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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 MEDWAY cruise from St. Augustine to Cuddalore started at 1760-07-24 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750668, 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: 1.106944 * Median Longitude: 60.050833 * South-bound Latitude: -21.480000 * West-bound Longitude: 42.480000 * North-bound Latitude: 8.280000 * East-bound Longitude: 82.000000
Date/Time Start: 1760-07-24T00:00:00 * Date/Time End: 1760-08-30T00:00:00
Event(s):
Medway_17600724_NMM_ADM/L/M130 * Latitude Start: -23.630000 * Longitude: 43.410000 * Date/Time Start: 1760-07-24T00:00:00 * Date/Time End: 1760-08-30T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Medway (4th Rate Frigate), Voyage: St. Augustine Madagascar - Cuddalore, 1st Observer: John Bladen Tinker (Captain), 2nd Observer: John Jackson (1st Officer/Master), Company: Royal Navy, Other ship information: 60G 1191BM
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
15 Current speed descriptionV descr
16 Wind force descriptionWind force descrAll reported wind forces on this day
17 Present weatherwwWeather description
18 Precipitation descriptionPrecip descr
19 ClearnessClearness
20 GustsGusts1 If wind gusts are reported
21 Precipitation/RainRain1 If rain was reported
22 FogFog1 If fog was reported
23 Snow typeSnow1 If snow was reported
24 ThunderThunder1 If thunder and or lightning was reported
25 HailHail1 If hail was reported
26 Sea iceSea ice1 If sea-ice or icebergs were reported
27 CommentComment
28 IdentificationIDCLIWOC 2.1 line number
Size:
708 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 
Cur dir descr
(Direction of the current. Thi...)
15 
V descr
16 
Wind force descr
(All reported wind forces on t...)
17 
ww
(Weather description)
18 
Precip descr
19 
Clearness
20 
Gusts
(1 If wind gusts are reported)
21 
Rain
(1 If rain was reported)
22 
Fog
(1 If fog was reported)
23 
Snow
(1 If snow was reported)
24 
Thunder
(1 If thunder and or lightning...)
25 
Hail
(1 If hail was reported)
26 
Sea ice
(1 If sea-ice or icebergs were...)
27 
Comment
28 
ID
(CLIWOC 2.1 line number)
1760-07-24T00:001131.0EXTREMES OF LANDSSE - NNE4W, WBS, ESELIGHT AIRS0000000164130
1760-07-25T09:00-21.4842.481802.6EXTREMES OF LANDSE - NE5N30W101.00-23SW, SSWLIGHT BREEZES0000000164131
1760-07-26T09:00-18.8242.8718219.0ST AUGUSTINS BAYS17:49E100N4W161.00-21SSWFRESH GALESCLOUDY0000000164132
1760-07-27T09:00-16.5343.4436119.0ST AUGUSTINS BAYS2:24W142N29E157.00-19SSW, CALMFRESH GALESCLEAR0000000164133
1760-07-28T09:00-14.7043.381842.6MOHILLAS1:55E178N110.00-19W, SW, SSWLITTLE WINDVARIABLE0000000164134
1760-07-29T09:00-12.1343.6217419.0MOHILLASBE7N6E155.00-17S, SBWFRESH GALESCLOUDY0000000164135
1760-07-30T09:00-9.5843.7516319.0MOHILLAS1:03W53N4E154.00-17SSE, SFRESH GALESCLOUDY0000000164136
1760-07-31T09:00-6.8243.931536.7MOHILLAS2:25W108N4E166.00-16SSE, SE, SBEMODERATE, AT 3 SQUALLYRAINCLOUDY0100000164137
