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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 TRUSTY cruise from Simons Bay to The Downs started at 1798-07-08 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.752536, 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: 14.684578 * Median Longitude: -17.005060 * South-bound Latitude: -34.780000 * West-bound Longitude: -35.430000 * North-bound Latitude: 51.720000 * East-bound Longitude: 17.680000
Date/Time Start: 1798-07-08T11:00:00 * Date/Time End: 1798-10-16T12:00:00
Event(s):
Trusty_17980708_NMM_ADM/L/T264 * Latitude Start: -33.380000 * Longitude Start: 17.270000 * Latitude End: 47.720000 * Longitude End: -5.280000 * Date/Time Start: 1798-07-08T00:00:00 * Date/Time End: 1798-10-16T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Trusty (4th Rate Frigate), Voyage: Simons Bay - Downs, 1st Observer: Andrew Tool (Captain), 2nd Observer: James Lillicrap (2nd Officer/Lieutenant), Company: Royal Navy, Other ship information: 50G 1080BM
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 State of the sea descriptionState sea descr
18 ClearnessClearness
19 GustsGusts1 If wind gusts are reported
20 Precipitation/RainRain1 If rain was reported
21 FogFog1 If fog was reported
22 Snow typeSnow1 If snow was reported
23 ThunderThunder1 If thunder and or lightning was reported
24 HailHail1 If hail was reported
25 Sea iceSea ice1 If sea-ice or icebergs were reported
26 CommentComment
27 IdentificationIDCLIWOC 2.1 line number
Size:
1569 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 
State sea descr
18 
Clearness
19 
Gusts
(1 If wind gusts are reported)
20 
Rain
(1 If rain was reported)
21 
Fog
(1 If fog was reported)
22 
Snow
(1 If snow was reported)
23 
Thunder
(1 If thunder and or lightning...)
24 
Hail
(1 If hail was reported)
25 
Sea ice
(1 If sea-ice or icebergs were...)
26 
Comment
27 
ID
(CLIWOC 2.1 line number)
1798-07-08T11:00-34.0517.683621.0TABLE LANDEBS1/2S12-26SE, VARIABLELIGHT AIRS0000000259471
1798-07-09T11:00-33.6816.13776.7CAPE GOOD HOPES67E39N73W75.00-24E, NNW, EBSLIGHT BREEZES, AM MODERATE BREEZESCLEAR0000000259472
1798-07-10T11:00-34.7815.2329122.6CAPE GOOD HOPEE1S46S44W65.00-24NWFRESH BREEZES, AM STRONG GALES WITH HEAVY SQUALLSCLOUDY0000000259473
1798-07-11T11:00-33.4315.2829119.0CAPE GOOD HOPEE16S66N2E59.00-24WBN, NWFRESH GALES AND SQUALLYHEAVY SWELL FROM NW0000000259474
1798-07-12T11:00-33.2814.653621.0CAPE GOOD HOPES68E68N18E38.00-24VARIABLEFRESH BREEZES, LIGHT AIRSCLOUDY0000000259475
1798-07-13T11:00-31.8715.232909.3CAPE GOOD HOPES47E78N14E89.00-25NWMODERATE, AM FRESH BREEZESCLOUDY0000000259476
1798-07-14T11:00-31.0714.273249.3ST HELENAN52:59W510N41W63.00-25WSW, SW, NBWFRESH BREEZESCLOUDY0000000259477
