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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 La Boussole cruise from Macao to Mirabelle started at 1787-02-05 [dataset]. Nederlands Instituut voor Wetenschappelijke Inform, Amsterdam, Netherland, PANGAEA, https://doi.org/10.1594/PANGAEA.750055, 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: 18.372105 * Median Longitude: 118.175263 * South-bound Latitude: 14.380000 * West-bound Longitude: 113.980000 * North-bound Latitude: 22.100000 * East-bound Longitude: 120.550000
Date/Time Start: 1787-02-05T04:00:00 * Date/Time End: 1787-02-23T04:00:00
Event(s):
La_Boussole_17870205_NIWI-F-1573 * Latitude Start: 21.700000 * Longitude Start: 113.857000 * Latitude End: 14.380000 * Longitude End: 120.550000 * Date/Time Start: 1787-02-05T00:00:00 * Date/Time End: 1787-02-23T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: La Boussole (Exploration Ves), Voyage: Macao - Mirabelle, 1st Observer: J.F.G. de La Perouse (Kapitein), Other ship information: 450 TONS, THREE MASTS, SQUARE RIGGED, COMPLEMENT 113. HET GEDRUKTE BOEK HEET: VOYAGE DE LA PEROUSE AUTOUR DU MONDE. (1797), GEREDIGEERD DOOR M.L.A. MILET-MUREAU. HET BETREFT EEN ZEER BEKENDE REIS WAAROVER OP INTERNET VEEL IS GEPUBLICEERD. HET DERDE DEEL BEVAT EEN TABEL MET METEREOLOGISCHE GEGEVENS, DEZE IS HIER VERWERKT. HET SCHIP VOER IN KONVOOI MET L'ASTROLABE, DIT JOURNAAL IS OOK IN TABELVORM WEERGEGEVEN EN GEEFT OOK UITGEBREIDE WEERGEGEVENS.
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
Pressure, atmosphericPPPPhPaNo temperature correction was applied. The following factors have been used for the conversion to hPa: 2.54 cm in an inch; 13.596 specific gravity of mercury; 980.65 cm/s gravity at 45° latitude
Temperature, airTTT°C
LandmarkLandmarkName of first landmark
BearingBearingBearing of the first landmark
10 Distance to landmarkDistancearbitrary unitsDistance to the first landmark
11 LandmarkLandmarkName of second landmark
12 BearingBearingBearing of the second landmark
13 CommentCommentOther remarks, that were not possible to put in the other remark fields
14 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.
15 Sensor readingReadingarbitrary unitsReading of the (outside) air thermometer
16 Sensor readingReadingarbitrary unitsReading of the air pressure
17 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.
18 Wind force descriptionWind force descrAll reported wind forces on this day
19 Present weatherwwWeather description
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 IdentificationIDCLIWOC 2.1 line number
Size:
363 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...)

PPPP [hPa]
(No temperature correction was...)

TTT [°C]

Landmark
(Name of first landmark)

Bearing
(Bearing of the first landmark)
10 
Distance [arbitrary units]
(Distance to the first landmark)
11 
Landmark
(Name of second landmark)
12 
Bearing
(Bearing of the second landmark)
13 
Comment
(Other remarks, that were not ...)
14 
Decl [deg]
(It is generally accepted by t...)
15 
Reading [arbitrary units]
(Reading of the (outside) air ...)
16 
Reading [arbitrary units]
(Reading of the air pressure)
17 
Wind dir descr
(All reported wind directions ...)
18 
Wind force descr
(All reported wind forces on t...)
19 
ww
(Weather description)
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 
ID
(CLIWOC 2.1 line number)
1787-02-05T04:0022.05113.983609.31015.015.0LA GRANDE LADRONEN32W012.00280104.00NBON FRAIS0000000131997
1787-02-06T04:0021.98114.763609.31016.114.4011.50280107.00NBON FRAISBEAU0000000131998
1787-02-07T04:0022.10114.98459.31015.816.9013.50280106.00NEBON FRAISBEAU0000000131999
1787-02-08T04:0021.60115.16459.31017.020.0016.00280201.00NEBON FRAISNÉBULEUX0000000132000
1787-02-09T04:0020.92115.78689.31017.721.3017.00280203.00ENEBON FRAISBEAU0000000132001
1787-02-10T04:0019.95117.06231018.822.5018.00280206.00NNEPAR RAFALESNUAGEUX0000000132002
1787-02-11T04:0018.87118.01459.31017.323.1018.50280202.00NEBON FRAISBEAU0000000132003
1787-02-12T04:0018.52118.28459.31017.025.6020.50280201.00NEBON FRAISBEAU0000000132004
1787-02-13T04:0018.25118.78689.31015.426.3021.00280105.00ENEBON FRAISBEAU0000000132005
1787-02-14T04:0018.18119.661131.01014.326.9021.50280102.00ESEFAIBLEBEAU0000000132006
1787-02-15T04:0018.25119.731581.21014.327.5022.00280102.00SSETRÈS-FAIBLEBEAU0000000132007
1787-02-16T04:0017.90120.332481.21013.127.5LÎLE BANTAIE37S6022.00280007.00WSWTRÈS-FAIBLEBEAU0000000132008
1787-02-17T04:0017.67119.362256.71014.726.3LÎLE BANTAIE19S5021.00280103.00SWPETIT FRAISBEAU0000000132009
1787-02-18T04:0017.02119.512481.21010.635.0LÎLE BANTAIE33S028.00280000.00WSWTRÈS-FAIBLEBEAU0000000132010
1787-02-19T04:0016.38119.653609.31016.926.3LÎLE BANTAIS57E021.00280109.00NBON FRAISBEAU0000000132011
1787-02-20T04:0015.73119.80909.31016.626.9LA POINTE CAPONESN57E021.50280200.00EBON FRAISBEAU0000000132012
1787-02-21T04:0014.82119.75906.71016.628.1LA POINTE CAPONESN57E022.50280200.00EPETIT FRAISBEAU0000000132013
1787-02-22T04:0014.50120.20459.31014.327.3LA POINTE MIRABELLES82E021.80280102.00NEBON FRAISBEAU0000000132014
1787-02-23T04:0014.38120.55906.71018.427.5LES PORCOSN52ELA MOHAN87EMOUILLÉ DANS LE PORT DE MIRABELLE (17:00)022.00280205.00EPETIT FRAISBEAU0000000132015