1760-08-01T09:00-4.5244.05119MOHILLAS2:55W154N4E138.00-16ESE, S, SEMODERATE AM SQUALLYCLOUDY0000000164138
1760-08-02T09:00-2.7345.50175MOHILLAS10:36W193N38E137.00-16S, SBWFRESH BREEZES, AM SQUALLYCLEAR0000000164139
1760-08-03T09:00-1.7346.8517719.0MOHILLAS15:47W218N50E106.00-14SSW, S, SBWFRESH GALESHAZY0000000164140
1760-08-04T09:00-0.6247.881791.0MOHILLAS19:38W247N42E93.00-12S, SBWMODERATE LATER LIGHT AIRSSHOWERS OF RAINLATER CLEAR1100000164141
1760-08-05T09:000.3749.182029.3MOHILLAS23:19W27598.00-12SW, SWBSFRESH BREEZESCLEAR0000000164142
1760-08-06T09:001.0350.702026.7MOHILLAS27:37W300N66E100.00-12SSW, SWBSMODERATEFAIR0000000164143
1760-08-07T08:002.2252.822166.7MOHILLAS31:54W343N59E148.00-9SSW, SWMODERATE, 7 SQUALLYFAIR0000000164144
1760-08-08T08:003.1755.202169.3MOHILLAS36:32W383N70E152.00-9SWFRESH BREEZESCLEAR0000000164145
1760-08-09T08:003.6556.932166.7MOHILLAS41:25W397S73E109.00-9SSW, SWMODERATECLOUDY0000000164146
1760-08-10T08:003.4358.232196.7MOHILLAS42:39W426N59E91.00-6SWMODERATEFAIR0000000164147
1760-08-11T08:004.4759.652426.7MOHILLAS43:30W461N54E106.00-6WSWMODERATECLOUDY0000000164148
1760-08-12T08:005.3561.122429.3MOHILLAS44:32W494N59E103.00-6WSWFRESH BREEZESCLOUDY0000000164149
1760-08-13T08:006.1262.502192.6MOHILLAS45:21W522N59E89.00-6WSW, SWBS, SWLIGHT BREEZESCLOUDY0000000164150
1760-08-14T08:006.5563.342109.3MOHILLAS45:56W540N62E56.00-4WSW, SWBSFRESH BREEZESCLEAR0000000164151
1760-08-15T08:006.9264.212442.6MOHILLAS46:34W557N66E54.00-4WBS, WSWLIGHT BREEZESCLOUDY0000000164152
1760-08-16T08:007.7065.542326.7MOHILLAS47:12W587N59E91.00-4WSW, SWBWMODERATEFAIR0000000164153
1760-08-17T08:007.9867.272109.3MOHILLAS48:56W616N80E98.00-4WSW, SWBSFRESH BREEZESCLEAR0000000164154
1760-08-18T07:007.7868.852466.7MOHILLAS51:02W937S82E86.00-2WSW, SWBS, WSWMODERATEFAIR0000000164155
1760-08-19T07:007.7269.842342.6MOHILLAS52:12W651N86E58.00-2WSW, SWBWLIGHT BREEZESFAIR0000000164156
1760-08-20T07:007.8870.822912.6MOHILLAS52:58W668N80E58.00-2WBS, WNWLIGHT BREEZESFAIR0000000164157
1760-08-21T07:008.0872.072912.6MOHILLAS53:53W690N80E69.00-2NW, WNWLITTLE WIND, PM SQUALLYFAIR0000000164158
1760-08-22T07:007.8373.103031.0MOHILLAS55:11W703N75E58.00-1WNW, NWBWLIGHT AIRSCLOUDY0000000164159
1760-08-23T07:007.9274.712691.0MOHILLAS56:45W735N87E85.00-1WNW, WLIGHT AIRSCLOUDY0000000164160
1760-08-24T07:008.2876.4628019.0MOHILLAS57:26W768N78:45E114.00-1NWBW, WBNFRESH GALESCLOUDY0000000164161
1760-08-25T07:007.9577.7428119.0ANJENGONBE4N61E86.000NNW, W, WNW, WBNFRESH GALESCLOUDY0000000a trivial correction was made in this observation164162
1760-08-26T07:006.8379.202816.7CAPE COMARINEEBS6S50E95.000W, WBNMODERATECLEAR0000000164163
1760-08-27T07:005.8580.6024819.00W, WSWFRESH GALESCLOUDY0000000164164
1760-08-28T07:007.0382.0024819.0POINT DE GAULLE CEYLONS64W42N56E116.000W, WSWFRESH GALESHAZY0000000164165
1760-08-29T07:007.4082.002486.7FRYERS HOODWBN310S, SSW, WSWWNW1/2 KNOTMODERATELIGHTNING IN THE NW QTRCLEAR0000100164166
1760-08-30T00:008.82236TRINCOMILLEESWBW5SE, SWBW0000000164167