Kallel, A. and Nilson, T. (2013). Revisiting the
vegetation hot spot modeling: Case of Poisson/Binomial leaf distributions. Remote
Sensing of Environment, 130, 188-204.
Nilson, T., Rautiainen, M., Pisek, J., and Peterson, U.
(2012). Seasonal Reflectance Courses of Forests. In: Dr. Andrew A. Oteng-Amoako
(Ed.), New Advances and Contributions to Forestry Research. InTech,
33-58.
ISBN: 978-953-51-0529-9, Available from:
http://www.intechopen.com/books/new-advances-and-contributions-to-forestry-research/seasonal-reflectance-course-of-forests
Nilson, T., Lang, M., Rautiainen, M., Pisek, J.,
Peterson, U., Kuusk, A., Kuusk, J., and Eenmäe, A. (2012). Time courses of
reflectance for some forest types in Estonia. 1st EARSeL Workshop on
Temporal Analysis of Satellite Images. Mykonos, Greece, May 23-25, 2012,
234-239.
http://www.earsel.org/SIG/timeseries/pdf/proceedings/proceedings_032.pdf
Eenmäe, A., Nilson, T., and Lang, M. (2011).
A note on meteorological variables related trends in the MODIS NPP product for
Estonia. Metsanduslikud Uurimused (Forestry Studies), 55, 60-63.
Kodar, A., Lang, M., Arumäe, T., Pisek, J., Nilson,
T. (2011). Metsa lehepinnaindeksi kaardistamine
lennukilidari, satelliidipiltide ja maapealsete mõõtmiste abil Järvselja VALERI
testalal. Metsanduslikud Uurimused (Forestry Studies), 55, 9-30.
Nilson, T., Kuusk, A., Lang, M., Pisek, J., and Kodar, A.
(2011). Simulation of statistical characteristics of gap distribution in forest
stands. Agricultural and Forest Meteorology, 151(7), 895-905.
Pisek, J., Chen, J.M., and Nilson, T.
(2011). Estimation of vegetation clumping index using MODIS BRDF data. International
Journal of Remote Sensing, 32(9), 2645–2657.
Pisek, J., Lang, M., Nilson, T., Korhonen, L., and Karu, H. (2011).
Comparison of methods for measuring gap size distribution and canopy
nonrandomness at Järvselja RAMI (RAdiation transfer Model Intercomparison) test
sites. Agricultural and Forest Meteorology, 151(3), 365-377.
Kuusk, A., Nilson, T., Kuusk, J., and Lang, M. (2010).
Reflectance spectra of RAMI forest stands in Estonia: Simulations and
measurements. Remote Sensing of Environment, 114(12), 2962-2969.
Ryu, Y., Nilson, T., Kobayashi, H., Sonnentag, O.,
Law, B.E.,
and Baldocchi, D.D. (2010). On the correct estimation of effective leaf
area index: Does it reveal information on clumping effects? Agricultural and
Forest Meteorology, 150(3), 463-472.
Kuusk, A., Kuusk, J., Lang, M., and Nilson, T.
(2010). Reflectance spectra of RAMI stands in Estonia. 2nd Workshop on
Hyperspectral Image and Signal Processing: Evolution in Remote Sensing
(WHISPERS 2010), Reykjavik, Iceland, June 2010. CD-ROM, 4 pp.
Mänd, P, Hallik, L., Peñuelas, J., Nilson, T., Duce,
P., Emmett, B.A., Beier, C., Estiarte, M., Garadnai, J., Kalapos, T., Schmidt,
I.K., Kovács-Láng, E., Prieto, P., Tietema, A., Westerveld, J.W., and Kull, O. (2010)
Responses of the reflectance indices PRI and NDVI to experimental warming and
drought in European shrublands along a north–south climatic gradient. Remote
Sensing of Environment, 114(3), 626-636.
Ryu, Y., Sonnentag, O., Nilson, T., Vargas, R.,
Kobayashi, H., Wenk, R., and Baldocchi, D.D. (2010). How to quantify tree
leaf area index in an open savanna ecosystem: A multi-instrument and multi-model
approach. Agricultural and Forest Meteorology, 150(1), 63-76.
Lang, M., Kuusk, A., Mõttus, M., Rautiainen, M., and Nilson, T.
(2010). Canopy gap fraction estimation from digital hemispherical images using
sky radiance models and a linear conversion method. Agricultural and Forest
Meteorology, 150(1), 20-29.
Hallik, L., Kull, O., Nilson, T., and Peñuelas, J.
(2009). Spectral reflectance of multispecies herbaceous and moss canopies in
the boreal forest understory and open field. Canadian Journal of Remote
Sensing, 35(5), 474-485.
Rautiainen, M., Nilson, T., and Lükk, T. (2009)
Seasonal reflectance trends of hemiboreal birch forests. Remote Sensing of
Environment, 113(4), 805-815.
