03-25T08:0010.2762.28512.6CAPE GUARDAJOYN80:53W187S85:50W84.00-5EBN, NBE, NEBELIGHT BREEZESFAIR WEATHER000000045786
1780-03-26T08:0010.4861.58856.7CAPE GUARDAJOYN82:39W176N79:9W54.00-5NBE, EMODERATE BREEZESFAIR000000045787
1780-03-27T08:0010.7060.55852.6CAPE GUARDAJOYN82:40W165N75:52W53.00-5NNE, SBE, ELIGHT BREEZESFAIR000000045788
1780-03-28T08:0010.8759.51182.6CAPE GUARDAJOYN83:10W149N75:57W41.00-5NE, EBS, NNE,LIGHT BREEZESFAIR000000045789
1780-03-29T08:0010.9758.24852.6CAPE GUARDAJOYN83:14W133N84:40W55.00-5EBS, SEBE, ELIGHT BREEZESFAIR000000045790
1780-03-30T08:0011.2056.75832.6CAPE GUARDAJOYN84:16W110N78:10W68.00-7ESE, ELIGHT BREEZESFAIR000000045791
1780-03-31T08:0011.4555.14942.6CAPE GUARDAJOYN85:58W85N78:23W74.00-7EBSLIGHT BREEZESCLOUDY000000045792
1780-04-01T08:0011.5353.971732.6CAPE GUARDAFOYN86:24W69N81:42W49.00-7SLIGHT BREEZESCLOUDY000000045793
1780-04-02T09:0011.4052.301046.7CAPE GUARDAFOYN80W43S83W76.00-9SBW, ESEMODERATE BREEZES000000045794
1780-04-03T09:0012.1751.151262.6CAPE GUARDAFOYSBE8-9ESE, ENE, SELIGHT BREEZESFAIR000000045795