土壤蒸發(fā)和植被蒸騰遙感估算與驗(yàn)證
發(fā)布時(shí)間:2018-06-19 06:00
本文選題:土壤蒸發(fā) + 植被蒸騰; 參考:《遙感學(xué)報(bào)》2017年06期
【摘要】:地表蒸散發(fā)是土壤—植被—大氣系統(tǒng)中能量和水循環(huán)的重要環(huán)節(jié),它包括土壤、水體和植被表面的蒸發(fā),以及植被蒸騰。隨著地表參數(shù)多源遙感產(chǎn)品的快速發(fā)展,利用不同地表參數(shù)遙感產(chǎn)品估算地表蒸散發(fā)以及其組分土壤蒸發(fā)和植被蒸騰成為日常監(jiān)測(cè)越來越便利,監(jiān)測(cè)尺度已從單站擴(kuò)展到田塊、區(qū)域乃至全球。目前地表蒸散發(fā)雙層遙感估算模型按照建模機(jī)理的不同可分為:系列模型、平行模型、基于特征空間的模型、結(jié)合傳統(tǒng)方法的模型以及數(shù)據(jù)同化方法。本文從模型構(gòu)建物理機(jī)制、模型驅(qū)動(dòng)數(shù)據(jù)以及模型輸出結(jié)果驗(yàn)證等方面總結(jié)了上述模型的發(fā)展歷史和現(xiàn)狀,并指出在模型結(jié)構(gòu)與參數(shù)化方案的優(yōu)化、高分辨率模型驅(qū)動(dòng)數(shù)據(jù)的發(fā)展、土壤蒸發(fā)和植被蒸騰像元尺度"地面真值"的獲取等方面都仍需進(jìn)一步完善。
[Abstract]:Surface evapotranspiration is an important part of energy and water cycle in soil-vegetation-atmosphere system. It includes soil, evaporation of water body and vegetation surface, and vegetation transpiration. With the rapid development of multi-source remote sensing products with different surface parameters, the estimation of surface evapotranspiration and its components soil evaporation and vegetation transpiration become more and more convenient, and the monitoring scale has been extended from single station to field. Regional and global. At present, according to the different modeling mechanism, the surface evapotranspiration bilayer remote sensing estimation model can be divided into series model, parallel model, feature space based model, combined with the traditional method model and data assimilation method. In this paper, the development history and present situation of the above models are summarized from the aspects of physical mechanism of model construction, model-driven data and verification of model output results, and the optimization of model structure and parameterization scheme is pointed out. The development of data driven by high resolution model, soil evaporation and the acquisition of "ground truth value" of vegetation transpiration pixel scale still need to be further improved.
【作者單位】: 西南大學(xué)遙感大數(shù)據(jù)應(yīng)用重慶市工程研究中心地理科學(xué)學(xué)院;北京師范大學(xué)地理科學(xué)學(xué)部地表過程與資源生態(tài)國家重點(diǎn)實(shí)驗(yàn)室;邯鄲學(xué)院經(jīng)濟(jì)管理學(xué)院地理系;
【基金】:國家自然科學(xué)基金(編號(hào):41531174) 國家重大科學(xué)研究計(jì)劃課題(編號(hào):2015CB953702) 西南大學(xué)博士基金(含人才引進(jìn)計(jì)劃)項(xiàng)目(編號(hào):SWU11042) 中央高;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金(編號(hào):XDJK2017C004)~~
【分類號(hào)】:Q945;S152.73;TP79
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1 李婷婷;中國黃淮海地區(qū)土壤蒸發(fā)和植被蒸騰的遙感反演[D];天津大學(xué);2014年
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