Zobrazeno 1 - 10
of 168
pro vyhledávání: '"Johanna Tamminen"'
Autor:
Hannakaisa Lindqvist, Ella Kivimäki, Tuomas Häkkilä, Aki Tsuruta, Oliver Schneising, Michael Buchwitz, Alba Lorente, Mari Martinez Velarte, Tobias Borsdorff, Carlos Alberti, Leif Backman, Matthias Buschmann, Huilin Chen, Darko Dubravica, Frank Hase, Pauli Heikkinen, Tomi Karppinen, Rigel Kivi, Erin McGee, Justus Notholt, Kimmo Rautiainen, Sébastien Roche, William Simpson, Kimberly Strong, Qiansi Tu, Debra Wunch, Tuula Aalto, Johanna Tamminen
Publikováno v:
Remote Sensing, Vol 16, Iss 16, p 2979 (2024)
The Arctic and boreal regions are experiencing a rapid increase in temperature, resulting in a changing cryosphere, increasing human activity, and potentially increasing high-latitude methane emissions. Satellite observations from Sentinel-5P TROPOMI
Externí odkaz:
https://doaj.org/article/3f1cdc138c6b42fd8b3a3995c1582c7d
Autor:
Anu Kauppi, Antti Kukkurainen, Antti Lipponen, Marko Laine, Antti Arola, Hannakaisa Lindqvist, Johanna Tamminen
Publikováno v:
Remote Sensing, Vol 16, Iss 11, p 1945 (2024)
This article presents a method within a Bayesian framework for quantifying uncertainty in satellite aerosol remote sensing when retrieving aerosol optical depth (AOD). By using a Bayesian model averaging technique, we take into account uncertainty in
Externí odkaz:
https://doaj.org/article/db283734558c46ea9895e837df5b0081
Autor:
Paul I. Palmer, A. Jerome P. Woodwark, Douglas P. Finch, Thomas E. Taylor, André Butz, Johanna Tamminen, Hartmut Bösch, Annmarie Eldering, Sebastien Vincent-Bonnieu
Publikováno v:
npj Microgravity, Vol 8, Iss 1, Pp 1-10 (2022)
Abstract The tropics is the nexus for many of the remaining gaps in our knowledge of environmental science, including the carbon cycle and atmospheric chemistry, with dire consequences for our ability to describe the Earth system response to a warmin
Externí odkaz:
https://doaj.org/article/69ea829ecee142c2be06a1c5113d1b0f
Autor:
Janne Hakkarainen, Iolanda Ialongo, Erik Koene, Monika E. Szeląg, Johanna Tamminen, Gerrit Kuhlmann, Dominik Brunner
Publikováno v:
Frontiers in Remote Sensing, Vol 3 (2022)
Since the Paris Agreement was adopted in 2015, the role of space-based observations for monitoring anthropogenic greenhouse gas (GHG) emissions has increased. To meet the requirements for monitoring carbon dioxide (CO2) emissions, the European Copern
Externí odkaz:
https://doaj.org/article/a1993b6a7bc04ac3b87e408d768a8773
Autor:
Aki Tsuruta, Ella Kivimäki, Hannakaisa Lindqvist, Tomi Karppinen, Leif Backman, Janne Hakkarainen, Oliver Schneising, Michael Buchwitz, Xin Lan, Rigel Kivi, Huilin Chen, Matthias Buschmann, Benedikt Herkommer, Justus Notholt, Coleen Roehl, Yao Té, Debra Wunch, Johanna Tamminen, Tuula Aalto
Publikováno v:
Remote Sensing, Vol 15, Iss 6, p 1620 (2023)
Recent advances in satellite observations of methane provide increased opportunities for inverse modeling. However, challenges exist in the satellite observation optimization and retrievals for high latitudes. In this study, we examine possibilities
Externí odkaz:
https://doaj.org/article/6b7dfd4f4ffe4c1ca0351bb8be50b67c
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 107, Iss , Pp 102701- (2022)