1798-07-15T11:00-30.4013.482000.6ST HELENAS51W457N46W58.00-25VARIABLE, WBS, SWLIGHT BREEZES, AM LIGHT AIRS INCLINING TO CALMS0000000259478
1798-07-16T11:00-29.6812.482022.6ST HELENAS51W435N50W69.00-23SEBS, SWLIGHT BREEZES0000000259479
1798-07-17T11:00-28.4711.171356.7ST HELENAS51W405N42W97.00-23SSELIGHT BREEZES, AM MODERATEAM CLOUDY0000000259480
1798-07-18T11:00-27.8810.831016.7ST HELENAS52W385N29W42.00-23VARIABLE, SEBELIGHT AIRS AND FREQUENT CALMS, AM MODERATE BREEZES0000000259481
1798-07-19T11:00-26.029.43292ST HELENAS54W345N53W135.00-23SW, S, NWMODERATE BREEZES, AM SQUALLYCLEAR0000000259482
1798-07-20T12:00-23.936.6018222.6ST HELENAS55W282N51W200.00-21SSE, SSWSTRONG GALESCLOUDY0000000259483
1798-07-21T12:00-21.853.801149.3ST HELENAN56:59W218N51W195.00-21SEFRESH BREEZES AND SQUALLY0000000259484
1798-07-22T12:00-19.921.421169.3ST HELENAN58W474N50W176.00-19SEFRESH BREEZESCLOUDY0000000259485
1798-07-23T12:00-18.900.13949.3ST HELENAN60W126N49W96.00-19ESEFRESH BREEZESCLOUDY0000000259486
1798-07-24T12:00-18.22-1.05942.6ST HELENAN64W101N55W79.00-19VARIABLE, ESELIGHT BREEZESCLOUDY0000000259487
1798-07-25T12:00-17.58-1.653622.6ST HELENAN66W84N46W52.00-19WSW, SSW, VARIABLELIGHT BREEZESCLOUDY0000000259488
1798-07-26T12:00-16.22-3.581746.7ST HELENAN8:30W43N52W136.00-17ESE, SBWMODERATECLOUDY0000000259489
1798-08-14T13:00-13.90-8.101432.6ST HELENAS49E63N48W122.00-15SSELIGHT BREEZESCLOUDY0000000259490
1798-08-15T13:00-12.55-9.581432.6ST HELENAS47E100N47W118.00-15SSELIGHT BREEZESCLOUDY0000000259491
1798-08-16T13:00-11.23-11.301432.6ASCENSIONN47:57W89N52W127.00-15SSELIGHT BREEZESCLOUDY0000000259492
1798-08-17T13:00-9.82-13.271456.7ASCENSIONN26W45N48W142.00-13SSEMODERATE BREEZES0000000259493
1798-08-18T13:00-8.22-15.081006.7ASCENSIONN72E22N48W147.00-13ESEMODERATE BREEZES0000000259494
1798-08-19T13:00-6.82-16.98996.7ASCENSIONS67:25E61N55W145.00-14ESEMODERATE BREEZES0000000259495
1798-08-20T13:00-5.35-18.671026.7ASCENSIONS62E101N48W136.00-11ESEMODERATE BREEZES0000000259496
1798-08-21T13:00-3.98-20.45796.7ASCENSIONN57:25E147N51W138.00-11SEBS, EMODERATE BREEZES0000000259497
1798-08-22T13:00-2.22-21.851019.3ST PAULSN57W79N48W135.00-12ESEMODERATE, AM STEADY BREEZESAM PLEASANT WEATHERCLEAR0000000259498
1798-08-23T14:00-0.53-22.801046.7ST PAULSN72:10W89N28W118.00-9ESEMODERATECLEAR0000000259499
1798-08-24T14:001.28-23.37812.6ST PAULSS84:12W72N16W117.00-9ELIGHT BREEZESCLEAR0000000259500
1798-08-25T14:003.62-23.601146.7ST JAGON3E215N7W145.00-10SEBEMODERATE BREEZESCLEAR, AM CLOUDY0000000259501
1798-08-26T14:005.77-23.831486.7ST JAGON2E171N6W133.00-10SSEMODERATE BREEZESCLEAR0000000259502
1798-08-27T14:008.10-23.921696.7ST JAGON3E122N142.00-11SSW, WSW, SLIGHT BREEZES, AM MODERATE BREEZESAM RAIN AT TIMESCLOUDY0100000259503
