FY‐2C‐derived diurnal features of clouds in the southern contiguous China

Chen, Haoming; Yu, Rucong; Wu, Bingyi

doi:10.1029/2012jd018125

Cited by 9 publications

(6 citation statements)

References 52 publications

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“…Peaks seldom occur before dawn or after midnight. This pattern, especially in southern China, is in good agreement with previous results from FY‐2 (e.g., Chen et al, ; Jin et al, ). Over ocean, most of the peaks unexpectedly appear in the late afternoon (Figure e), in particular in western Pacific Ocean, which agrees well with the diurnal cycle revealed from 10 year International Satellite Cloud Climatology Project (ISCCP) data (Feng & Fu, ).…”

Section: Resultssupporting

confidence: 92%

“…Xi et al () used both Geostationary Operational Environmental Satellite observations and Atmospheric Radiation Measurement (ARM) data to derive 10 year climatology of cloud fraction (CF) and its vertical distribution. However, there are merely a few studies (e.g., Chen et al ; Jin et al, ) focused on clouds over China using geostationary satellites due to the limited spatiotemporal resolution of second‐generation Fengyun series (FY‐2). On a side note, the development of cloud products from FY‐4 is still undergoing and has recently made substantial advances as summarized in Min et al ().…”

Section: Introductionmentioning

confidence: 99%

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The Cloud Top Distribution and Diurnal Variation of Clouds Over East Asia: Preliminary Results From Advanced Himawari Imager

et al. 2018

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Clouds, as one of the most uncertain factors in climate system, have been intensively studied as satellites with advanced instruments emerged in recent years. However, few studies examine the vertical distributions of cloud top and their temporal variations over East Asia based on geostationary satellite data. In this study, the vertical structures of cloud top and its diurnal variations in summer of 2016 are analyzed using the Advanced Himawari Imager/Himawari‐8 cloud products. Results show that clouds occur most frequently over the southern Tibetan Plateau and the Bay of Bengal. We find a steep gradient of cloud occurrence frequency extending from southwest to northeast China and low‐value centers over the eastern Pacific and the Inner Mongolia Plateau. The vertical structures of cloud top are highly dependent on latitude, in addition to the nonnegligible roles of both terrain and land‐sea thermal contrast. In terms of the diurnal cycle, clouds tend to occur more often in the afternoon, peaking around 1700 local time over land and ocean. The amplitude of cloud diurnal variation over ocean is much smaller than that over land, and complex terrain tends to be linked to larger amplitude. In vertical, the diurnal cycle of cloud frequency exhibits bimodal pattern over both land and ocean. The high‐level peaks occur at almost the same altitude over land and ocean. In contrast, the low‐level peaks over ocean mainly reside in the boundary layer, much lower than those over land, which could be indicative of the frequent occurrence of marine boundary layer clouds.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

The Cloud Top Distribution and Diurnal Variation of Clouds Over East Asia: Preliminary Results From Advanced Himawari Imager

et al. 2018

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“…Figure 3a illustrates that the diurnal peak of the TC to the south of 20 • N appears in the afternoon (12-15 LST), which is closely related to the diurnal variation of convective clouds. Meanwhile, the diurnal peak of the TC at 20-26 • N (i.e., southern China) appears in two periods during the early morning (06-08 LST) and afternoon (11)(12)(13)(14)(15)(16). This is probably due to the diurnal peaks of Ac and Sc in these areas that occur in the early morning and evening and have a great impact on the diurnal variation of the TC occurrence frequency.…”

Section: Diurnal Variation Of Different Types Of Cloudsmentioning

confidence: 99%

“…The diurnal peaks of precipitation in South and Northeast China appear in the afternoon (16-17 LST) (Figure 6c,d). Although the peak precipitation between the Yangtze River valley and the Yellow River valley (region 5) differs among different stations (figure omitted), the diurnal variation of precipitation in this region is generally bimodal with peaks in the early morning (06-08 LST) and afternoon (16)(17)(18). By comparing our results with the diurnal variation characteristics of the precipitation in the five regions from 1991 to 2004 reported by Yu et al (Figure 2 in Yu's article), it is found that the hourly merged precipitation data can effectively reflect the diurnal variation of the precipitation in each region.…”

Section: Diurnal Variation Of Precipitationmentioning

confidence: 99%

“…They found that sea-land and mountain-valley breezes accounted for the propagation of deep convection from sea to land in the afternoon and from land to sea after midnight. Based on hourly infrared brightness temperature data acquired by the FY-2C satellite to classify clouds into cold clouds, middle clouds and warm clouds according to the cloud top temperature, Chen et al analyzed the diurnal variations of three types of clouds in southern China during the summer periods from 2005 to 2008 and the seasonal changes in the diurnal variations of those clouds [16]. Fujinami et al studied the diurnal variations of high clouds and precipitation over the Tibetan Plateau, where observation stations are sparse, using satellite observations.…”

Section: Introductionmentioning

confidence: 99%

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Diurnal Variations of Different Cloud Types and the Relationship between the Diurnal Variations of Clouds and Precipitation in Central and East China

Gao

Chen³

2019

Atmosphere

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In this paper, the diurnal variations of various clouds are analyzed using hourly cloud observations at weather stations in China from 1985 to 2011. In combination with merged hourly precipitation data, the relationship between the diurnal variations of clouds and precipitation in the summers from 2008 to 2011 are studied. The results show that the occurrence frequencies of total cloud and various cloud types exhibit significant diurnal variations. The diurnal variations of the occurrence frequencies of altocumulus and stratocumulus show a bimodal pattern, with peaks appearing in the early morning and late afternoon. The early morning peaks of altocumulus and stratocumulus appear earlier in the summer than in the other seasons, while the late afternoon maxima show an opposite trend. The occurrence frequency of nimbostratus peaks in the morning between 07 and 12 LST (local solar time), and the peak value lags 2 to 3 h from west to east along the Yangtze River valley; meanwhile, the diurnal variation shows no clear differences caused by changes in the latitude or seasons. Cumulus shows an afternoon (14 LST) maximum, while cumulonimbus peaks in the late afternoon during 16–20 LST, and both of them present a great diurnal range. Cirrus usually reaches its peak at 17–18 LST, and it differs by 1 to 2 h with a change in the latitude. The results of the study first show that the diurnal variations of precipitation among different regions are dominated by different clouds. The upper reaches of the Yangtze River valley present a midnight precipitation maximum that is mainly dominated by cumulonimbus. For the middle reaches of the Yangtze River valley impacted by nimbostratus, the precipitation peaks in the early morning. In South and Northeast China, the precipitation peaks in the afternoon and is determined by the diurnal variations of convective clouds. In the region between the Yangtze River valley and Yellow River valley, the precipitation peaks in the early morning and afternoon; the early morning peak is mainly determined by stratiform clouds, while the afternoon peak is closely related to convective clouds.

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Diurnal variations of cloud optical properties during day-time over China based on Himawari-8 satellite retrievals

Min

2022

Atmospheric Environment

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FY‐2C‐derived diurnal features of clouds in the southern contiguous China

Cited by 9 publications

References 52 publications

The Cloud Top Distribution and Diurnal Variation of Clouds Over East Asia: Preliminary Results From Advanced Himawari Imager

The Cloud Top Distribution and Diurnal Variation of Clouds Over East Asia: Preliminary Results From Advanced Himawari Imager

Diurnal Variations of Different Cloud Types and the Relationship between the Diurnal Variations of Clouds and Precipitation in Central and East China

Diurnal variations of cloud optical properties during day-time over China based on Himawari-8 satellite retrievals

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