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| 1 | Satellite-derived surface water pCO_2 and air-sea CO_2 fluxes in the northern South China Sea in summer显示文摘An empirical approach is presented for the estimation of the partial pressure of carbon dioxide (pCO2) and air-sea CO2 fluxes in the northern South China Sea in summer using satellite-derived sea surface temperatures (SSTs), chlorophyll-a (Chl a) concentrations, and wind fields. Two algorithms were tested. The first used an SST-dependent equation, and the other involved the introduction of Chl a. Regression equations were developed for summer based on in situ data obtained in July, 2004. Using the monthly average SST and Chl a fields derived from the advanced very high resolution radiometer (AVHRR) and the SeaWiFS (sea-viewing wide field of view sensor), respectively, the monthly pCO2 fields were computed. The derived pCO2 was compared with the shipboard pCO2 observations conducted in July, 2000. This resulted in a root-mean-square error of 4.6 latm, suggesting that the satellite-derived pCO2 was in general agreement with the in situ observations. The air-sea CO2 flux was further computed with the aid of the monthly mean QuikSCAT wind speed. We contend that more shipboard data are necessary for refining the empirical algorithms and reducing the uncertainty in the results. | Yu Zhu Shaoling Shang Weidong Zhai Minhan Dai | 2009 | Progress in Natural Science:Materials International2009，19，6： | 7 |
| 2 | Evolution of a coastal upwelling event during summer 2004 in the southern Taiwan Strait显示文摘A coastal upwelling event in the southern Taiwan Strait (STWS) was investigated using intensive cruise surveys (four repeated transects in a month) and satellite data in July and early August 2004.The extensive upwelling-associated surface cold water was first observed in early July (~2.0×10 4 km 2) along the STWS coast.Then,the cold surface water reduced in size by ~50% with decreased chlorophyll concentrations after 15 days,indicating the weakening of the upwelling event.At the end of July,the cold surface water disappeared.The temporal variations of the surface cold water and the 3-D hydrography around Dongshan Island are thought to be mainly attributed to the weakened upwelling-favorable southwestern wind,the asymmetric spatial structure of the wind field and the intrusion of warm water from the northern South China Sea. | ZHANG Caiyun HONG Huasheng HU Chuanmin SHANG Shaoling | 2011 | Acta Oceanologica Sinica2011，30，1： | 4 |
| 3 | A preliminary study of the variation of phytoplankton absorption coefficients in the northern South China Sea显示文摘The temporal and spatial variabilities of phytoplankton absorption coefficients (a ph (λ)) and their relationships with physical processes in the northern South China Sea were examined, based on in situ data collected from two cruise surveys during May 14 to 25, 2001 and November 2 to 21, 2002. Significant changes in the surface water in a ph values and B/R ratios (a ph (440)/a ph (675)) were observed in May, which were caused by a phytoplankton bloom on the inner shelf stimulated by a large river plume due to heavy precipitation. This is consistent with the observed one order of magnitude elevation of chlorophyll a and a shift from a pico/nano dominated phytoplankton community to one dominated by micro-algae. Enhanced vertical mixing due to strengthened northeast monsoon in November has been observed to result in higher surface a ph (675) (0.002–0.006 m-1 higher) and less pronounced subsurface maximum on the outer shelf/slope in November as compared with that in May. Measurements of a ph and B/R ratios from three transects in November revealed a highest surface a ph (675) immediately outside the mouth of the Zhujiang (Pearl) River Estuary, whereas lower a ph (675) and higher B/R ratios were featured in the outer shelf/slope waters, demonstrating the respective influence of the Zhujiang River plume and the oligotrophic water of the South China Sea. The difference in spectral shapes of phytoplankton absorption (measured by B/R ratios and bathochromic shifts) on these three transects infers that picoprocaryotes are the major component of the phytoplankton community on the outer shelf/slope rather than on the inner shelf. A regional tuning of the phytoplankton absorption spectral model (Carder et al., 1999) was attempted, demonstrating a greater spatial variation than temporal variation in the lead parameter a 0 (λ). It was thus implicated that region-based parameterization of ocean color remote sensing algorithms in the northern South China Sea was mandatory. | WU Jingyu HONG Huasheng SHANG Shaoling DAI Minhan LEE Zhongping LI Shaojing | 2009 | Acta Oceanologica Sinica2009，28，5： | 2 |
