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NTIS 바로가기대한원격탐사학회지 = Korean journal of remote sensing, v.33 no.5 pt.1, 2017년, pp.571 - 585
이화선 (인하대학교 공간정보공학과) , 이규성 (인하대학교 공간정보공학과)
The number of spaceborne optical sensors including red-edge band has been increasing since red-edge band is known to be effective to enhance the information content on biophysical characteristics of vegetation. Considering that the Agriculture and Forestry Satellite is planning to carry an imaging s...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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LAI 추정에 원격탐사 기술을 활용한 두 가지 방식은 각각 무엇인가? | , 2002). 원격탐사기술을 이용한 LAI 추정은 현지에서 측정된 LAI값과 영상신호값(밴드 반사율, 분광지수 등)사이의 관계식을 이용하는 실험적 방식(Curran et al., 1992; Peddle et al., 1999)과 식물 엽층에서 전자기에너지의 반사모형을 이용한 이론적인 추정 방식(Kuusk, 1998)으로 나눌 수 있다. 국내에서도 산림이나 농지의 LAI분포지도 제작을 위하여 다양한 위성영상자료를 이용한 실험적 관계식을 도출한 사례가 있다(Lee et al. | |
엽면적지수란 무엇인가? | 엽면적지수(leaf area index: LAI)는 단위면적당 엽면적의 합을 비율로 나타낸 지수로써 농업, 임업, 생태학, 수문학 및 기상학에서 사용되는 중요한 생물리적 변수다. 현지에서 LAI의 측정은 많은 인력과 비용을 요구하며, 더 나아가 산림의 경우 직접적인 측정은 거의 불가능한 경우가 대부분이다. | |
정규식생지수를 LAI 측정에 활용하는 것의 한계는? | 정규식생지수(normalized difference vegetation index: NDVI)는 일반적으로 식물의 엽량과 비례하는 것으로 알려져 있으며, 당연히 LAI 추정에 가장 널리 사용되어 왔다. 그러나 NDVI를 이용한 LAI 추정은 대부분 농지, 초원, 건조지역 산림 등 식물의 피복율이 비교적 낮은 식생지역에서 효과적이며, LAI가 일정 수준 이상인 울폐도가 높은 식생지역에서는 NDVI와의 관계성이 떨어진다고 알려졌다(Turner et al., 1999). |
Adelabu, S., O. Mutanga, and E. Adam, 2014. Evaluating the impact of red-edge band from Rapideye image for classifying insect defoliation levels, ISPRS Journal of Photogrammetry and Remote Sensing, 95(2014): 34-41.
Baret, F., S. Jacquemoud, G. Guyot, and C. Leprieur, 1992. Modeled analysis of the biophysical nature of spectral shifts and comparison with information content of broad bands, Remote Sensing of Environment, 41(2-3): 133-142.
Carlson, T.N. and D.A. Ripley, 1997. On the relation between NDVI, fractional vegetation cover, and leaf area index, Remote Sensing of Environment, 62(3): 241-252.
Cho, M.A. and A.K. Skidmore, 2006. A new technique for extracting the red edge position from hyperspectral data: The linear extrapolation method, Remote Sensing of Environment, 101(2): 181-193.
Clevers, J.G. and A.A. Gitelson, 2013. Remote estimation of crop and grass chlorophyll and nitrogen content using red-edge bands on Sentinel-2 and-3, International Journal of Applied Earth Observation and Geoinformation, 23(2013): 344-351.
Clevers, J.G., L. Kooistra, and M.M.M. van den Brande, 2017. Using Sentinel-2 Data for Retrieving LAI and Leaf and Canopy Chlorophyll Content of a Potato Crop, Remote Sensing, 9(5): 405.
Curran, P.J., J.L. Dungan, and H.L. Gholz, 1992. Seasonal LAI in slash pine estimated with Landsat TM, Remote Sensing of Environment, 39(1): 3-13.
Dash, J. and P. Curran, 2007. Evaluation of the MERIS terrestrial chlorophyll index (MTCI), Advances in Space Research, 39(1): 100-104.
Dawson, T. and P. Curran, 1998. Technical note A new technique for interpolating the reflectance red edge position, International Journal of Remote Sensing, 19(11): 2133-2139.
Delegido, J., J. Verrelst, C. Meza, J. Rivera, L. Alonso, and J. Moreno, 2013. A red-edge spectral index for remote sensing estimation of green LAI over agroecosystems, European Journal of Agronomy, 46(2013): 42-52.
Dube, T., O. Mutanga, M. Sibanda, C. Shoko, and A. Chemura, 2017. Evaluating the influence of the Red Edge band from RapidEye sensor in quantifying leaf area index for hydrological applications specifically focussing on plant canopy interception, Physics and Chemistry of the Earth, Parts A/B/C, 100(2017): 73-80.
Eitel, J.U., L.A. Vierling, M.E. Litvak, D.S. Long, U. Schulthess, A.A. Ager, D.J. Krofcheck, and L. Stoscheck, 2011. Broadband, red-edge information from satellites improves early stress detection in a New Mexico conifer woodland, Remote Sensing of Environment, 115(12): 3640-3646.
Elvidge, C.D. and Z. Chen, 1995. Comparison of broadband and narrow-band red and near-infrared vegetation indices, Remote Sensing of Environment, 54(1): 38-48.
