The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China
This paper studies the stochastic dynamic variability of precipitation, for the upper, middle, and lower reaches of the Heihe River basin in Northwest China, by employing Mann-Kendall statistic, Pettitt test, and wavelet transform methods. The possible associations with three prominent climatic patt...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2016/1078617 |
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| _version_ | 1849306822136037376 |
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| author | Fei Wang Jun Niu |
| author_facet | Fei Wang Jun Niu |
| author_sort | Fei Wang |
| collection | DOAJ |
| description | This paper studies the stochastic dynamic variability of precipitation, for the upper, middle, and lower reaches of the Heihe River basin in Northwest China, by employing Mann-Kendall statistic, Pettitt test, and wavelet transform methods. The possible associations with three prominent climatic patterns, El Niño-Southern Oscillation (ENSO), Artic Oscillation (AO), and Indian Ocean Dipole (IOD), are examined by using multiscale wavelet coherence method. No significant trend is identified for the interannual precipitation variability. However, about 2-year significant variability is detected for the lower reach of the Heihe River basin, and this dominating precipitation variability is essentially depicted by AO. The possible influences of ENSO are exerted on long-term timescale, 8–16 years. The obtained knowledge is helpful for the predications of extreme hydroclimatological events and better reservoir operations for regional water resources. |
| format | Article |
| id | doaj-art-1e712a425d1846c6a5ba9e1858e09a6f |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-1e712a425d1846c6a5ba9e1858e09a6f2025-08-20T03:54:57ZengWileyAdvances in Meteorology1687-93091687-93172016-01-01201610.1155/2016/10786171078617The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest ChinaFei Wang0Jun Niu1Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaCenter for Agricultural Water Research in China, China Agricultural University, Beijing 100083, ChinaThis paper studies the stochastic dynamic variability of precipitation, for the upper, middle, and lower reaches of the Heihe River basin in Northwest China, by employing Mann-Kendall statistic, Pettitt test, and wavelet transform methods. The possible associations with three prominent climatic patterns, El Niño-Southern Oscillation (ENSO), Artic Oscillation (AO), and Indian Ocean Dipole (IOD), are examined by using multiscale wavelet coherence method. No significant trend is identified for the interannual precipitation variability. However, about 2-year significant variability is detected for the lower reach of the Heihe River basin, and this dominating precipitation variability is essentially depicted by AO. The possible influences of ENSO are exerted on long-term timescale, 8–16 years. The obtained knowledge is helpful for the predications of extreme hydroclimatological events and better reservoir operations for regional water resources.http://dx.doi.org/10.1155/2016/1078617 |
| spellingShingle | Fei Wang Jun Niu The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China Advances in Meteorology |
| title | The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China |
| title_full | The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China |
| title_fullStr | The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China |
| title_full_unstemmed | The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China |
| title_short | The Implication of Climate Signal for Precipitation in the Heihe River Basin, Northwest China |
| title_sort | implication of climate signal for precipitation in the heihe river basin northwest china |
| url | http://dx.doi.org/10.1155/2016/1078617 |
| work_keys_str_mv | AT feiwang theimplicationofclimatesignalforprecipitationintheheiheriverbasinnorthwestchina AT junniu theimplicationofclimatesignalforprecipitationintheheiheriverbasinnorthwestchina AT feiwang implicationofclimatesignalforprecipitationintheheiheriverbasinnorthwestchina AT junniu implicationofclimatesignalforprecipitationintheheiheriverbasinnorthwestchina |