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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 NISUS cruise from Batavia to Port Louis started at 1811-09-27 [dataset]. National Maritime Museum, Greenwich, United Kingdom, PANGAEA, https://doi.org/10.1594/PANGAEA.750949, 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: -20.182500 * Median Longitude: 78.517917 * South-bound Latitude: -26.480000 * West-bound Longitude: 57.500000 * North-bound Latitude: -5.700000 * East-bound Longitude: 106.000000
Date/Time Start: 1811-09-27T05:00:00 * Date/Time End: 1811-10-20T08:00:00
Event(s):
Nisus_18110927_NMM_RUSI/NM/180/10 * Latitude Start: -6.100000 * Longitude Start: 106.860000 * Latitude End: -21.200000 * Longitude End: 58.170000 * Date/Time Start: 1811-09-27T00:00:00 * Date/Time End: 1811-10-20T00:00:00 * Campaign: Cliwoc_cruise * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Nisus (5th Rate Frigate), Voyage: Batavia - Port Louis, 1st Observer: Philip Beaver (Captain), Company: Royal Navy, Other ship information: 38G 1071BM
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 --1 If position is considered to be coastal (in port or near coastal disturbances)
12 CourseCourseCourse of the ship during the past 24 hours
13 DistanceDistancearbitrary unitsDistance travelled during the previous 24 hours
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 Current direction descriptionCur dir descrDirection of the current. This direction points to where the current is flowing towards to.
19 Current speed descriptionV descr
20 Wind force descriptionWind force descrAll reported wind forces on this day
21 Present weatherwwWeather description
22 Precipitation descriptionPrecip descr
23 ClearnessClearness
24 GustsGusts1 If wind gusts are reported
25 Precipitation/RainRain1 If rain was reported
26 FogFog1 If fog was reported
27 Snow typeSnow1 If snow was reported
28 ThunderThunder1 If thunder and or lightning was reported
29 HailHail1 If hail was reported
30 Sea iceSea ice1 If sea-ice or icebergs were reported
31 CommentComment
32 IdentificationIDCLIWOC 2.1 line number
Size:
602 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 
-
(1 If position is considered t...)
12 
Course
(Course of the ship during the...)
13 
Distance [arbitrary units]
(Distance travelled during the...)
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 
Cur dir descr
(Direction of the current. Thi...)
19 
V descr
20 
Wind force descr
(All reported wind forces on t...)
21 
ww
(Weather description)
22 
Precip descr
23 
Clearness
24 
Gusts
(1 If wind gusts are reported)
25 
Rain
(1 If rain was reported)
26 
Fog
(1 If fog was reported)
27 
Snow
(1 If snow was reported)
28 
Thunder
(1 If thunder and or lightning...)
29 
Hail
(1 If hail was reported)
30 
Sea ice
(1 If sea-ice or icebergs were...)
31 
Comment
32 
ID
(CLIWOC 2.1 line number)
1811-09-27T05:00-5.70106.003620.01011.228.9BUTTON ROCKSSW1/2W111084.00290806.00NNE, SW, WSW, VARIABLE, NNE, SWBW, SSEAM LIGHT WINDS, LIGHT AIRS, CALM, PM LIGHT AIRSAM HEAVY RAINAM CLOUDY, DARK CLOUDY WEATHER0100000178158
1811-09-28T05:00-7.25104.121359.31011.928.6CHRISTMAS ISLANDS20E213S45W90.00083.50290808.00SSE, SEBE, SEFRESH BREEZESAM HAZY, PM CLEAR0000000178159
1811-09-29T05:00-9.92101.551359.31012.327.2COCOS ISLANDS69W298S41W211.00081.00290809.00SE, SEBEW26FRESH BREEZESCLOUDY0000000178160
1811-09-30T05:00-12.6298.651229.31012.926.4RODRIGUESS78W2085S42W210.00-279.50290901.00SEBE, ESE, SE, SEBE, ESE, SES84W38FRESH BREEZESCLOUDY0000000178161
1811-10-01T06:00-14.5296.301446.71013.325.3RODRIGUESS81W1888S43W169.00-277.50290902.00SE, SEBS, SSE, SEN64W22MODERATE BREEZES, PM MODERATE BREEZES, FRESH BREEZESCLOUDY0000000178162
