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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 TWEED cruise from Cork to Funchal started at 1824-05-25 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752558, 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: 43.128889 * Median Longitude: -12.361111 * South-bound Latitude: 34.280000 * West-bound Longitude: -15.900000 * North-bound Latitude: 50.900000 * East-bound Longitude: -8.550000
Date/Time Start: 1824-05-25T00:00:00 * Date/Time End: 1824-06-05T00:00:00
Event(s):
Tweed_18240525_NMM_HTN/1/A * Latitude Start: 50.630000 * Longitude Start: -10.420000 * Latitude End: 32.270000 * Longitude End: -16.930000 * Date/Time Start: 1824-05-25T00:00:00 * Date/Time End: 1824-06-05T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Tweed (6th Rate Frigate), Voyage: Cork - Funchal, 1st Observer: Frederick Hunn (Captain), 2nd Observer: Henry Keppel (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 28G 499BM
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 Present weatherwwWeather description
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:
217 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 
ww
(Weather description)
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)
1824-05-25T00:000000000260479
1824-05-26T13:0050.90-8.551082.6NW END OF MADEIRAS19W385S18W53.00-27N, NBE, SEBE, SEAM MODERATE BREEZE AT 8 LIGHT BREEZE NOON LIGHT BREEZE MIDNIGHT MODERATE BREEZEFOGGY AT MIDNIGHTFINE0010000260480
1824-05-27T13:0048.98-8.901196.7NW END OF MADEIRAS20.50W348S8W116.00-27SE, SEBE, SEBS, SEAM LIGHT BREEZES 4AM MODERATE BREEZE NOON MODERATE BREEZEAM HAZY PM FINE MIDNIGHT HAZY0000000260481
1824-05-28T13:0046.15-10.331339.3NW END OF MADEIRAS21W288S21W189.00-25SBW, SSE, SSW, SWFRESH BREEZE MIDNIGHT MODERADE BREEZERAINY AT MIDNIGHTRAIN AT 8PMCLOUDY0110000260482
1824-05-29T13:0045.58-12.451896.7MADEIRAS16W269S71W96.00-25SW, SWBW, SWBS, VARIABLE, WNW,MODERATE BREEZEAM RAIN8AM FINE 4PM CLOUDY0110000260483
1824-05-30T13:0044.03-13.302892.6MADEIRAS15W203S23W95.00-26WNW, NW, NAM MODERATE BREEZES NOON LIGHT BREEZE PM MODERATE BREEZESFINE 4AM CLOUDY NOON CLOUDY PM FINE0000000260484
1824-05-31T13:0041.92-13.203376.7NW END OF MADEIRAS19W194S14W126.00-23NE, NMODERATE BREEZESFINE0000000260485
1824-06-01T13:0039.65-13.85226.7NW END OF MADEIRAS19W146S17W130.00-23N, NEMODERATE BREEZES MIDNIGHT FRESH BREEZESFINE0000000260486
1824-06-02T13:0036.67-14.77469.3N END OF MADEIRAS24W85S20W182.00-22ENEAM FRESH BREEZES PM MODERATE BREEZESFINE0000000260487
1824-06-03T13:0034.28-15.90466.7N END OF MADEIRAS28W34S29W149.00-22ENE, NNEAM MODERATE BREEZES PM LIGHT BREEZESMIDNIGHT CLOUDYFINE0000000260488
1824-06-04T00:003152.6PORTO SANTOSEBE1/2ENNE, VARIABLE, NW, N, NWBN, VARIABLELIGHT BREEZESFINE0000000260489
1824-06-05T00:002816.7LOO FORTN11WNW, ESE, WBN, VARIABLE, WAM LIGHT AND VARIABLE BREEZES NOON MODERATE BREEZES PM LIGHT BREEZES MIDNIGHT MODERATE BREEZESMIDNIGHT CLOUDYFINE0000000260490