Foto på Petri Pellikka
  • PL 64 (Gustaf Hällströmin katu 2)

    00014

    Finland

  • Finland

  • Viikinkaari 1, Biocentre 3

    00790 Helsinki

    Finland

1993 …2022
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Publikationer 1993 2020

2020
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Mapping forest structural heterogeneity of tropical montane forest remnants from airborne laser scanning and Landsat time series

Adhikari, H., Valbuena, R., Pellikka, P. & Heiskanen, J., jan 2020, I : Ecological Indicators. 108, 105739.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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2019

Auxiliary datasets improve accuracy of object-based land use/land cover classification in heterogeneous savanna landscapes

Hurskainen, P., Adhikari, H., Siljander, M., Pellikka, P. & Hemp, A., 3 sep 2019, I : Remote Sensing of Environment. 233, 111354, 17 s., 111354.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Detection of the dispersion and residence of volcanic SO2⁠ and sulfate aerosol from Nabro in 2011

Liu, Y., Pellikka, P., Li, H. & Fang, X., 15 jan 2019, I : Atmospheric Environment. 197, s. 36-44 9 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Patch aggregation trends of the global climate landscape under future global warming scenario

Lu, H., Guan, Y., He, L., Adhikari, H., Pellikka, P., Heiskanen, J. & Maeda, E., 14 okt 2019, I : International Journal of Climatology. s. 1-12 12 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Reflectance variation in boreal landscape during the snow melting period using airborne imaging spectroscopy

Heinilä, A. M. K., Salminen, M., Metsämäki, S., Pellikka, P. K. E., Koponen, S. & Pulliainen, J., apr 2019, I : International Journal of Applied Earth Observation and Geoinformation. 76, s. 66-76 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Relationship between carbon stocks and tree species diversity in a humid Guinean savanna landscape in northern Sierra Leone

Amara, E., Heiskanen, J., Aynekulu, E. & Pellikka, P. K. E., 3 apr 2019, I : Southern Forests. 81, 3, 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Snow line elevation variability under the effect of climate variations in the Zagros Mountains: case study of Oshtorankooh

Ghadimi, M., Moghbel, M., Gholamnia, M. & Pellikka, P., jun 2019, I : Environmental Earth Sciences. 78, 12, 12 s., 348.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Spatio-temporal analysis of vegetation dynamics as response to climate variability and drought patterns in the semiarid region, Eritrea

Measho, S., Chen, B., Trisurat, Y., Pellikka, P., Guo, L., Arunyawat, S., Tuankrua, V., Ogbazghi, W. & Yemane, T., 26 mar 2019, I : Remote Sensing. 11, 6, 23 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Termite mound architecture regulates nest temperature and correlates with species identities of symbiotic fungi.

Vesala, R., Harjuntausta, A., Hakkarainen, A., Rönnholm, P., Pellikka, P. & Rikkinen, J., 16 jan 2019, I : PeerJ. 6, 20 s., 6237.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Web map application to support spatial planning, decision-making and transition towards climate-smart landscapes in the Taita Hills, Kenya

Johansson, T. P., Heiskanen, J., Siljander, M. & Pellikka, P. K. E., 17 jan 2019, Geospatial Challenges in the 21st Century. Koutsopoulos, K., de Miguel Gonzales, R. & Donert, K. (red.). Springer, Cham, s. 173-187

Forskningsoutput: Kapitel i bok/rapport/konferenshandlingKapitelVetenskapligPeer review

2018

A call for viewshed ecology: Advancing our understanding of the ecology of information through viewshed analysis

Aben, J., Pellikka, P. & Travis, J. M. J., mar 2018, I : Methods in Ecology and Evolution. 9, 3, s. 624-633 10 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

A robust leaf area index algorithm accounting for the expected errors in gap fraction observations

Gonsamo, A., Walter, J-M., Chen, J. M., Pellikka, P. & Schleppi, P., 15 jan 2018, I : Agricultural and Forest Meteorology. 248, s. 197-204 8 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Comparison and Prediction of the above Ground Carbon Storage in Croplands on the Inhabited Slopes on Mount Kilimanjaro (Tanzania) and the Taita Hills (Kenya)

Odeny, D., Karanja, F., Mwachala, G., Pellikka, P. & Marchant, R., aug 2018, I : Journal of Geographic Information System . 10, s. 415-438 23 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Effects of Crop Leaf Angle on LAI-Sensitive Narrow-Band Vegetation Indices Derived from Imaging Spectroscopy

