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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 MONARCA cruise from Johanna to Nagapatam started at 1781-09-01 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750813, 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: 3.995667 * Median Longitude: 63.081667 * South-bound Latitude: -11.170000 * West-bound Longitude: 43.120000 * North-bound Latitude: 8.850000 * East-bound Longitude: 84.460000
Date/Time Start: 1781-09-01T09:00:00 * Date/Time End: 1781-09-30T06:00:00
Event(s):
Monarca_17810901_NMM_ADM/L/M16B * Latitude Start: -10.950000 * Longitude Start: 44.330000 * Latitude End: 10.830000 * Longitude End: 80.000000 * Date/Time Start: 1781-09-01T00:00:00 * Date/Time End: 1781-09-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Monarca (3rd Rate Frigate), Voyage: Johanna - Nagapatam, 1st Observer: J. Gell (Captain), 2nd Observer: Richard Jones (1st Officer/Master), Company: Royal Navy, Other ship information: 68G 1934BM
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:
528 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)
1781-09-01T09:00-11.1744.621182.6N1E36.00-17SELIGHT AIRS, THEN LIGHT BREEZESCLEAR0000000170090
1781-09-02T09:00-10.5743.881862.6N39W49.00-17SE, SSWLIGHT AIRS, THEN LIGHT BREEZESCLEAR0000000170091
1781-09-03T09:00-9.2043.121189.3N28W99.00-17S, SEFIRST LIGHT BREEZES, MID SQUALLY, LATTER FRESH BREEZESSHOWERS OF RAINCLEAR1100000170092
1781-09-04T09:00-6.7043.271436.7N5E142.00-15S, SSEFIRST AND LATTER MODERATE BREEZES, MID FRESH BREEZESFIRST CLEAR, MID AND LATTER CLOUDY0000000170093
1781-09-05T09:00-4.9244.151439.3N16E168.00-15SSW, SSEFRESH BREEZES, 1AM FRESH GALES, ENDING FRESH BREEZESHAZY THEN CLEAR0000000170094
1781-09-06T09:00-1.4245.953626.7N40E170.00-13SEBS, VARIABLEFRESH BREEZES, 12PM WITH SQUALLS, ENDING MODERATE BREEZESCLOUDY THEN CLEAR0000000170095
1781-09-07T09:000.0247.831802.6N53E122.00-11SBE, SBWMODERATE BREEZES, MID FRESH BREEZES, LATTER LIGHT BREEZESSMALL RAINFIRST AND LATTER HAZY, MID CLOUDY0100000170096
1781-09-08T09:001.6550.031586.7N55E154.00-11WSW, SBEMODERATE BREEZESCLOUDY AND HAZY0000000170097
1781-09-09T09:002.9552.423626.7JOHANNAS28W343N64E165.00-10S, VARIABLEFIRST FRESH BREEZES, MID AND LATTER MODERATE BREEZESCLOUDY0000000170098
1781-09-10T08:003.7754.532406.7JOHANNAS32:25W378N69E136.00-8SWBW, WSWFIRST AND MID FRESH BREEZES, LATTER MODERATE BREEZESFIRST AND MID CLOUDY AND HAZY, LATTER CLEAR0000000170099
1781-09-11T08:005.1756.252406.7JOHANNAS34:07W422N48E158.00-8WSWMODERATE BREEZESCLOUDY AND HAZY0000000170100
1781-09-12T08:006.6257.802426.7JOHANNAS35:30W461N50E121.00-6WSWMODERATE BREEZESCLOUDY AND HAZY0000000170101
1781-09-13T08:007.1759.803626.7JOHANNAS38:54W492N74E124.00-6WSW, VARIABLEMODERATE BREEZESCLOUDY0000000170102
1781-09-14T08:007.7861.972886.7JOHANNAS41:22W351N74E135.00-5SW, WNWMODERATE BREEZESCLOUDY AND HAZY0000000170103
1781-09-15T08:008.0563.822456.7JOHANNAS43:12W555N82E112.00-3WBN, WSWMODERATE BREEZESCLOUDY AND HAZY0000000170104
1781-09-16T08:008.2865.083126.7KELEYS89E144N79E76.00-3WBS, NWMODERATE BREEZESCLOUDY AND HAZY0000000170105
1781-09-17T08:008.3265.833621.0KELEYS89:24E128N88E45.00-3NW, N, VARIABLEFIRST LIGHT BREEZES, MID LIGHT AIRS INCLINABLE TO CALM, LATTER LIGHT AIRSCLOUDY0000000170106
1781-09-18T08:008.5567.082562.6KELEYS86:49E104N79E75.00-3NW, WBSLIGHT BREEZESCLEAR, THEN CLOUDY AND HAZY0000000170107
1781-09-19T07:008.7368.333622.6KELEYS82:41E82N77E71.00-2NW, VARIABLELIGHT BREEZESCLOUDY AND HAZY0000000170108
1781-09-20T07:008.6369.272681.0KELEYS82:08E60N84E62.00-2NW, WLIGHT BREEZES, THEN LIGHT AIRS INCLINABLE TO CALMCLEAR0000000170109
1781-09-21T07:008.7370.821896.7KELEYS71E31N86E93.00-2W, WSW, SBWFIRST FRESH BREEZES, MID AND LATTER MODERATE BREEZESFIRST AND MID CLOUDY, LATTER CLEAR0000000170110
1781-09-22T07:008.7872.68248N88E112.000SW, WSWFIRST MODERATE BREEZESCLEAR0000000170111
1781-09-23T07:008.8574.103499.3N87E85.000S, WSW, NBWFIRST AND MID LIGHT BREEZES, LATTERFREESH BREEZES AND SQUALLYFIRST CLEAR, MID CLOUDY AND HAZY0000000170112
1781-09-24T07:008.8075.703156.7AGENGAS49:15E12S88E96.000N, NWMODERATE BREEZESCLOUDY AND HAZY0000000170113
1781-09-25T07:007.7077.053159.3S49E106.000NWFRESH BREEZES AND SQUALLY0000000170114
1781-09-26T07:006.2882.112949.3POINT DE GALLS77:46E17S55E145.001WBS, WNWFRESH BREEZES AND SQUALLY0000000170115
1781-09-27T06:006.0084.462719.3CAPE DE GALLN86:10W30N83E141.001SWBW, WFRESH BREEZES AND SQUALLYHAZY0000000170116
1781-09-28T06:007.3383.463161.0N17W85.001WSW, NWFIRST AND MID FRESH BREEZES, LATTER LIGHT AIRSFIRST AND LATTER CLEAR, MID CLOUDY0000000170117
1781-09-29T06:007.7283.832712.6N31W27.001WNW, NWBN, WLIGHT BREEZES, THEN LIGHT WINDSLIGHTNINGCLEAR THEN HAZY0000100170118
1781-09-30T06:007.9783.212941.0N32W32.001S, ESE, WSW, WNWLIGHT BREEZES, THEN LIGHT AIRS INCLINABLE TO CALMCLOUDY THEN CLEAR0000000170119