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題名：評估臺灣常綠闊葉森林之衛星影像植生指標與空載光達穿透率之相關性
書刊名：航測及遙測學刊
作者：李崇誠／王驥魁／洪子敏／吳坤真
作者(外文)：Lee, Chung-cheng／Wang, Chi-kuei／Hong, Tzu-min／Wu, Kun-jen
出版日期：2016
卷期：20:4
頁次：頁251-262
主題關鍵詞：空載光達；森林穿透率；大氣糾正；衛星影像植生指標；Airborne LiDAR；Laser penetration index of forest；Atmospheric correction；Satellite-derived vegetation index
原始連結：連回原系統網址new window
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由於空載光達系統其雷射光會穿透森林樹冠層到達地表，植生的密度會影響到穿透率程度之大小，而穿透率的推估方式為統計雷射光穿透森林冠層到達地面之比率，故穿透率越高所獲得的地面點相對增 加，對於DEM產製有高度的影響，然穿透率屬於執行飛航任務事後獲得的資訊，本研究目的探討衛星影像植生指標與空載光達穿透率之關係，主要目的為提供光達掃瞄規劃之參考，在森林植生覆蓋度高的區域，可以增加入射森林之雷射光能量的方式來提升穿透率。本研究總共測試台灣南北兩個光達樣區，分別為北部金山的火山樣區與南部曾文水庫樣區，掃瞄面積分別為36km2與21km2，並取得Fomosat-2、SPOT-5、Worldview-2與GeoEye共7幅衛星影像，分別計算4種植生指標(NDVI、RVI、PVI與SAVI)，拍攝時間與空載光達掃瞄時間相近，結果顯示衛星影像需經過大氣糾正處理消除水氣和地形之影響因子， 並以Pearson相關性檢定其植生指標與穿透率之相關，結果為兩指數有顯著負相關性，表示當穿透率越高時植生指標相對減少，並以線性回歸探討兩者之關係，其R2值均高於0.8以上，代表衛星影像植生指標與空載光達穿透率有程度上之相關。
The forest canopy affects the laser penetration rate of airborne LiDAR system (ALS). The denser the forest canopy, the higher the laser penetration rate, and vice versa. For an ALS survey project, with the goal to acquire sufficient ground surface points, the flight planning should be conducted according to the distribution forest canopy thickness. The information of forest canopy can be easily accessed via the satellite-derived vegetation index. In this study, we examined the correction relationship between the satellite-derived vegetation index and laser penetration index (LPI). The study area was 21 km2 located in Tseng-Wen Reservoir and 36 km2 located in Jin-Shan volcanic region. The ALS data were collected with an Optech HD400 instrument. The LPI is the ratio between the total number of laser pulses reaching at the ground surface and the total number of transmitted laser pulses. The vegetation indices were calculated from Formsat-2, SPOT-5, WorldView2 and GeoEye, all of which were acquired near the time of ALS data acquisition. This study calculated four vegetation indices, i.e., NDVI, RVI, PVI, and SAVI. The effect of atmospheric correction (conducted by ATCOR-3) were also discussed. The results show high linear correlation between LPI and LAI.
