[1]ZHU Jiqian,HAN Mei,XU Zehua,et al.Temporal-Spatial Distribution Characteristics and Factors of Different Magnitude Rainfall in Huaihe River Basin[J].Research of Soil and Water Conservation,2019,26(04):87-95.
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Temporal-Spatial Distribution Characteristics and Factors of Different Magnitude Rainfall in Huaihe River Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 04
Page number:
87-95
Column:
Public date:
2019-06-11
- Title:
- Temporal-Spatial Distribution Characteristics and Factors of Different Magnitude Rainfall in Huaihe River Basin
- Keywords:
- Huaihe River Basin; precipitation; precipitation days; sunspot number
- CLC:
- P461.61+3
- DOI:
- -
- Abstract:
- Based on the daily precipitation data of 67 meteorological stations in the Huaihe River Basin in the period 1965—2016, the spatial and temporal distribution characteristics of different magnitude of rainfall in the Huaihe River basin and its influencing factors were analyzed using the Mann-Kendall trend test, inverse distance weighting interpolation, and Morlet wavelet analysis. The results showed that: (1) the annual precipitation of all orders of rainfall in the Huaihe River Basin increased, and the annual precipitation variation of heavy rain was relatively significant; (2) the rainfall in the whole Huaihe River Basin mainly concentrated in middle, large and torrential rain events; (3) the annual precipitation of the rain and middle rain in the Huaihe River Basin decreased from the south to the north by the average, and the rainfall bands at all levels were banded, while the rainfall belts in the heavy rain and the rainstorm had no strip distribution; in addition, the spatial distribution of precipitation days and precipitation of different orders of magnitude was consistent, with the characteristics of ‘from south to north, decreasing in turn’; (4) from 1965 to 2016, the extreme years of sunspot occurrence did not correspond to the extreme years of precipitation in the Huaihe River Basin; the annual precipitation and sunspot number of the rainstorm in the Huaihe River Basin oscillated obviously on the 15-year scale; although the scale could not be completely equivalent, there were intersections, which indicated that the annual precipitation of rainstorm and the number of sunspots were similar to the oscillation period.
- References:
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1900-01-01