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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 MERSEY cruise from Pouillac to Monserrat started at 1823-10-01 [dataset]. Public Record Office, Kew, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750785, 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: 5.781429 * Median Longitude: -23.552143 * South-bound Latitude: 0.900000 * West-bound Longitude: -24.970000 * North-bound Latitude: 9.420000 * East-bound Longitude: -21.030000
Date/Time Start: 1823-10-01T14:00:00 * Date/Time End: 1823-10-14T14:00:00
Event(s):
Mersey_PRO_ADM/51/3265 * Latitude Start: 44.750000 * Longitude Start: -4.750000 * Latitude End: 16.580000 * Longitude End: -62.200000 * Date/Time Start: 1823-10-01T00:00:00 * Date/Time End: 1823-10-14T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Mersey (6th Rate Frigate), Voyage: Pouillac - Monserrat, 1st Observer: Edward Collier (Captain), Company: Royal Navy, Other ship information: 28G 444BM
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
Temperature, airTTT°C
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
Distance to landmarkDistancearbitrary unitsDistance to the first landmark
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 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
14 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.
15 Wind force descriptionWind force descrAll reported wind forces on this day
16 Precipitation descriptionPrecip 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:
268 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...)

TTT [°C]

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)

Distance [arbitrary units]
(Distance to the first landmark)
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 
Reading [arbitrary units]
(Reading of the (outside) air ...)
14 
Wind dir descr
(All reported wind directions ...)
15 
Wind force descr
(All reported wind forces on t...)
16 
Precip 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)
1823-10-01T14:009.42-24.8390.0EQUATOR, LONG 23:30WS24W13.00-14VARIABLE, NNE, NE, NNEAM CALM, PM LIGHT BREEZESCLOUDY0000000168523
1823-10-02T14:008.65-24.373461.0EQUATOR, LONG 23:30WS5E520S14E43.00-14NE, NBE, N, NE, WBS, NAM LIGHT AIRS, PM LIGHT WINDSAM CLOUDY, PM FINE0000000168524
1823-10-03T14:007.70-23.933622.6EQUATOR, LONG 23:30WS2:36E460S1E55.00-14EBS, VARIABLE, E, E1/2S, VARIABLEAM LIGHT WINDS, PM MODERATE BREEZESAM CLOUDY, PM FINE0000000168525
1823-10-04T14:006.80-23.803622.6EQUATOR, LONG 23:30WS4W52.00-13ESE, WBS, VARIABLE, WBS, S, VARIABLEAM LIGHT BREEZES, PM MODERATE BREEZESCLOUDY0000000168526
1823-10-05T14:006.50-24.971902.6EQUATOR, LONG 23:30WS9:30E394S69:30W43.00-13VARIABLE, SSW, SBW, VARIABLE, SSWAM LIGHT WINDS, PM FRESH BREEZES AND SQUALLYPM HARD RAINAM CLOUDY0100000168527
1823-10-06T14:006.25-24.153626.7EQUATOR, LONG 23:30WS5E376S73E51.00-13SW, VARIABLE, SBW, S, VARIABLEAM MODERATE, PM MODERATE BREEZESRAINAM CLOUDY0100000168528
1823-10-07T14:006.53-22.671676.7EQUATOR, LONG 23:30WN14E10.00-13VARIABLE, S, VARIABLE, SBW, SAM MODERATE BREEZES, PM MODERATEAM CLOUDY, PM FINE0000000168529
1823-10-08T14:006.23-23.051566.7EQUATOR, LONG 23:30WS5W372S57W58.00-13SBW, SBE, VARIABLE, CALM, SBEMODERATEAM CLOUDY, PM FINE0000000168530
1823-10-09T13:005.85-21.03191.0EQUATOR, LONG 23:30WS6W372S6E19.00-15WNW, NEBN, VARIABLE, SW, NEBNAM LIGHT AIRS, PM MODERATE BREEZES WITH FREQUENT SQUALLS0000000168531
1823-10-10T14:005.08-24.371676.727.2EQUATOR, LONG 23:30WS10W312S17E50.00-1381.00SW, VARIABLE, S, VARIABLE, SW, SAM MODERATE, PM FRESH BREEZESPM RAINAM CLOUDY0100000168532
1823-10-11T13:004.60-21.9717625.0EQUATOR, LONG 23:30WS19W302S37E35.00-1577.00SWBS, VARIABLE, SBW, VARIABLE, S, SBWAM SQUALLY, PM MODERATEAM RAINPM CLOUDY0100000168533
1823-10-12T14:003.93-22.801456.7EQUATOR, LONG 23:30WS8W239S59W98.00-13S, SSE, S, SEBS, SSEMODERATEAM CLOUDY, PM FINE0000000168534
1823-10-13T14:002.50-23.071346.7EQUATOR, LONG 24:10WS11:30W150S23W94.00-12SE, SEBS, SE, VARIABLE, SEBSMODERATE BREEZESAM FINE, PM CLOUDY0000000168535
1823-10-14T14:000.90-24.721406.725.6EQUATOR, LONG 25WS28W38S29W107.00-1278.00SSE, SSE1/2E, SEBS, SE, SSE1/2EMODERATE BREEZESCLOUDY0000000168536