Zou, X., Haikarainen, I., Haikarainen, I. P., Mäkelä, P., Mõttus, M. & Pellikka, P., sep 2018, I : Applied sciences. 8, 9, 17 s., 1435.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Impact of land cover change on aboveground carbon stocks in Afromontane landscape in Kenya

Pellikka, P. K. E., Heikinheimo, V., Hietanen, J., Schäfer, E., Siljander, M. & Heiskanen, J., maj 2018, I : Applied Geography. 94, s. 178-189 12 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Invasive tree species detection in the Eastern Arc Mountains biodiversity hotspot using one class classification

Piiroinen, R., Fassnacht, F. E., Heiskanen, J., Maeda, E., Mack, B. & Pellikka, P., 1 dec 2018, I : Remote Sensing of Environment. 218, s. 119-131 13 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Recruiting Conventional Tree Architecture Models into State-of-the-Art LiDAR Mapping for Investigating Tree Growth Habits in Structure

Lin, Y., Jiang, M., Pellikka, P. & Heiskanen, J., 20 feb 2018, I : Frontiers in plant science. 9, 220, 13 s., 220.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Similarity in Fog and Rainfall Intermittency

Räsänen, M., Chung, M., Katurji, M., Pellikka, P., Rinne, J. & Katul, G. G., 16 okt 2018, I : Geophysical Research Letters. 45, 19, s. 10691-10699 9 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Tropical forest canopies and their relationships with climate and disturbance: results from a global dataset of consistent field-based measurements

Pfeifer, M., Gonsamo, A., Woodgate, W., Cayuela, L., Marshall, A. R., Ledo, A., Paine, T. C. E., Marchant, R., Burt, A., Calders, K., Courtney-Mustaphi, C., Cuni-Sanchez, A., Deere, N. J., Denu, D., de Tanago, J. G., Hayward, R., Lau, A., Macia, M. J., Olivier, P. I., Pellikka, P. & 9 andraSeki, H., Shirima, D., Trevithick, R., Wedeux, B., Wheeler, C., Munishi, P. K. T., Martin, T., Mustari, A. & Platts, P. J., 8 jan 2018, I : Forest Ecosystems. 5, 14 s., 7.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Tropical stream diatom communities – the importance of headwater streams for regional diversity

Jyrkänkallio-Mikkola, J., Siljander, M., Heikinheimo, V., Pellikka, P. & Soininen, J., 2018, I : Ecological Indicators. 95, 1, s. 183-193 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

2017

Calibration and validation of hyperspectral imagery using a permanent test field

Markelin, L., Honkavaara, E., Takala, T. & Pellikka, P., 2017, 2013 5th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS) . IEEE, (Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing).

Forskningsoutput: Kapitel i bok/rapport/konferenshandlingKonferensbidragVetenskapligPeer review

Classification of Tree Species in a Diverse African Agroforestry Landscape Using Imaging Spectroscopy and Laser Scanning

Piiroinen, R., Heiskanen, J., Maeda, E., Viinikka, A. & Pellikka, P., 23 aug 2017, I : Remote Sensing. 9, 9, 20 s., 875.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Coffee Shade Tree Management: An Adaptation Option for Climate Change Impact for Small Scale Coffee Growers in South-West Ethiopia

Garedew, W., Tesfaw Hailu, B., Lemessa, F., Pellikka, P. & Pinard, F., 2017, Climate Change Adaptation in Africa : Fostering Resilience and Capacity to Adapt. Leal Filho, W., Simane, B., Kalangu, J., Munishi, P. & Musiyiwa, K. (red.). Cham: Springer International Publishing AG, s. 647-659 13 s. (Climate Change Management).

Forskningsoutput: Kapitel i bok/rapport/konferenshandlingKapitelVetenskapligPeer review

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Determinants of Aboveground Biomass across an Afromontane Landscape Mosaic in Kenya

Adhikari, H., Heiskanen, J., Siljander, M., Maeda, E., Heikinheimo, V. & Pellikka, P. K. E., 11 aug 2017, I : Remote Sensing. 9, 8, 19 s., 827.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Diversity of fungus-growing termites (Macrotermes) and their fungal symbionts (Termitomyces) in the semiarid Tsavo Ecosystem, Kenya.