Nilson,
T., Suviste, S., Lükk, T., and Eenmäe, A. (2008) Seasonal reflectance course of some
forest types in Estonia from a series of Landsat TM and SPOT images and via
simulation. International Journal of Remote Sensing, 29(17-18),
5073–5091.
Rautiainen,
M., Lang, M., Mõttus, M., Kuusk, A., Nilson, T., Kuusk, J., and Lükk, T. (2008) Multi-angular
reflectance properties of a hemiboreal forest: an analysis using CHRIS PROBA
data. Remote Sensing of Environment, 112, 2627-2642.
Kuusk,
A., Nilson, T., Paas, M., Lang, M., and Kuusk, J. (2008) Validation of the forest
radiative transfer model FRT. Remote Sensing of Environment, 112, 51-58.
Suviste,
S., Nilson, T., Lükk, T. and Eenmäe, A. (2007) Seasonal reflectance course of some forest
types in Estonia from multi-year LANDSAT TM and SPOT images and via simulation.
Proceedings of Multi Temp 2007, 18-20 July, Leuven, Belgium, eds: G.J.M.
De Lannoy, R. Hoeben, N.E.C. Verhoest, W.W. Verstraeten, S. Bruneel, P. Coppin,
CD-ROM by Katholike Universitet Leuven, 5 pp.
Lang,
M., Nilson, T., Kuusk, A., Kiviste, A., and Hordo, M. (2007) The performance of
foliage mass and crown radius models in forming the input of a forest
reflectance model: A test on forest growth sample plots and Landsat 7 ETM+
images. Remote Sensing of Environment, 110, 445-457.
Kuusk,
A., Kuusk, J., Lang, M., Lükk, T., and Nilson, T. (2007) Hyperspectral
reflectance of sub-boreal forests measured by CHRIS/PROBA and airborne
spectrometer. Proc. ‘Envisat Symposium 2007’, Montreux, Switzerland 23–27
April 2007, ESA SP-636, July 2007, 6 pp.
Nilson,
T., Lükk, T., Suviste, S., Kadarik, H., and Eenmäe, A. (2007) Calibration of time
series of satellite images to study the seasonal course of forest reflectance. Proc.
Estonian Acad. Sci. Biol. Ecol., 56(1), 5-18.
Nilson, T., Suviste, S., Lükk, T., and Eenmäe, A. (2006) Seasonal reflectance course of some forest types in Estonia as determined from a series of Landsat TM and SPOT images and via simulation. 2nd International Symposium Recent Advances in Quantitative Remote Sensing, 25/29 September 2006,Torrent (Valencia) Spain, Abstract Book, 70-71.
Eriksson,
H.M., Eklundh, L., Kuusk, A., and Nilson, T. (2006) Impact of understory vegetation on
forest canopy reflectance and remotely sensed LAI estimates. Remote Sensing
of Environment 103(4), 408-418.
Rautiainen,
M., Stenberg, P. and Nilson, T. 2005. Estimating canopy cover in Scots pine stands.
Silva Fennica, 39 (1):137-142.
Kuusk,
A., Lang, M., and Nilson, T. 2004. Simulation of the reflectance of ground
vegetation in sub-boreal forests, Agricultural and Forest Meteorology,
126(1-2): 33-46.
Nilson, T. and Kuusk, A. 2004. Improved algorithm
for estimating canopy indices from gap fraction data in forest canopies. Agricultural
and Forest Meteorology, 124:157-169.
Pinty, B., Widlowski, J.-L., Taberner, M., Gobron,
N., Verstraete, M. M., Disney, M., Gascon, F., Gastellu, J.-P., Jiang, L.,
Kuusk, A., Lewis, P., Li, X., Ni-Meister, W., Nilson, T., North, P., Qin, W., Su, L., Tang, S.,
Thompson, R., Verhoef, W., Wang, H., Wang, J., Yan, G., and Zang, H. 2004. Radiation Transfer Model
Intercomparison (RAMI) exercise: Results from the second phase, J. Geophys.
Res., 109(D6): D06210 10.1029/2003JD004252 25 March 2004.
Rautiainen, M., Stenberg,
P., Nilson, T., and Kuusk, A. 2004. The effect of crown shape on the reflectance
of coniferous stands, Remote Sensing of Environment, 89(1):
41-52.
Nilson, T., Kuusk, A., Lang,
M., and Lükk, T. 2003. Forest reflectance modeling: Theoretical aspects and
applications, Ambio, 32(8):535-541.
Stenberg, P., Nilson, T.,
Smolander, H., and Voipio, P. 2003. Gap fraction based estimation of LAI in Scots
pine stands subjected to experimental removal of branches and stems, Canadian
Journal of Remote Sensing, 29(3):363-370.
Rautiainen, M., Stenberg, P., Nilson, T. Kuusk, A., and Smolander, H. 2003. Application of a forest reflectance model in estimating leaf area of
Scots pine stands using Landsat-7 ETM reflectance data, Canadian Journal of
Remote Sensing, 29(3): 314-323.