本文關(guān)鍵詞： 輻射傳輸模型 葉片反射率 PROSPECT模型 穩(wěn)健估計　出處：《武漢大學(xué)學(xué)報(信息科學(xué)版)》2017年05期 　論文類型：期刊論文

【摘要】：根據(jù)闊葉葉片模型(a model of leaf optical properties spectra,PROSPECT)葉片輻射傳輸模型機(jī)理,利用一次范數(shù)穩(wěn)健估計估算葉片結(jié)構(gòu)參數(shù)N和銅元素的吸收系數(shù)kCu。選取黑龍江呼瑪?shù)貐^(qū)作為研究區(qū),利用美國ASD公司的FieldSpec 3Hi-Res光譜儀野外測定白樺葉片的反射光譜,實(shí)驗室測定相應(yīng)葉片的銅含量,利用改進(jìn)的PROSPECT-Cu模型進(jìn)行白樺葉片銅元素含量反演。通過與野外樣品測定值和反演值進(jìn)行比較分析,決定系數(shù)為0.963。研究結(jié)果表明,反演結(jié)果得到的葉片Cu含量是準(zhǔn)確的,反演方法是可行的。
[Abstract]:According to the radiation transfer model mechanism of the broadleaved model of leaf optical properties spectraform, the structural parameter N and the absorption coefficient of copper were estimated by using the robust estimation of the primary norm. The Huma area of Heilongjiang Province was selected as the study area. The reflectance spectra of Bai Hua leaves were measured by FieldSpec 3Hi-Res spectrometer of ASD Company in USA, and the copper content of corresponding leaves was measured in laboratory. The improved PROSPECT-Cu model is used to invert the copper content of Bai Hua leaves. The determination coefficient is 0.963 by comparing it with the measured values and inversion values of field samples. The results show that the Cu content of leaves obtained from the inversion results is accurate. The inversion method is feasible.
【作者單位】： 吉林大學(xué)地球探測科學(xué)與技術(shù)學(xué)院;武漢大學(xué)資源與環(huán)境科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金(41372337,41472243) 數(shù)字制圖與國土信息應(yīng)用工程國家測繪地理信息局重點(diǎn)實(shí)驗室開放基金(GCWD201402) 區(qū)域開發(fā)與環(huán)境響應(yīng)湖北省重點(diǎn)實(shí)驗室開放研究基金(2015(B)003)~~
【分類號】：X87
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本文編號：1540367