1798-08-28T14:0011.08-23.782379.3ST JAGON7E65N176.00-11SSW, WSWFRESH BREEZESHAZY0000000259504
1798-08-29T14:0013.53-24.132121.0ST JAGON34E14N5W149.00-13SWBW, SWBS, SWFRESH BREEZES, AM HARD GALESAM HEAVY RAINCLEAR0100000259505
1798-08-30T14:0014.87-24.27190ST MARYSN2:1W433N9W82.00-13SE, SSWSQUALLYHEAVY RAIN0100000259506
1798-08-31T14:0016.28-24.601782.6ST MARYSN414N17W100.00-13SW, SBWLIGHT BREEZESHAZY, AM CLOUDY0000000259507
1798-09-01T14:0016.77-24.932010.6ST MARYSN2:10W405N32W37.00-13NEBN, SWBSLIGHT AIRS INCLINING TO CALM0000000259508
1798-09-02T14:0016.95-26.43216.7ST MARYSN3E423N8W88.00-13NNE, NEBNMODERATE BREEZESCLOUDY0000000259509
1798-09-03T14:0017.97-27.3296.7CORVON78W443N41W81.00-14ENE, NNELIGHT BREEZES, AM MODERATEHAZY, AM CLOUDY0000000259510
1798-09-04T14:0018.42-28.58336.7CORVON82W432N69W77.00-12NBE, NEMODERATE BREEZESCLOUDY0000000259511
1798-09-05T14:0018.47-30.45116.7CORVON2WW2N96.00-12NEBN, N, NNELIGHT BREEZES, AM MODERATECLEAR, AM CLOUDY0000000259512
1798-09-06T14:0019.55-31.38116.7CORVON405N45W93.00-12ENE, NNEMODERATE BREEZESHAZY0000000259513
1798-09-07T14:0021.35-32.82599.3CORVON4:10E369N36W136.00-9ENEFRESH BREEZESCLOUDY0000000259514
1798-09-08T14:0023.05-33.60576.7CORVON7E337N21W100.00-11ENEMODERATE BREEZESCLEAR0000000259515
1798-09-09T14:0024.95-34.23686.7CORVON6E296N14W120.00-11EBS, EBNMODERATE BREEZESHAZY0000000259516
1798-09-10T14:0026.52-34.551026.7CORVON6E267N10W98.00-11EBS, EBN, ENE, ESEMODERATECLEAR, AM CLOUDY0000000259517
1798-09-11T14:0027.60-35.33762.6CORVON16E248N34W80.00-14VARIABLE, ELIGHT BREEZESCLEAR0000000259518
1798-09-12T14:0028.77-35.28651.0CORVON17E225N6W69.00-14SEBE, EBNLIGHT BREEZES, AM LIGHT AIRSCLEAR, AM HAZY0000000259519
1798-09-13T14:0029.30-35.33761.0CORVON17E219N3W34.00-14ELIGHT AIRSCLEAR0000000259520
1798-09-14T14:0029.87-35.33990.6CORVON18E208N36.00-14ESELIGHT AIRS INCLINING TO CALM0000000259521
1798-09-15T14:0030.60-35.332111.0CORVON19E194N48.00-14SSW, SBW, SWLIGHT BREEZES, AM LIGHT AIRSSWELL FROM NWCLEAR, AM CLOUDY0000000259522
1798-09-16T14:0031.08-35.372112.6CORVON23E173N5W27.00-14SBW, SWLIGHT BREEZESCLEAR0000000259523
1798-09-17T14:0032.13-35.432116.7CORVON26E148N1W65.00-14VARIABLE, SWLIGHT BREEZES, AM MODERATECLEAR, AM CLOUDY0000000259524
1798-09-18T14:0033.28-35.132091.0CORVON28E143N11E70.00-16VARIABLE, SE, SWLIGHT AIRSCLEAR0000000259525
1798-09-19T14:0035.08-34.802322.6CORVON30:35E107N12E110.00-16SBE, WSWLIGHT WINDSCLOUDY0000000259526
1798-09-20T14:0036.72-33.951536.7CORVON35E73N20E106.00-16SW, SBEMODERATE WITH HARD SQUALLSTHUNDER AND LIGHTNINGRAINHAZY0100100259527
1798-09-21T14:0038.47-33.051719.3CORVON47E36N25E116.00-20W, SBWMODERATE, AM FRESH BREEZES AND SQUALLYCLOUDY0000000259528