| 4 | REMOTE SENSING OF ALGAL BLOOMS USING A TURBIDITY-FREE FUNCTION FOR NEAR-INFRARED ANDRED SIGNALS显示文摘This article presents a method for real- time mapping of algal blooms in turbid coastal waters using the remote sensing reflectance of red band (Channel 1, 580-680 nm) and near-infrared band (Channel 2, 720-1100 nm) of the AVHRR sensor on the NOAA series satellites. A turbidity-free function for near-infrared and red signals, α0 = (bb(1)/bb(2))(a(2)/ a(1)) based on the first order bb/(a+bb) model deduc-ing equation Rrs(2)?1 = α0 Rrs(1) ?1+ g?1 (1?α0), were se-lected as a chlorophyll-a related index for detecting algal blooms, and the algal blooms with chlorophyll-a concentration of 64-256 mg/L could be defined by window of 1.6 < α0 < 5.2 and 0.01< Rrs(2)/g < 0.2. Such turbidity-free two-band method is supported by both sea-truth data and remote sensing experiment for an algal blooms event on the near-shore water off the Minjiang estuary of southeastern China during early June of 2003. Comparisons of this algorithm with other published algorithms, one-band method (i.e. method of bright water) or two-band methods (i.e. method of ratio, method of NDVI, and method of subtracting) have suggested that the turbidity-free function method could be regarded as a standard algorithm in capabilities of AVHRR imagery or other high resolution but wide near-infrared and red band imagery for detecting algal blooms events in coastal waters. | LI Yan SHANG Shaoling ZHANG Caiyun MA Xiaoxin HUANG Liwei WU Jingyu ZENG Yindong | 2006 | Chinese Science Bulletin2006，51，4： | 2 |
| 5 | Changes of temperature and bio-optical properties in the South China Sea in response to Typhoon Lingling, 2001显示文摘 | SHANG Shaoling LI Li SUN Fengqin | 2008 | Geophysical Research Letters2008，35，10： | 1 |
| 6 | An algorithm to retrieve absorption coefficient of chromophoricdissolved organic matter from ocean color显示文摘 | DONG QIANG SHANG SHAOLING LEE ZHONGPING 2013 | 2013 | Remote Sensingof Environment2013，128，： | 1 |
| 7 | Bridging between SeaWiFS and MODIS for continuity of chlorophyll-a concentration assessments off Southeastern China显示文摘 | ZHANG CAIYUN HU CHUANMIN SHANG SHAOLING | 2006 | Rem Sens Environ2006，102，： | 1 |
| 8 | Interannual variability of summer coastal upwelling in the Taiwan Strait显示文摘 | Hong Huasheng Zhang Caiyun Shang Shaoling | 2009 | Continental Shelf Research2009，29，2： | 1 |
| 9 | Changes of temperature and bio-optical properties in the South China Sea in response to Typhoon Lingling, 2001 显示文摘 | SHANG Shaoling LI Li SUN Fcngqin | 2008 | Geophysical Rcscarch Letters2008，35，10： | 1 |
| 10 | Phytoplankton bloom during the northeast monsoon in the Luzon Strait bordering the Kuroshio显示文摘 | Shang Shaoling Li Li Li Jun | 2012 | Remote Sensing of Environment2012，124，： | 1 |
| 11 | Variation of phytoplankton absorption coefficients in the northern South China Sea during spring and autumn显示文摘 | WU JINGYU HONG HUASHENG SHANG SHAOLING | 2007 | Biogeosciences Discussions2007，4，： | 1 |
| 12 | Absorption and fluorescence of chromophoric dissolved or- ganic matter in the Pearl River Estuary, South China 显示文摘 | HONG HUASHENG WU JINGYU SHANG SHAOLING | 2005 | Marine Chemistry2005，97，12： | 1 |
| 13 | Impact of Temperature on Absorption Coefficient of Pure Seawater in the Blue Wavelengths Inferred from Satellite and In Situ Measurements显示文摘There has been a long history of interest on how(if)the absorption coefficient of“pure”fresh water(a_(fw)(λ))and“pure”seawater(a_(sw)(λ))changes with temperature(T),yet the impact of T reported in the literature differs significantly in the blue domain.Unlike the previous studies based on laboratory measurements,we took an approach based on~18 years(2002–2020)of MODIS ocean color and temperature measurements in the oligotrophic oceans,along with field measured chlorophyll concentration and phytoplankton absorption coefficient,to examine the relationship between T and the total absorption coefficient(a(λ))at 412 and 443 nm.We found that the values of a(412)and a(443)in the summer are nearly flat(slightly decreasing)for the observed T range of~19–27℃.Since there are no detectable changes of chlorophyll during this period,the results suggest that T has a negligible impact on a_(sw)(412) and a_(sw)(443)in this T range.As a complement,the impact of salinity on a_(fw)(λ) was also evaluated using three independent determinations of a_(sw)(λ) and a_(fw)(λ),where good agreements were found from these observations. | Guomei Wei Zhongping Lee Xiuling Wu Xiaolong Yu Shaoling Shang Ricardo Letelier | 2021 | Journal of Remote Sensing2021，，1： | 1 |
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