Surface albedo is a necessary parameter for climate studies and modeling. There is a need for a full spatial coverage of albedo data, but clouds and high solar zenith angle cause missing values to the optical satellite products, especially around the
Externí odkaz:
https://doaj.org/article/4b0682e951f348cba29589c1fb2573e7
Autor:
Ray Nassar, Chris McLinden, Christopher E. Sioris, C. T. McElroy, Joseph Mendonca, Johanna Tamminen, Cameron G. MacDonald, Cristen Adams, Céline Boisvenue, Adam Bourassa, Ryan Cooney, Doug Degenstein, Guillaume Drolet, Louis Garand, Ralph Girard, Markey Johnson, Dylan B.A. Jones, Felicia Kolonjari, Bruce Kuwahara, Randall V. Martin, Charles E. Miller, Norman O’Neill, Aku Riihelä, Sébastien Roche, Stanley P. Sander, William R. Simpson, Gurpreet Singh, Kimberly Strong, Alexander P. Trishchenko, Helena van Mierlo, Zahra Vaziri Zanjani, Kaley A. Walker, Debra Wunch
Publikováno v:
Canadian Journal of Remote Sensing, Vol 45, Iss 3-4, Pp 423-442 (2019)
AIM-North is a proposed satellite mission that would provide observations of unprecedented frequency and density for monitoring northern greenhouse gases (GHGs), air quality (AQ) and vegetation. AIM-North would consist of two satellites in a highly e
Externí odkaz:
https://doaj.org/article/bea1eaa11e724d9f81977ffae07d9fbc
Autor:
Nickolay Krotkov, Vincent Realmuto, Can Li, Colin Seftor, Jason Li, Kelvin Brentzel, Martin Stuefer, Jay Cable, Carl Dierking, Jennifer Delamere, David Schneider, Johanna Tamminen, Seppo Hassinen, Timo Ryyppö, John Murray, Simon Carn, Jeffrey Osiensky, Nate Eckstein, Garrett Layne, Jeremy Kirkendall
Publikováno v:
Remote Sensing, Vol 13, Iss 19, p 4003 (2021)
We describe NASA’s Applied Sciences Disasters Program, which is a collaborative project between the Direct Readout Laboratory (DRL), ozone processing team, Jet Propulsion Laboratory, Geographic Information Network of Alaska (GINA), and Finnish Mete
Externí odkaz:
https://doaj.org/article/c59154e30ad44e58815fb1dbb5552925
Autor:
Hartmut Boesch, Yi Liu, Johanna Tamminen, Dongxu Yang, Paul I. Palmer, Hannakaisa Lindqvist, Zhaonan Cai, Ke Che, Antonio Di Noia, Liang Feng, Janne Hakkarainen, Iolanda Ialongo, Nikoleta Kalaitzi, Tomi Karppinen, Rigel Kivi, Ella Kivimäki, Robert J. Parker, Simon Preval, Jing Wang, Alex J. Webb, Lu Yao, Huilin Chen
Publikováno v:
Remote Sensing, Vol 13, Iss 14, p 2700 (2021)
The increase in atmospheric greenhouse gas concentrations of CO2 and CH4, due to human activities, is the main driver of the observed increase in surface temperature by more than 1 °C since the pre-industrial era. At the 2015 United Nations Climate
Externí odkaz:
https://doaj.org/article/e70182c473464c29a2ffd4d7a621e0e8
Autor:
Tomi Karppinen, Otto Lamminpää, Simo Tukiainen, Rigel Kivi, Pauli Heikkinen, Juha Hatakka, Marko Laine, Huilin Chen, Hannakaisa Lindqvist, Johanna Tamminen
Publikováno v:
Remote Sensing, Vol 12, Iss 6, p 917 (2020)
We analyzed the vertical distribution of atmospheric methane (CH 4 ) retrieved from measurements by ground-based Fourier Transform Spectrometer (FTS) instrument in Sodankylä, Northern Finland. The retrieved dataset covers 2009−2018. We used a dime
Externí odkaz:
https://doaj.org/article/18777540b428400e8746dda9c19e386b