Report of meteorological observations for the year 1910, with extremes and averages for the preceding years / by John Dover.

  • Dover, John.
Date:
1910
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Report of meteorological observations for the year 1910, with extremes and averages for the preceding years / by John Dover. Source: Wellcome Collection.

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    registers only “ bright sunshine”; weak sunshine is not powerful enough to burn the recording cards. I frequently note that the sky is quite clear at Totland while the New Forest and the valleys of the Avon and Yar Rivers are clothed in vapour. Owing to surrounding objects it is impossible to measure bright sunshine during the last hour before sunset; therefore sunshine at Totland is rather more than I record. There is a marked absence of thunderstorms at this station ; thus we do not often get the opportunity of watching the glories of a near storm. This is accounted for by the line of Downs rising almost perpendicularly from the sea to the South and coming to a fine point at the Needles to the South-West, thus diverting the storms from the South and West, sending them up the Solent or English Channel. In the north and east there are the attractions of the New Forest and Parkhurst Wilderness. The prevailing winds here are West 77 days, South-West 66 days, North-West 52 days of the average year. Humidity is calculated with Glaisher’s Hygrometrical Tables, eighth edition (Saturation = 100). A fall of one inch of rain is equivalent to 101 tons of water to the acre. One ton of water = 224 gallons. A day is termed w7et if one-hundredth of an inch of rain fall. A day is called foggy if one cannot see two miles, which is rather a stricter test than usual at most stations. Hurst Castle is two miles due north from this meteorological station. In this year’s pamphlet I give the average of each day of the past 24 years’ Maximum, Minimum, and Mean Temperatures. The average of each day is calculated to two places of decimals, and entered to the nearest wThole numbers ; thus 50.50 Fah. up to 51.49 Fah., would be quoted as 51° Fah., while 51.50 Fah. up to 52.49 Fah. would be entered as 52° Fah. In conclusion I may add that I should be glad to receive any corrections or suggestions for the further spread of meteorological knowledge, in case I should have the time to bring out a similar work next year. %j Aston House, Totland Bay. JOHN DOVER.