H
Hannakaisa Lindqvist
Researcher at Finnish Meteorological Institute
Publications - 51
Citations - 1331
Hannakaisa Lindqvist is an academic researcher from Finnish Meteorological Institute. The author has contributed to research in topics: Light scattering & Scattering. The author has an hindex of 19, co-authored 48 publications receiving 1025 citations. Previous affiliations of Hannakaisa Lindqvist include University of Helsinki & Colorado State University.
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Improved retrievals of carbon dioxide from Orbiting Carbon Observatory-2 with the version 8 ACOS algorithm
Christopher W. O'Dell,Annmarie Eldering,Paul O. Wennberg,David Crisp,Michael R. Gunson,Brendan Fisher,Christian Frankenberg,Matthäus Kiel,Hannakaisa Lindqvist,Lukas Mandrake,Aronne Merrelli,Vijay Natraj,R. R. Nelson,Gregory B. Osterman,Vivienne H. Payne,Thomas E. Taylor,Debra Wunch,Brian J. Drouin,Fabiano Oyafuso,Albert Y. Chang,James McDuffie,Mike Smyth,David Baker,Sourish Basu,Sourish Basu,Frédéric Chevallier,Sean Crowell,Liang Feng,Paul I. Palmer,M. K. Dubey,Omaira García,David W. T. Griffith,Frank Hase,Laura T. Iraci,Rigel Kivi,Isamu Morino,Justus Notholt,Hirofumi Ohyama,Christof Petri,Coleen M. Roehl,Mahesh Kumar Sha,Kimberly Strong,Ralf Sussmann,Yao Té,Osamu Uchino,Voltaire A. Velazco +45 more
TL;DR: The Atmospheric Carbon Observations from Space (ACOS) algorithm has been applied to greenhouse gas observations from the GOSAT satellite since 2009, with modifications necessary for OCO-2.
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Optical properties of light absorbing carbon aggregates mixed with sulfate: assessment of different model geometries for climate forcing calculations
TL;DR: Light scattering by light absorbing carbon aggregates encapsulated into sulfate shells is computed by use of the discrete dipole method and an extended model based on a core-shell-shell geometry is proposed and tested.
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Modelling light scattering by mineral dust using spheroids : assessment of applicability
TL;DR: In this paper, the applicability of spheroidal model particles for simulating the single-scattering optical properties of mineral dust aerosols was investigated, and best results were obtained with a power-law shape distribution with an exponent around three.
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Single scattering by realistic, inhomogeneous mineral dust particles with stereogrammetric shapes
Hannakaisa Lindqvist,Olli Jokinen,Konrad Kandler,Dirk Scheuvens,Timo Nousiainen,Timo Nousiainen +5 more
TL;DR: In this paper, the authors demonstrate the use of the stereogrammetric shape retrieval method in the context of single-scattering modelling of mineral dust for four different dust types, ranging from compact, equidimensional shapes to very elongated and aggregate shapes.
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Can particle shape information be retrieved from light-scattering observations using spheroidal model particles?
TL;DR: In this article, a simple nonspherical particle model based on homogeneous spheroids was used to retrieve shape information of complex particles with observations of scattered intensity and polarisation.