Gitelson, A.A., Y. Gritz, and M.N. Merzlyak, 2003. Relationships between leaf chlorophyll content and spectral reflectance and algorithms for nondestructive chlorophyll assessment in higher plant leaves, Journal of Plant Physiology, 160(3): 271-282.
Gitelson, A.A., 2004. Wide dynamic range vegetation index for remote quantification of biophysical characteristics of vegetation, Journal of Plant Physiology, 161(2): 165-173.
Haboudane, D., J.R. Miller, E. Pattey, P.J. Zarco-Tejada, and I.B. Strachan, 2004. Hyperspectral vegetation indices and novel algorithms for predicting green LAI of crop canopies: Modeling and validation in the context of precision agriculture, Remote Sensing of Environment, 90(3): 337-352.
Herrmann, I., A. Pimstein, A. Karnieli, Y. Cohen, V. Alchanatis, and D. Bonfil, 2011. LAI assessment of wheat and potato crops by VEN ${\mu}$ S and Sentinel-2 bands, Remote Sensing of Environment, 115(8): 2141-2151.
Horler, D., J. Barber, and A. Barringer, 1980. Effects of heavy metals on the absorbance and reflectance spectra of plants, International Journal of Remote Sensing, 1(2): 121-136.
Immitzer, M., F. Vuolo, and C. Atzberger, 2016. First experience with Sentinel-2 data for crop and tree species classifications in central Europe, Remote Sensing, 8(3): 166.
Korhonen, L., P. Packalen, and M. Rautiainen, 2017. Comparison of Sentinel-2 and Landsat 8 in the estimation of boreal forest canopy cover and leaf area index, Remote Sensing of Environment, 195(2017): 259-274.
Kross, A., H. McNairn, D. Lapen, M. Sunohara, and C. Champagne, 2015. Assessment of RapidEye vegetation indices for estimation of leaf area index and biomass in corn and soybean crops, International Journal of Applied Earth Observation and Geoinformation, 34(2015): 235-248.
Kuusk, A., 1998. Monitoring of vegetation parameters on large areas by the inversion of a canopy reflectance model, International Journal of Remote Sensing, 19(15): 2893-2905.
Lee, K., W.B. Cohen, R.E. Kennedy, T.K. Maiersperger, and S.T. Gower, 2004. Hyperspectral versus multispectral data for estimating leaf area index in four different biomes, Remote Sensing of Environment, 91(3): 508-520.
Mutanga, O., E. Adam, and M.A. Cho, 2012. High density biomass estimation for wetland vegetation using WorldView-2 imagery and random forest regression algorithm, International Journal of Applied Earth Observation and Geoinformation, 18(2012): 399-406.
Myneni, R.B., S. Hoffman, Y. Knyazikhin, J. Privette, J. Glassy, Y. Tian, Y. Wang, X. Song, Y. Zhang, and G. Smith, 2002. Global products of vegetation leaf area and fraction absorbed PAR from year one of MODIS data, Remote Sensing of Environment, 83(1): 214-231.
Peddle, D.R., F.G. Hall, and E.F. LeDrew, 1999. Spectral mixture analysis and geometric-optical reflectance modeling of boreal forest biophysical structure, Remote Sensing of Environment, 67(3): 288-297.
Pu, R., P. Gong, G.S. Biging, and M.R. Larrieu, 2003. Extraction of red edge optical parameters from Hyperion data for estimation of forest leaf area index, IEEE Transactions on Geoscience and Remote Sensing, 41(4): 916-921.
Ramoelo, A., A.K. Skidmore, M.A. Cho, M. Schlerf, R. Mathieu, and I.M. Heitkonig, 2012. Regional estimation of savanna grass nitrogen using the red-edge band of the spaceborne RapidEye sensor, International Journal of Applied Earth Observation and Geoinformation, 19(2012): 151-162.
Schuster, C., M. Forster, and B. Kleinschmit, 2012. Testing the red edge channel for improving land-use classifications based on high-resolution multi-spectral satellite data, International Journal of Remote Sensing, 33(17): 5583-5599.
Shin, J. and K. Lee, 2010. Relationship analysis between leaf area index and spectral reflectance under full canopy coverage situation, Proc. of 2010 the Korean Society of Remote Sensing Conference, Incheon, KOREA, Mar. 26, vol. 13, pp. 22-27 (in Korean).
Sibanda, M., O. Mutanga, and M. Rouget, 2015. Examining the potential of Sentinel-2 MSI spectral resolution in quantifying above ground biomass across different fertilizer treatments, ISPRS Journal of Photogrammetry and Remote Sensing, 110(2015): 55-65.
Sibanda, M., O. Mutanga, M. Rouget, and L. Kumar, 2017a. Estimating Biomass of Native Grass Grown under Complex Management Treatments Using WorldView-3 Spectral Derivatives, Remote Sensing, 9(1): 55.
Sibanda, M., O. Mutanga, and M. Rouget, 2017b. Testing the capabilities of the new WorldView-3 space-borne sensor's red-edge spectral band in discriminating and mapping complex grassland management treatments, International Journal of Remote Sensing, 38(1): 1-22.
Thomas, J. and H. Gausman, 1977. Leaf reflectance vs. leaf chlorophyll and carotenoid concentrations for eight crops, Agronomy Journal, 69(5): 799-802.
Turner, D.P., W.B. Cohen, R.E. Kennedy, K.S. Fassnacht, and J.M. Briggs, 1999. Relationships between leaf area index and Landsat TM spectral vegetation indices across three temperate zone sites, Remote Sensing of Environment, 70(1): 52-68.
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