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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 MONMOUTH cruise from Ascension to Spithead started at 1784-05-13 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750822, 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: 23.156333 * Median Longitude: -24.385333 * South-bound Latitude: -6.170000 * West-bound Longitude: -33.050000 * North-bound Latitude: 49.530000 * East-bound Longitude: -4.300000
Date/Time Start: 1784-05-13T13:00:00 * Date/Time End: 1784-06-11T12:00:00
Event(s):
Monmouth_17840513_NMM_ADM/L/M158 * Latitude Start: -7.754000 * Longitude Start: -14.423000 * Latitude End: 50.680000 * Longitude End: -0.960000 * Date/Time Start: 1784-05-13T00:00:00 * Date/Time End: 1784-06-11T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Monmouth (3rd Rate Frigate), Voyage: Ascension - Spithead, 1st Observer: J. Alms (Captain), 2nd Observer: Andrew Sproule (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 64G 1369BM
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
--1 If position is considered to be coastal (in port or near coastal disturbances)
10 CourseCourseCourse of the ship during the past 24 hours
11 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
12 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.
13 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.
14 Wind force descriptionWind force descrAll reported wind forces on this day
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:
580 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)

-
(1 If position is considered t...)
10 
Course
(Course of the ship during the...)
11 
Distance [arbitrary units]
(Distance travelled during the...)
12 
Decl [deg]
(It is generally accepted by t...)
13 
Wind dir descr
(All reported wind directions ...)
14 
Wind force descr
(All reported wind forces on t...)
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)
1784-05-13T13:00-6.17-15.621026.7ASCENSIONS36E39N36W128.00-11SE, ESEMODERATECLOUDY0000000170193
1784-05-14T13:00-3.90-17.121026.7ASCENSIONS34E98N33W164.00-11ESEMODERATECLOUDY0000000170194
1784-05-15T13:00-1.87-18.601036.7ASCENSIONS34E149N33W148.00-10ESEMODERATECLOUDY0000000170195
1784-05-16T13:000.20-19.871256.7ST JAGON13W392N32W146.00-10SEMODERATECLOUDY0000000170196
1784-05-17T13:002.90-20.62916.7ST JAGON12W260N22W120.00-10ESE, EBSMODERATECLOUDY0000000170197
1784-05-18T13:004.07-21.2969ST JAGON10W226N21W109.00-10SE, EBNMODERATE, AM SQUALLYAM RAINCLEAR0100000170198
1784-05-19T13:005.87-22.253629.3ST JAGON6W188N28W120.00-10EBN, NEBN, NNE, VARIABLEFRESH BREEZES WITH SQUALLSRAIN0100000170199
1784-05-20T14:007.08-24.02376.7ST JAGON6W160N54W130.00-8NNE, VARIABLE, NEMODERATECLOUDY0000000170200
1784-05-21T14:008.70-25.753626.7ST JAGON20E140N46W140.00-9NEBN, VARIABLEMODERATEMIDDLE SMALL RAINSMOOTH WATERCLOUDY0100000170201
1784-05-22T14:0010.53-27.103626.7ST JAGON41E124N34W135.00-9NE, VARIABLEMODERATEHAZY0000000170202
1784-05-23T14:0012.10-28.27386.7ST JAGON57E106N34W122.00-7NEBE, NEBN, NEMODERATECLOUDY0000000170203
1784-05-24T14:0014.17-29.34486.7ST JAGON81E127N30W132.00-8NEBN, NEBEMODERATESMOOTH WATERCLOUDY0000000170204
1784-05-25T14:0016.40-30.82489.3CORVON2W472N29W156.00-8N, NEBEFRESH BREEZESCLOUDY0000000170205
1784-05-26T14:0018.85-31.49476.7CORVON416N14W154.00-9NE, NEBEMODERATECLOUDY0000000170206
1784-05-27T14:0021.73-31.64709.3CORVON360N3W173.00-9EBN, ENE, EBNFRESH BREEZESCLOUDY0000000170207
1784-05-28T14:0023.90-31.80689.3CORVON315N4W148.00-11EBN, VARIABLE, ENEFRESH BREEZES AND SQUALLYSQUALLS OF RAIN1100000170208
1784-05-29T14:0025.83-32.323626.7CORVON2W277N16W122.00-11NEBE, EBN, VARIABLEFIRST PART SQUALLY, MIDDLE AND LATTER MODERATEMIDDLE AND LATTER CLOUDY0000000170209
1784-05-30T14:0028.77-33.05686.7CORVON3W218N3W164.00-11E, VARIABLE, EBNMODERATESMOOTH WATERFIRST PART CLOUDY, LATTER CLEAR0000000170210
1784-05-31T14:0030.90-32.571026.7CORVON176N3E122.00-11EBN, EBS, ESEMODERATESMOOTH WATERCLEAR0000000170211
1784-06-01T14:0032.93-32.323622.6CORVON1E135N8E120.00-15ESE, SSW, VARIABLELIGHT BREEZES AND SQUALLYCLOUDY0000000170212
1784-06-02T14:0035.10-32.023626.7CORVON92N8E134.00-15SW, S, VARIABLEMODERATECLOUDY0000000170213
1784-06-03T14:0037.55-31.553626.7CORVON3W42N6E152.00-18SBW, SW, VARIABLEMODERATE WITH FREQUENT SQUALLSRAINCLOUDY0100000170214
1784-06-04T14:0039.88-30.3030819.0LIZARDN58E390N34E166.00-18NWBW, NW, NWBNFRESH GALESRAIN AT TIMESCLOUDY0100000170215
1784-06-05T14:0042.33-27.3022919.0LIZARDN60E308N42E200.00-19NWBN, NWBW, WSW, NW, WSWFRESH GALESRAINCLOUDY0100000170216
1784-06-06T14:0044.80-23.572279.3LIZARDN66E260N48E213.00-21NW, WSWFRESH BREEZES AND SQUALLYRAIN0100000170217
1784-06-07T13:0046.43-20.071369.3LIZARDN69E190N57E180.00-22WSW, SSW, SSEFRESH BREEZES AND SQUALLYRAIN0100000170218
1784-06-08T13:0047.68-16.222469.3LIZARDN70E123N66E185.00-24S, VARIABLE, WBS, WFRESH BREEZES AND SQUALLYRAIN0100000170219
1784-06-09T13:0048.93-12.522466.7LIZARDN74E72N65E154.00-24WBS, VARIABLE, WMODERATERAIN AT TIMESHAZY0100000170220
1784-06-10T13:0049.47-7.852699.3LIZARDN38E12N80E190.00-24WSW, NNW, NW, WNWFRESH BREEZESRAINHAZY0100000170221
1784-06-11T12:0049.53-4.302476.7LIZARDN76W301E164.00-23NNW, WFIRST PART FRESH BREEZES, MIDDLE AND LATTER MODERATE0000000170222