ISSN:0035-9009    

DOI:10.1002/qj.49705824702

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824703

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824704

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824705

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824706

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824707

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

摘要:

AbstractThe mean annual rainfall in each five‐degree zone was calculated separately for the land and sea areas by a planimetric method, using the best available rainfall charts for each country or ocean. The results show maxima over the land in latitude 0‐5°S., and 50°‐60°S., a minimum in latitude 30°S.; over the sea, maxima in 50°N., 0‐10°N. and 40°‐45°S., minima in 40°‐50°N., 20°‐30°N. and 20°S. The figures are compared with those obtained by previous investigators. The average zonal rainfalls in each month are then computed from the annual figures by means of the annual variation at a representative series of stations, island stations being employed for the oceans. An appendix gives the average rainfall of a nu

ISSN:0035-9009    

DOI:10.1002/qj.49705824708

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

摘要:

AbstractA detailed study of the rainfall at Rothamsted over the 76 harvest years, 1854‐1929, has revealed the fact that not only have there been sensible changes in the average yearly rainfall of a similar character to those observed at other stations in England and Wales, but the distribution of rainfall throughout the year has changed. The maximum in autumn (and equally the minimum in spring) occurs significantly later to‐day than was the case 76 years ago, but there is some sign that this movement is now reversing its direction, as appeared to have happened towards the end of the eighteenth and again in the middle of the nineteenth centuries, as judged from early records at a number of other stations. It would be interesting to have similar detailed analyses of the rainfall data at other places. The British Rainfall Organization is responsible for collecting the records of a very large number of stations, and a useful supplement to the monthly values now recorded would be a statement of the numerical constants specifying the distribution of rainfall throughout each year, taking as a unit a period of six days, or some other agreed number. The calculations for each year can be made on a single sheet of foolscap, and might form a routine operation at each station at the close of the year. If done for a large number of stations this analysis would furnish valuable climatological information on the general character of the incidence of rainfall over the whole country. Given information of an equal precision as to crop yield or other data of agricultural importance, the value of such rainfall distribution constants would be very great for the purposes of agricultural meteorol

ISSN:0035-9009    

DOI:10.1002/qj.49705824709

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824710

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY

ISSN:0035-9009    

DOI:10.1002/qj.49705824711

出版商:John Wiley&Sons, Ltd    

年代:1932

数据来源: WILEY