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First 126 results for ” J Hahkala”

  1. Using Virtual Organizations Membership System with EDG\'s Grid Security and Database Access

    This paper describes the European Data Grid s (EDG s) java security system and Spitfire database ...

    M Niinimaki, J White, WJ Som de Cerff, J Hahkala, T Niemi, M Pitkanen | Conference: Grid and Peer-to-Peer Computing Impacts on Large Scale Heterogoneous Distributed Database Systems | Organisation: GLOBE 2004 | Place: Zaragoza | First page: 0 | Last page: 0

    Publication

  2. The TROPOMI surface UV algorithm

    The TROPOspheric Monitoring Instrument (TROPOMI) is the only payload of the Sentinel-5 Precursor ...

    AV Lindfors, J Kujanpää, N Kalakoski, A Heikkilä, K Lakkala, T Mielonen, M Sneep, NA Krotkov, A Arola, J Tamminen1 | Status: published | Journal: Atmospheric Measurement Techniques | Volume: 11 | Year: 2018 | First page: 997 | Last page: 1008 | doi: 10.5194/amt-11-997-2018

    Publication

  3. Towards a European UV-climatology utilising ground-based and satellite based analysis

    UV-radiation levels at the ground can be strongly influenced by ozone and climate change. Over on...

    H Slaper, PN den Outer, JE Williams, A Bais, J Kaurola, K Lakkala, G Seckmeyer, P Weihs | Conference: Quadrennial Ozone Symposium | Organisation: International Ozone Commision | Place: Kos,Greece | First page: 249 | Last page: 250

    Publication

  4. The 2022 Starlink Geomagnetic Storms: Global Thermospheric Response to a High-Latitude Ionospheric Driver

    In this study, we present ionospheric observations of field-aligned currents from AMPERE and the ...

    D. D. Billett, K. Sartipzadeh, M. F. Ivarsen, E. Iorfida, E. Doornbos, E. C. Kalafatoglu Eyiguler, K. Pandey, K. A. McWilliams | Journal: Space Weather | Volume: 22(2) | Year: 2024 | doi: https://doi.org/10.1029/2023SW003748

    Publication

  5. The PROMOTE UV Record: Toward a Global Satellite-Based Climatology of Surface Ultraviolet Irradiance

    This paper describes the PROMOTE UV Record, which aims to provide a global long-term record of th...

    A Lindfors, A Tanskanen, A Arola, RJ van der A, A Bias, U Feister, M Janouch, W Josefsson, T Koskela, K Lakkala, PN den Outer, ARD Smedley, H Slaper, AR Webb | Status: published | Journal: IEEE Transactions on Geoscience and Remote Sensing | Volume: 2 | Year: 2009 | First page: 207 | Last page: 212 | doi: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5286247&isnumber=5306442

    Publication