Zobrazeno 1 - 10
of 32
pro vyhledávání: '"S. Merikallio"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 19, Pp 11117-11132 (2015)
Distributions of ellipsoids are often used to simulate the optical properties of non-ellipsoidal atmospheric particles, such as dust. In this work, the applicability of ellipsoids for retrieving the refractive index of dust-like target model particle
Externí odkaz:
https://doaj.org/article/673ef7b98bdc4c89898b4acaede0f567
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 11, Pp 5347-5363 (2011)
We study the applicability of spheroidal model particles for simulating the single-scattering optical properties of mineral dust aerosols. To assess the range of validity of this model, calculations are compared to laboratory observations for five di
Externí odkaz:
https://doaj.org/article/e7dbda01d6534b24bbc8d44dc013f656
Publikováno v:
Acta Astronautica. 113:22-28
The novel propellantless electric solar wind sail concept promises efficient low thrust transportation in the Solar System outside Earth's magnetosphere. Combined with asteroid mining to provide water and synthetic cryogenic rocket fuel in orbits of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54c863f2dda8488b0be9306ff3505abe
https://doi.org/10.1016/j.actaastro.2015.03.029
https://doi.org/10.1016/j.actaastro.2015.03.029
Autor:
Anu-Maija Sundström, S. Merikallio, Olga Muñoz, Timo H. Virtanen, Timo Nousiainen, Matti Horttanainen, Gerrit de Leeuw
Publikováno v:
Journal of Geophysical Research: Atmospheres. 120:4102-4116
The single-scattering properties of volcanic ash particles are modeled here by using ellipsoidal shapes. Ellipsoids are expected to improve the accuracy of the retrieval of aerosol properties using remote sensing techniques, which are currently often
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de254499aa4acd692b72097cf61181fe
https://doi.org/10.1002/2014jd022792
https://doi.org/10.1002/2014jd022792
Autor:
Pekka Janhunen, S. Merikallio
Publikováno v:
Astrophysics and Space Sciences Transactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f862b9bbeaf59e1be44f84f82c82b938
https://doi.org/10.5194/astra-6-41-2010
https://doi.org/10.5194/astra-6-41-2010
Ellipsoid-based retrievals are widely used for investigating optical properties of non-ellipsoidal atmospheric particles, such as dust. In this work, the applicability of ellipsoids for retrieving the refractive index of dust-like target model partic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f741e2f387f27c99d4a278a5c9fcae49
https://doi.org/10.5194/acpd-15-16861-2015
https://doi.org/10.5194/acpd-15-16861-2015
Publikováno v:
Atmospheric Chemistry and Physics, Vol 15, Iss 19, Pp 11117-11132 (2015)
Distributions of ellipsoids are often used to simulate the optical properties of non-ellipsoidal atmospheric particles, such as dust. In this work, the applicability of ellipsoids for retrieving the refractive index of dust-like target model particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe9d11d390f81a834e8be213a979f2cb
https://aaltodoc.aalto.fi/handle/123456789/107252
https://aaltodoc.aalto.fi/handle/123456789/107252
Autor:
Z. Kozacek, Jean-Pierre Lebreton, D. Klinge, Milan Maksimovic, B. Poirier, Pavel M. Trávníček, Pierre-Louis Blelly, D. Lagoutte, S. Merikallio, Štěpán Štverák, M. Salaquarda
Publikováno v:
Planetary and Space Science
Planetary and Space Science, Elsevier, 2006, 54 (5), pp.472-486. ⟨10.1016/j.pss.2005.10.017⟩
Planetary and Space Science, 2006, 54 (5), pp.472-486. ⟨10.1016/j.pss.2005.10.017⟩
Planetary and Space Science, Elsevier, 2006, 54 (5), pp.472-486. ⟨10.1016/j.pss.2005.10.017⟩
Planetary and Space Science, 2006, 54 (5), pp.472-486. ⟨10.1016/j.pss.2005.10.017⟩
International audience; The DEMETER Langmuir probe experiment, called “Instrument Sonde de Langmuir” (ISL), has been designed for in situ measurements of the bulk parameters of the ionospheric thermal plasma. The ISL instrument is comprised of tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fae7b04aa40dc75940030991644bce9e
https://doi.org/10.1016/j.pss.2005.10.017
https://doi.org/10.1016/j.pss.2005.10.017
Autor:
Mark Paton, S. Merikallio, Giovanni Mengali, Alessandro A. Quarta, Jean-Pierre Lebreton, Pekka Janhunen
Publikováno v:
Planetary and Space Science
Planetary and Space Science, Elsevier, 2014, 104, Part A, pp.141-146. ⟨10.1016/j.pss.2014.08.004⟩
Planetary and Space Science, Elsevier, 2014, 104, Part A, pp.141-146. ⟨10.1016/j.pss.2014.08.004⟩
The electric solar wind sail is a novel propellantless space propulsion concept. According to numerical estimates, the electric solar wind sail can produce a large total impulse per propulsion system mass. Here we consider using a 0.5 N electric sola
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd69d05a8066379c2bd50aea3292f506
https://hal-insu.archives-ouvertes.fr/insu-02885839
https://hal-insu.archives-ouvertes.fr/insu-02885839
Autor:
Claire E. Newman, M. De La Torre-Juarez, S. Merikallio, O. Kemppinen, V. Peinado, Ari-Matti Harri, M. Komu, Javier Martin-Torres, Michael Mischna, Luis Vázquez, Mark I. Richardson, Harri Haukka, Jouni Polkko, Hannu Savijärvi, Mark Paton, Javier Gómez-Elvira, T. Siili, T. Mäkinen, R. Urqui, Walter Schmidt, Nilton O. Renno, Maria Genzer, María Paz Zorzano, S. C. R. Rafkin, J. A. Rodríguez-Manfredi, R. M. Haberle
Publikováno v:
Journal of Geophysical Research. Planets
The Mars Science Laboratory (MSL) made a successful landing at Gale crater early August 2012. MSL has an environmental instrument package called the Rover Environmental Monitoring Station (REMS) as a part of its scientific payload. REMS comprises ins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::41746c2525f28ac94517af702e433b3b
https://pubmed.ncbi.nlm.nih.gov/26213667
https://pubmed.ncbi.nlm.nih.gov/26213667