期刊論文
1.Zhao, Kaiguang、Popescu, Sorin(2009)。Lidar-based mapping of leaf area index and its use for validating GLOBCARBON satellite LAI product in a temperate forest of the southern USA。Remote Sensing of Environment，113(8)，1628-1645。  new window
2.Wu, S. T.、Hsieh, Y. T.、Chen, C. T.、Chen, J. C.(2014)。A Comparison of 4 Shadow Compensation Techniques for Land Cover Classification of Shaded Areas from High Radiometric Resolution Aerial Images。Canadian Journal of Remote Sensing，40(4)，315-326。  new window
3.黃清美、史天元(20080300)。雷射入射角與空載光達穿透率關係探討。航測及遙測學刊，13(1)，67-73。new window  延伸查詢new window
4.Næsset, Erik(2009)。Effects of different sensors, flying altitudes, and pulse repetition frequencies on forest canopy metrics and biophysical stand properties from small-footprint airborne laser data。Remote Sensing of Environment，113(1)，148-159。  new window
5.Morsdorf, F.、Frey, O.、Meier, E.、Itten, K. I.、Allgöwe, B.(2008)。Assessment of influence of flying altitude and scan angle on biophysical vegetation products derived from airborne laser scanning。International Journal of Remote Sensing，29(5)，1387-1406。  new window
6.李崇誠、邱珮榕、王驥魁(20141100)。比較各種空載光達儀器與飛航參數對於森林穿透率影響。航測及遙測學刊，19(1)，63-73。new window  延伸查詢new window
7.蔡光榮、陳建富(20050600)。遙測技術應用於臺灣中部集集地震災區崩塌地植生處理工程之植生指數評估。航測及遙測學刊，10(2)，203-212。new window  延伸查詢new window
8.魏浚紘、吳守從、黃冠理、陳朝圳、陳建璋(20120600)。以空載光達資料推估柳杉人工林地上部生物量。國立臺灣大學生物資源暨農學院實驗林研究報告，26(2)=276，113-123。  延伸查詢new window
9.Chasmer, L.、Hopkinson, C.、Smith, B.、Treitz, P.(2006)。Examining the influence of changing laser pulse repetition frequencies on conifer forest canopy returns。Photogrammetric Engineering and Remote Sensing，72(12)，1359-1367。  new window
10.Chu, H. J.、Wang, C. K.、Huang, M. L.、Lee, C. C.、Liu, C. Y.、Lin, C. C.(2014)。Effect of point density and interpolation of LiDAR-derived high-resolution DEMs on landscape scarp identification。GIScience & Remote Sensing，51(6)，731-747。  new window
11.Gaveau, D. L. A.、Hill, R. A.(2003)。Quantifying canopy height underestimation by laser pulse penetration in small-footprint airborne laser scanning data。Canadian Journal of Remote Sensing，29(5)，650-657。  new window
12.Jin, Y. X.、Yang, X. C.、Qiu, J. J.、Li, J. Y.、Gao, T.、Wu, Q.、Xu, B.(2014)。Remote sensing-based biomass estimation and its spatio-temporal variations in temperate grassland, Northern China。Remote Sensing，6(2)，1496-1513。  new window
13.MacArthur, R. H.、Horn, H. S.(1969)。Foliage profile by vertical measurements。Ecology，50(5)，802-804。  new window
14.Mannschatz, T.、Pflug, B.、Borg, E.、Feger, K. H.、Dietrich, P.(2014)。Uncertainties of LAI estimation from satellite imaging due to atmospheric correction。Remote Sensing of Environment，153，24-39。  new window
15.Richardson, A. J.、Wiegand, C. L.(1977)。Distinguishing vegetation from soil background information。Photogrammetric Engineering and Remote Sensing，43，1541-1552。  new window
16.Huete, A. R.(1988)。A soil-adjusted vegetation index (SAVI)。Remote Sensing of Environment，25(3)，295-309。  new window
會議論文
1.Barilotti, A.、Turco, S.、Alberti, G.(2006)。LAI determination in forestry ecosystem by LiDAR data analysis。The Workshop of 3D Remote Sensing in Forestry。Vienna。  new window
2.Hopkinson, C.、Chasmer, L. E.(2007)。Modeling canopy gap fraction from lidar intensity。ISPRS Workshop on Laser Scanning 2007 and SilviLaser 2007。Espoo。  new window
3.Pearson, R. L.、Miller, L. D.(1972)。Remote mapping of standing crop biomass for estimation of the productivity of the short-grass Prairie, Pawnee National Grassland, Colorado。The 8th International Symposium on Remote Sensing of Environment。  new window
研究報告
1.Rouse, J. W.、Haas, R. H.、Schell, J. A.、Deering, D. W.、Harlan, J. C.(1974)。Monitoring the vernal advancement of retrogradation of natural vegetation。Greenbelt, MD。  new window
學位論文
1.黃清美(2007)。空載光達點雲穿透率探討(碩士論文)。國立交通大學。  延伸查詢new window
2.林莉萍(2013)。應用空載光達資料估計森林樹冠高度模型及葉面積指數(碩士論文)。國立成功大學。  延伸查詢new window
圖書
1.Lillesand, T. M.、Kiefer, R. W.(1987)。Remote Sensing and Image Interpretation。John Wiley and Sons。  new window
2.Richter, R.、Schlaepfer, D.(2011)。Atmospheric/topographic correction for satellite imagery, ATCOR-2/3 User Guide。DLR-German Aerospace Center, Remote Sensing Data Center。  new window
 
 
 
 
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