1811-10-02T06:00-16.6393.621339.31014.023.9RODRIGUESS84W1741S46W207.00-275.00290904.00SE, SEBS,N30W23FRESH BREEZESCLOUDY0000000178163
1811-10-03T06:00-19.0790.331319.31015.623.3RODRIGUESS89W1536S51W225.00-474.00290909.00SEBS, SE, SEBEN65W23FRESH BREEZES, PM SQUALLYAM CLOUDY0000000178164
1811-10-04T06:00-21.0786.631319.31016.723.3RODRIGUESN86W1328S55W230.00-474.00300002.00SEBE, EBS, ESE, SEBE, SEN69W27AM MODERATE BREEZES, SQUALLY, FRESH BREEZES, PM FRESH BREEZESAM HEAVY RAINCLOUDY0100000178165
1811-10-05T06:00-22.5882.73616.71016.723.6RODRIGUESN81W1113S63W216.00-774.50300002.00ESE, E, ENE, EBNN72W26AM FRESH BREEZES, MODERATE BREEZES, PM MODERATE BREEZESAM CLOUDY, PM HAZY0000000178166
1811-10-06T07:00-23.3880.352731008.922.5ROMEIROS DOS CASTILHANOSS50W473S69W135.00-872.50290709.00EBN, NBE, WBN, W, SSW, WSWAM MODERATE BREEZES, SQUALLY, PM MODERATE BREEZESTHICK, DIRTY UNSETTLEDAM RAIN, PM RAINAM CLOUDY, PM HAZY0100000178167
1811-10-07T07:00-22.9579.732402.61006.819.7RODRIGUESN78W919N74W35.00-867.50290703.00SW, SWBW, WSW, W, WBSNW22AM LIGHT AIRS, LIGHT WINDS, PM MODERATE BREEZESAM HAZY, PM CLOUDY0000000178168
1811-10-08T07:00-21.8779.572996.71011.621.7RODRIGUESN82W935N36W62.00-571.00290807.00WBN, WNW, NWBW, WBN, WBSN62E30AM MODERATE BREEZES, PM FRESH BREEZES, MODERATE BREEZESAM CLEAR, PM CLOUDY0000000178169
1811-10-09T07:00-21.7078.821866.71016.722.2ROUND ISLANDN84W1193N85W53.00-572.00300002.00SWBW, SWBS, SBW, SN56E17MODERATE BREEZES, PM SQUALLYUNSETTLEDCLOUDY0000000178170
1811-10-10T07:00-22.0775.631741018.722.2ROUND ISLANDN82W1017S74W186.00-672.00300008.00S, SBE, SSE, S, SSE, SBEN9E31AM SQUALLY, PM FRESH BREEZES AND SQUALLY, MODERATE BREEZESCLOUDY0000000178171
1811-10-11T07:00-22.7872.751716.71017.721.9ROUND ISLANDN79W939S69W160.00-971.50300005.00SBE, SSE, S, SSEN32W18MODERATE BREEZESPM FINEAM CLOUDY0000000178172
1811-10-12T07:00-23.4770.381801017.722.5ROUND ISLANDN73W732S66W126.00-1172.50300005.00SSE, SEBS, SBW, S, SBEN59W29PM MODERATE BREEZES, SQUALLYAM DARK CLOUDY WEATHER, PM CLOUDY0000000178173
1811-10-13T07:00-24.3767.981356.71019.422.8ROUND ISLANDN64W621S66W153.00-1173.00300100.00SBE, SSE, SE, SEBS, ESEN72E13AM MODERATE BREEZES, PM LIGHT BREEZES, SQUALLYPM FINEPM RAINAM CLOUDY0100000178174
1811-10-14T08:00-25.1065.45219.31019.022.2ROUND ISLANDN53W528S67W163.00-1372.00300009.00SE, ESE, E, EBN, NEBN, NBE, NBWN12E19AM FRESH BREEZES, PM MODERATE BREEZESPM FINEAM CLOUDY0000000a trivial correction was made in this observation178175
1811-10-15T08:00-25.4763.303022.61018.423.1ROUND ISLANDN41W455S77W114.00-1373.50300007.00NBW, NNW, NWBN, NW, SWBW, SW, SSE0AM LIGHT WINDS, PM MODERATE BREEZES, SQUALLY, STRONG BREEZESPM RAINAM CLEAR, PM CLOUDY0100000178176
1811-10-16T08:00-25.2359.621439.31022.121.1ROUND ISLANDN18W340S89W199.00-1570.00300108.00SSE, SE, SEBS, SSE, SEN14W17AM FRESH BREEZES, PM STRONG BREEZESAM THICK CLOUDY WEATHER, CLEAR, PM CLOUDY0000000178177
1811-10-17T08:00-26.4857.6213112.31023.821.9ROUND ISLANDN1W399S54W104.00-1571.50300203.00SE, SEBS, SSE, SEBES50W31STRONG BREEZES AND SQUALLYPM SHOWERS1000000178178
1811-10-18T08:00-25.6857.50989.31022.421.9ROUND ISLANDN3E350N2W58.00-1571.50300109.00SEBE, EBS, ESE, EBSS52W17AM STRONG BREEZES AND SQUALLY, FRESH BREEZES, PM MODERATE BREEZESAM RAINAM HAZY, PM CLOUDY0100000178179
1811-10-19T08:00-23.2757.63759.31021.723.1ROUND ISLANDN1E206N1E150.00-1573.50300107.00EBS, ENE, EBN, E, ESES78W7AM MODERATE, SQUALLY, FRESH BREEZES, PM MODERATE BREEZESPM FINEAM CLOUDY0000000178180
1811-10-20T08:00-21.2058.171016.71020.723.3ROUND ISLANDN16W85N19E140.00-1274.00300104.00ESE, SEBES54W12MODERATE BREEZESCLOUDY0000000178181