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- Author or Editor: J. L. H. PAULHUS x
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Abstract
Recently obtained information on rainfall maxima on the island of La Réunion, about 400 mi. east of Madagascar, established new records for durations from 9 hr. to 8 days. Some of the previous record values for 15 to 24 hr. were exceeded also by Taiwan rainfalls, which were, however, of much lower magnitude than those at La Réunion. World-record values for durations from 1 min. to 2 yr. are listed. The envelope curve of these maxima may be defined by the expression R= 16.6 D 0.475, where R is rainfall in inches and D is duration in hours.
Abstract
Recently obtained information on rainfall maxima on the island of La Réunion, about 400 mi. east of Madagascar, established new records for durations from 9 hr. to 8 days. Some of the previous record values for 15 to 24 hr. were exceeded also by Taiwan rainfalls, which were, however, of much lower magnitude than those at La Réunion. World-record values for durations from 1 min. to 2 yr. are listed. The envelope curve of these maxima may be defined by the expression R= 16.6 D 0.475, where R is rainfall in inches and D is duration in hours.
Abstract
A snowfall of 87 inches in 27½ hours on April 14–15, 1921, was reported at Silver Lake, Colo. This snowfall, if correctly measured, exceeds others generally accepted as being record values for the United States. Consequently it is important to determine the reliability of the observation. There is no evidence to indicate that the measurement was any less reliable than that of other heavy snowfalls, and it appears that a snowfall of this magnitude is meterorologically possible. The Silver Lake snowfall is therefore acceptable as the highest known recorded value for the United States.
Abstract
A snowfall of 87 inches in 27½ hours on April 14–15, 1921, was reported at Silver Lake, Colo. This snowfall, if correctly measured, exceeds others generally accepted as being record values for the United States. Consequently it is important to determine the reliability of the observation. There is no evidence to indicate that the measurement was any less reliable than that of other heavy snowfalls, and it appears that a snowfall of this magnitude is meterorologically possible. The Silver Lake snowfall is therefore acceptable as the highest known recorded value for the United States.
Abstract
Three charts of the contiguous United States show (1) the percentage of mean annual total precipitation contributed by daily amounts of 0.50 in. or greater, (2) the average annuaal accumulation of these daily amounts, and (3) the average annual number of days having precipitation of 0.50 in. or greater.
Abstract
Three charts of the contiguous United States show (1) the percentage of mean annual total precipitation contributed by daily amounts of 0.50 in. or greater, (2) the average annuaal accumulation of these daily amounts, and (3) the average annual number of days having precipitation of 0.50 in. or greater.
Abstract
Since 1948, when the Weather Bureau discontinued the practice of publishing interpolated precipitation data, monthly and annual totals have been omitted from its publications whenever any portion of the record was missing. In view of objections by the users of precipitation data, this policy was reviewed for possible revision. A series of tests involving some 1200 storms was conducted to determine if missing records could be satisfactorily estimated by simple procedures which could be applied in the limited time available. Results of these investigations are presented and two methods of interpolation, namely, the normal-ratio and 3-station-average, me selected for use by the Weather Bureau. Procedures to be followed in applying these methods are outlined.
Because of the early deadlines for the issuance of monthly Climatological Data, estimated data, properly identified, will appear in the annual number only, beginning with the 1952 issue. In order to limit the magnitude of the errors of interpolation, annual totals including more than one-third estimated precipitation will not be published.
Abstract
Since 1948, when the Weather Bureau discontinued the practice of publishing interpolated precipitation data, monthly and annual totals have been omitted from its publications whenever any portion of the record was missing. In view of objections by the users of precipitation data, this policy was reviewed for possible revision. A series of tests involving some 1200 storms was conducted to determine if missing records could be satisfactorily estimated by simple procedures which could be applied in the limited time available. Results of these investigations are presented and two methods of interpolation, namely, the normal-ratio and 3-station-average, me selected for use by the Weather Bureau. Procedures to be followed in applying these methods are outlined.
Because of the early deadlines for the issuance of monthly Climatological Data, estimated data, properly identified, will appear in the annual number only, beginning with the 1952 issue. In order to limit the magnitude of the errors of interpolation, annual totals including more than one-third estimated precipitation will not be published.