1798-09-22T14:0039.83-30.733399.3CORVON86W24N64E76.00-21VARIABLE, NNW, NFRESH BREEZESCLOUDY0000000259529
1798-09-23T14:0039.83-29.922949.3CORVON85W25N64E73.00-21NBW, VARIABLE, NWFRESH BREEZESCLOUDY0000000259530
1798-09-24T14:0039.93-30.18241.0LANDS ENDN61E397N73W21.00-21VARIABLE, NELIGHT AIRSCLOUDY0000000259531
1798-09-25T14:0041.00-30.30242.6LANDS ENDN64E354N7W63.00-21VARIABLE, NELIGHT BREEZES AND INCLINABLE TO CALMS0000000259532
1798-09-26T14:0043.82-30.47666.7LANDS ENDN68E350N3W106.00-24VARIABLE, EMODERATE BREEZESCLOUDY0000000a trivial correction was made in this observation259533
1798-09-27T14:0044.12-30.27896.7LANDS ENDN71E348N7E76.00-24SEBE, ESEMODERATE BREEZESCLOUDY0000000259534
1798-09-28T14:0044.68-30.121221.0LANDS ENDN71E343N11E33.00-24VARIABLE, SEBSMODERATE, AM LIGHT AIRSHAZY0000000259535
1798-09-29T14:0044.78-30.153361.0LANDS ENDN82E343N81E43.00-24NNW, NLIGHT AIRSCLOUDY0000000259536
1798-09-30T14:0044.65-27.273146.7LANDS ENDN68E324N82E81.00-24EBN, NNWMODERATE BREEZESHAZY0000000259537
1798-10-01T14:0045.75-26.38666.7LANDS ENDN72E288N27E73.00-24ESE, EMODERATE BREEZESCLOUDY0000000259538
1798-10-02T14:0046.75-24.921562.6LANDS ENDN71E252N47E87.00-24WSW, SLIGHT BREEZESCLOUDY0000000259539
1798-10-03T14:0047.30-23.821900.6LANDS ENDN75E248N53E55.00-24SW, SSW, SWBSLIGHT AIRS INCLINING TO CALMCLOUDY0000000259540
1798-10-04T13:0048.30-20.851766.7LANDS ENDN76E194N62E126.00-28NW, NBW, SSWMODERATE BREEZESCLOUDY0000000259541
1798-10-05T13:0048.85-18.253119.3LANDS ENDN81E161N65E77.00-28VARIABLE, NNWFRESH BREEZESCLOUDY0000000259542
1798-10-06T13:0049.67-16.30526.7LANDS ENDN87E221N60E96.00-27NNW, EBNMODERATE BREEZESCLEAR0000000259543
1798-10-07T13:0050.47-18.481649.3LANDS ENDS88E164N55E84.00-28SEBE, SBWFRESH BREEZESCLOUDY0000000a trivial correction was made in this observation259544
1798-10-08T13:0051.35-19.771316.7LANDS ENDS8E174N51E83.00-28SBE, SSW, SSEFRESH BREEZES, AM MORE MODERATERAINHAZY0100000259545
1798-10-09T13:0051.72-19.751646.7LANDS ENDS80E179N6W22.00-28ESE, SBWMODERATETHICK FOGGY WEATHER0010000259546
1798-10-10T13:0051.47-18.78636.7LANDS ENDS80E162S72E43.00-28NE, EMODERATETHICK FOGGY WEATHER0010000259547
1798-10-11T13:0050.80-13.72186.7LANDS ENDS84E121E13S118.00-27N, NEMODERATECLOUDY0000000259548
1798-10-12T13:0050.20-14.8571.0LANDS ENDE101E26S82.00-27SEBE, NEBNFRESH BREEZES, AM LIGHT AIRSCLOUDY0000000259549
1798-10-13T13:0049.22-14.53976.7LANDS ENDN80E104S7E65.00-27SSE, SEBEMODERATE BREEZESCLEAR0000000259550
1798-10-14T13:0049.40-11.521322.6LANDS ENDN80E83N18E62.00-26SWBS, SSEFRESH GALES WITH HARD SQUALLS, AM LIGHT BREEZESHAZY0000000259551
1798-10-15T13:0049.63-8.602679.3SCILLY ISLANDN22E24E2S156.00-26SW, WNWFRESH BREEZESCLOUDY0000000259552
1798-10-16T12:0049.72-4.822009.3STARTN57E181E1N144.00-25W, SWFRESH BREEZESCLOUDY0000000259553