Vesala, R., Niskanen, T., Liimatainen, K., Boga, H., Pellikka, P. & Rikkinen, J., maj 2017, I : Biotropica. 49, 3, s. 402-412 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Experimental transplants reveal strong environmental effects on the growth of non-vascular epiphytes in Afromontane Forests

Stam, Å. C. S., Enroth, J., Malombe, I., Pellikka, P. K. E. & Rikkinen, J. K., nov 2017, I : Biotropica. 49, 6, s. 862–870 BTP12472.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Mapping Meaning: Critical Cartographies for Participatory Water Management in Taita Hills, Kenya

Hohenthal, J. M., Minoia, P. & Pellikka, P. K. E., 2017, I : Professional Geographer. 69, 3, s. 383-395 13 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Remote sensing approach for spatial planning of land management interventions in West African savannas

Heiskanen, J., Liu, J., Valbuena, R., Aynekulu, E., Packalen, P. & Pellikka, P., 2017, I : Journal of Arid Environments. 140, s. 29-41 13 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Testing the Potential Application of Simulated Multispectral Data in Discriminating Tree Species in Taita Hills

Nthuni, S., Karanja, F., Pellikka, P. K. E. & Siljander, M., 2017, I : Journal of Geosciences and Geomatics. 5, 5, s. 243-250 8 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Zealandia pyrkii mannerten joukkoon, vaikka on melkein kokonaan meren alla

Pellikka, P. K. E., 21 mar 2017, I : Helsingin Sanomat. 2017, s. B8-B9 2 s.

Forskningsoutput: TidskriftsbidragArtikelAllmänheten

2016

Land Cover Characterization in West Sudanian Savannas Using Seasonal Features from Annual Landsat Time Series

Liu, J., Heiskanen, J., Aynekulu, E., Maeda, E. E. & Pellikka, P. K. E., 28 apr 2016, I : Remote Sensing. 8, 5, s. 365 18 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Mapping tree species diversity of a tropical montane forest by unsupervised clustering of airborne imaging spectroscopy data

Schäfer, E. A., Heiskanen, J. H., Heikinheimo, V. V. & Pellikka, P. K. E., 2016, I : Ecological Indicators. 64, s. 49-58 10 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Remote sensing of the decrease of juniper woodlands in the mountains of Southwestern Saudi Arabia-reasons and consequences

Pellikka, P. & Alshaikh, A. Y., maj 2016, I : Arabian Journal of Geosciences. 9, 6, 12 s., 457.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

The importance of realistic dispersal models in conservation planning: application of a novel modelling platform to evaluate management scenarios in an Afrotropical biodiversity hotspot

Aben, J., Bocedi, G., Palmer, S. C. F., Pellikka, P., Strubbe, D., Hallmann, C., Travis, J. M. J., Lens, L. & Matthysen, E., aug 2016, I : Journal of Applied Ecology. 53, 4, s. 1055-1065 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Viisauden vuorilla

Pellikka, P. K. E., 2016, I : Yliopisto : Helsingin yliopiston tiedelehti. 2016, 2, s. 34-37 4 s.

Forskningsoutput: TidskriftsbidragArtikelAllmänheten

2015

Application of hyperspectral remote sensing for flower mapping in African savannas

Landmann, T., Piiroinen, R., Makori, D. M., Abdel-Rahman, E. M., Makau, S., Pellikka, P. & Raina, S. K., 2015, I : Remote Sensing of Environment. 166, s. 50 - 60 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Community and institutional perspectives on water management and environmental changes in the Taita Hills, Kenya

Hohenthal, J. M., Räsänen, M., Owidi, E., Andersson, B., Minoia, P. & Pellikka, P. K. E., 2015, Helsinki: University of Helsinki. 63 s. (Department of Geosciences and Geography ; vol. C11)

Forskningsoutput: Bok/rapportBeställd rapportProfessionell

Comparison of field and airborne laser scanning based crown cover estimates across land cover types in Kenya

Heiskanen, J., Korhonen, L., Hietanen, J., Heikinheimo, V. V., Schäfer, E. & Pellikka, P. K. E., 2015, I : The international archives of the photogrammetry, remote sensing and spatial information sciences. Volume XL-7/W3, s. 409-415 7 s.

Forskningsoutput: TidskriftsbidragKonferensartikelVetenskapligPeer review