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太湖表層懸浮泥沙遙感定量模式研究
摘要：二類水體光學(xué)活性成分的復(fù)雜性導(dǎo)致了水體光學(xué)特性的復(fù)雜性.通過對(duì)太湖區(qū)域?qū)崪y(cè)高光譜數(shù)據(jù)的分析.進(jìn)一步認(rèn)識(shí)了太湖水體的光譜特性與懸浮泥沙濃度之間的關(guān)系:最大反射峰波長隨著懸浮泥沙濃度的增加向短波方向移動(dòng),即藍(lán)移現(xiàn)象;敏感波段區(qū)域的光譜曲線對(duì)波長的積分面積與懸浮泥沙濃度之間具有良好的線性關(guān)系,近似后的梯形面積模型能較好地反映太湖泥沙濃度狀況,并適用于LandSat/TM等多光譜衛(wèi)星影像數(shù)據(jù)反演.梯形面積模型的反演,結(jié)果表明太湖區(qū)域懸浮泥沙濃度主要集中在30～80 mg·L~(-1)之間,分布呈現(xiàn)湖西、湖南和湖心高,湖東低的格局;與實(shí)測(cè)數(shù)據(jù)相比較,反演模型相對(duì)誤差為6.035%.Abstract：The complicated compositions of Case Ⅱ waters result in the complex properties of spectral curves. The present paper analyzed the in situ measurements data of spectral curves, and further realized the relationships between the properties of spectral curves and suspended sediment concentration. The study found that the max peak of spectral curves was moving to the direction of shortwavelength as increasing suspended sediment concentration, namely the blue shift of wavelength; the area enclosed by spectral curve and coordinate axis in the range of sensitive bands had preferably linear relationship with the suspended sediment concentration (curve area model); the trapezoidal area model which was an approximation of curve area model could also excellently reflect those relationships, and be greatly suitable for multi-spectral satellite imagery retrieval such as LandSat/TM, MODIS and so on. The inversion results of trapezoidal area model for LandSat/TM imagery on October 27, 2003 in Taihu Lake showed that the suspended sediment concentration ranged from 30 to 80 mg · L~(-1), the distribution pattern was higher in the west, south and central lake and lower in the east lakes compared with the in situ measurements in the regions, and the relative error of retrieval model was 6. 035%. 作者： 陳軍[1] 周冠華[2] 溫珍河[3] 馬金峰[4] 張旭[5] 彭丹青[2] 楊松林[6] Author： CHEN Jun[1] ZHOU Guan-hua[2] WEN Zhen-he[3] MA Jin-feng[4] ZHANG Xu[5] PENG Dan-qing[2] YANG Song-lin[6] 作者單位： 中國地質(zhì)大學(xué)(北京)海洋學(xué)院,北京100083;青島海洋地質(zhì)研究所,山東青島266071;國土資源部海洋油氣資源與環(huán)境地質(zhì)重點(diǎn)實(shí)驗(yàn)室,山東青島266071北京航空航天大學(xué)儀器科學(xué)與光電工程學(xué)院,北京,100101中國地質(zhì)大學(xué)(北京)海洋學(xué)院,北京100083;青島海洋地質(zhì)研究所,山東青島266071中國科學(xué)院南海海洋研究所,廣東廣州,510301西南大學(xué)地理科學(xué)學(xué)院,重慶,400715國土資源部海洋油氣資源與環(huán)境地質(zhì)重點(diǎn)實(shí)驗(yàn)室,山東青島,266071 期 刊： 光譜學(xué)與光譜分析 ISTICEISCIPKU Journal： SPECTROSCOPY AND SPECTRAL ANALYSIS 年，卷(期)： 2010, 30(1) 分類號(hào)： P208 關(guān)鍵詞： 二類水體 光譜曲線 懸浮泥沙濃度 藍(lán)移 Keywords： CaseII waters Spectral curves Suspended sediment concentration Blue shift 機(jī)標(biāo)分類號(hào)： TV1 TP7 機(jī)標(biāo)關(guān)鍵詞： 太湖區(qū)域 表層 懸浮泥沙濃度 遙感定量 模式研究 Taihu Lake Sediment Concentration Quantitative Model sediment concentration suspended sediment retrieval model distribution pattern area linear relationship satellite imagery 面積模型 coordinate axis spectral curve relative error in situ 基金項(xiàng)目： 國家自然科學(xué)基金，國家科技支撐項(xiàng)目，國家地質(zhì)大調(diào)查專項(xiàng)，中國博士后科學(xué)基金 太湖表層懸浮泥沙遙感定量模式研究[期刊論文] 光譜學(xué)與光譜分析 --2010, 30(1)陳軍 周冠華 溫珍河 馬金峰 張旭 彭丹青 楊松林二類水體光學(xué)活性成分的復(fù)雜性導(dǎo)致了水體光學(xué)特性的復(fù)雜性.通過對(duì)太湖區(qū)域?qū)崪y(cè)高光譜數(shù)據(jù)的分析.進(jìn)一步認(rèn)識(shí)了太湖水體的光譜特性與懸浮泥沙濃度之間的關(guān)系:最大反射峰波長隨著懸浮泥沙濃度的增加向短波方向移動(dòng),即藍(lán)...【太湖表層懸浮泥沙遙感定量模式研究】相關(guān)文章：
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