Citation:

PANGAEA.611088

Always quote citation above when using data! You can download the citation in several formats below.

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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

Project(s):

Climatological Database for the Worlds Oceans: 1750-1854 (CLIWOC)

Funding:

Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00090 : Climatological Database for the Worlds Oceans: 1750-1854

Coverage:

Median Latitude: 22.474706 * Median Longitude: 66.525882 * South-bound Latitude: 19.030000 * West-bound Longitude: 60.130000 * North-bound Latitude: 24.530000 * East-bound Longitude: 72.110000

Date/Time Start: 1773-02-24T00:00:00 * Date/Time End: 1773-03-15T08:00:00

Event(s):

Swallow_17730224_NMM_ADM/L/S569 * Latitude Start: 20.740000 * Longitude Start: 72.380000 * Latitude End: 24.520000 * Longitude End: 59.390000 * Date/Time Start: 1773-02-24T00:00:00 * Date/Time End: 1773-03-15T00:00:00 * Campaign: * Method/Device: Underway cruise track measurements (CT) * Comment: Ship: Swallow (Sloop), Voyage: Surat - Muscat, 1st Observer: Thomas Underwood (Captain), 2nd Observer: James Robert Mosse (1st Officer/Master), Company: Royal Navy, Other ship information: 302BM

Parameter(s):

#	Name	Short Name	Unit	Comment
1	DATE/TIME	Date/Time		Geocode
2	LATITUDE	Latitude		Geocode
3	LONGITUDE	Longitude		Geocode
4	Wind direction	dd	deg	Wind 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.
5	Wind speed	ff	m/s	calculated from the descriptive terms of wind force given in the observations
6	Landmark	Landmark		Name of first landmark
7	Bearing	Bearing		Bearing of the first landmark
8	Distance to landmark	Distance	arbitrary units	Distance to the first landmark
9	-	-		1 If position is considered to be coastal (in port or near coastal disturbances)
10	Course	Course		Course of the ship during the past 24 hours
11	Distance	Distance	arbitrary units	Distance travelled during the previous 24 hours
12	Declination	Decl	deg	It 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 description	Wind dir descr		All reported wind directions on this day. The wind direction is the direction that points to where the wind comes from.
14	Wind force description	Wind force descr		All reported wind forces on this day
15	Clearness	Clearness
16	Gusts	Gusts		1 If wind gusts are reported
17	Precipitation/Rain	Rain		1 If rain was reported
18	Fog	Fog		1 If fog was reported
19	Snow type	Snow		1 If snow was reported
20	Thunder	Thunder		1 If thunder and or lightning was reported
21	Hail	Hail		1 If hail was reported
22	Sea ice	Sea ice		1 If sea-ice or icebergs were reported
23	Identification	ID		CLIWOC 2.1 line number

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

370 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Date/Time	2 Latitude	3 Longitude	4 dd [deg] (Wind direction (from which th...)	5 ff [m/s] (calculated from the descripti...)	6 Landmark (Name of first landmark)	7 Bearing (Bearing of the first landmark)	8 Distance [arbitrary units] (Distance to the first landmark)	9 - (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 Clearness	23 ID (CLIWOC 2.1 line number)
1773-02-24T00:00	20.72		362	6.7	PARNILLA HILL	SE1/2E	3	1				NW, VARIABLE	MODERATE	HAZY	248247
1773-02-25T00:00	20.22		362	1.0	CAPE ST JOHNS	SE	4					NW, VARIABLE	LIGHT AIRS		248248
1773-02-26T00:00	19.77		304	1.0	CAPE ST JOHNS	NEBN	8					WSW, VARIABLE, NWBW	LIGHT AIRS		248249
1773-02-27T07:00	19.68	72.11	362	6.7	CAPE ST JOHNS	N54E	13		N54W	40.00	-2	NW, VARIABLE	MODERATE	FAIR	248250
1773-02-28T07:00	19.87	71.73	362	1.0	CAPE ST JOHNS	N78E	19		N65W	24.00	-2	NW, VARIABLE	LIGHT AIRS	CLOUDY	248251
1773-03-01T07:00	19.03	70.70	362	6.7	CAPE ST JOHNS	N70E	40		S63W	66.00	-2	VARIABLE	MODERATE	MODERATE	248252
1773-03-02T07:00	20.15	69.13	21	6.7	CAPE ST JOHNS	S88E	71		N62W	100.00	-2	NE, NNE	MODERATE	MODERATE	248253
1773-03-03T07:00	20.43	67.86	362	6.7	CAPE ST JOHNS	S85E	89		N76W	73.00	-2	VARIABLE	MODERATE	MODERATE	248254
1773-03-04T07:00	20.77	67.61	362	6.7	CAPE ST JOHNS	S81E	96		N34W	25.00	-2	NNW, VARIABLE	MODERATE	MODERATE	248255
1773-03-05T07:00	21.73	67.65	362	2.6	MUSCAT	N75W	155		N2E	58.00	-2	NNW, VARIABLE	LIGHT BREEZES	FAIR	248256
1773-03-06T07:00	23.32	67.58	362	2.6	MUSCAT	N87W	150		N3W	95.00	-2	NBW, WBN, VARIABLE	LIGHT BREEZES	FAIR	248257
1773-03-07T08:00	23.58	67.38	266	6.7	MUSCAT	S88W	147		N19W	41.00	-4	W	MODERATE	FAIR	248258
1773-03-08T08:00	23.85	66.73	266	6.7	MUSCAT	S89W	135		S79W	34.00	-4	W	MODERATE	FAIR	248259
1773-03-09T08:00	23.70	65.76	266	6.7	MUSCAT	N89W	117		S80W	54.00	-4	W	MODERATE	FAIR	248260
1773-03-10T08:00	24.48	65.23	266	6.7	MUSCAT	S82W	107		S82W	90.00	-4	W	MODERATE	FAIR	248261
1773-03-11T08:00	24.28	64.31	7	6.7	MUSCAT	S83W	90		S76W	52.00	-4	WNW, NNW, NBE	MODERATE	FAIR	248262
1773-03-12T08:00	23.85	63.31	362	6.7	MUSCAT	S88W	73		S64W	61.00	-4	VARIABLE	MODERATE	HAZY	248263
1773-03-13T08:00	24.32	62.61	362	2.6	MUSCAT	S78W	59		N54W	47.00	-4	VARIABLE	LIGHT BREEZES	HAZY	248264
1773-03-14T08:00	24.53	61.11	198	2.6	MUSCAT	S67W	34		N87W	83.00	-5	SSW	LIGHT BREEZES	HAZY	248265
1773-03-15T08:00	24.50	60.13	362	2.6	MUSCAT	S39W	20		N83W	55.00	-5	SSW, VARIABLE	LIGHT BREEZES	HAZY	248266