B02: Remote sensing of aerosol properties and surface reflectance in the Arctic from satellite observations

PIs: John P. Burrows, Marco Vountas

Project B02 addresses the need to establish and investigate changes of aerosol properties and Surface Spectral Reflectance (SSR) in the solar spectral region, their origins and impact on Arctic Amplification. To achieve this goal, the temporal changes in aerosol loading and type and SSR between 60°N and 90°N are to be investigated over the past 2–3 decades using data from a series of nadir sounding spectrometers. The research focuses on the determination of the SSR and aerosol optical properties for cloud free scenes. The aerosol retrieval algorithm developed over the past 15 years at University of Bremen will be optimized and adapted for the selected data sets. These deliver Aerosol Optical Thickness (AOT), and aerosol type, SSR and other relevant parameters. While the approach relies on a precise de–coupling of emission and reflectivity at 3.7 μm channel, the approaches of make use of the dual–viewing capabilities of the satellite instrument AATSR. These approaches utilize spatially well resolved radiometer data in the visible and infrared regions to retrieve AOT over snow/ice. For land surfaces in the Arctic regions improved but well–established alternative retrieval methodologies will be used, such as the new approach developed at University of Bremen. Equally important is the determination of the SSR. Having established the time series of data products, comprising consistent and consolidated aerosol optical properties and SSR for 60°N to 90°N, these data will be analysed and the role of changing aerosol optical parameters and surface type and reflectance in the Arctic Amplification and any feedback will be investigated.

Hypothesis: Changes in solar reflectance at the TOA in cloud–free regions are dominated by aerosol optical properties and surface reflectance.

In order to test the hypothesis, we will address the following central question:

  • How have the aerosol properties and SSR changed over the Arctic temporally and spatially?

Role within (AC)³

  • Knowledge obtained from analyses of surface-atmosphere interaction and processes in Cluster C feed back into WP1
  • Cloud characteristics derived by B01, B03, B04 and B06 to be used in the development of accurate cloud screening algorithm in WP2
  • Verification/validation in WP3 will benefit from validation activities in projects of Cluster A and E02
  • Case studies for different aerosol/surface conditions in WP4 can be tested in C01and D02
  • Long-term dataset created by WP5 can be validated in part by comparison with data products from C01, D01, D02, E04
  • Analysis of datasets in WP5 basis for Cluster E model evaluation and attributions studies
matrix_B02

Members

Dr. Marco Vountas

Principal Investigator

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28359 Bremen

phone:

++49 (0) 421 218 62106

e-mail:

vountas[at]iup.physik.uni-bremen.de

B01_Linlu_Mei

Dr. Linlu Mei

Postdoc

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28359 Bremen

phone:

++49 (0) 421 218 62106

e-mail:

mei[at]iup.physik.uni-bremen.de

Dr. Luca Lelli

Postdoc

University of Bremen
Institute for Environmental Physics (IUP)
Otto-Hahn-Allee 1
28359 Bremen

phone:

++49 (0) 421 218 62097

e-mail:

luca[at]iup.physik.uni-bremen.de

Soheila Jafariserajehlou

PhD

University of Bremen
Institute of Environmental Physics (IUP)
Otto-Hahn-Allee 1
28359 Bremen

phone:

++49 (0) 421 218 62136

e-mail:

jafari[at]iup.physik.uni-bremen.de

Prof. Dr. John P. Burrows

Principal Investigator

University of Bremen
Institute of Environmental Physics
Otto-Hahn-Allee 1
28334 Bremen

phone:

++49 (0) 421 218 62100

e-mail:

burrows[at]iup.physik.uni-bremen.de

Publications

2019

Ding, A., Z. Jiao, Y. Dong, X. Zhang, J.I. Peltoniemi, L. Mei, J. Guo, S. Yin, L. Cui, Y. Chang, and R. Xie, 2019: Evaluation of the Snow Albedo Retrieved from the Snow Kernel Improved Ross-Roujean BRDF Model, Remote Sensing11, 1611, doi:10.3390/rs11131611

Mei, L., V.V. Rozanov, H. Jethva, K.G. Meyer, L. Lelli, M. Vountas, and J.P. Burrows, 2019: Extending XBAER algorithm to aerosol and cloud condition, accepted for publication in IEEE Transactions on Geoscience and Remote Sensing, doi:10.1109/TGRS.2019.2919910

Wendisch, M., A. Macke, A. Ehrlich, C. Lüpkes, M. Mech, D. Chechin, K. Dethloff, C. Barrientos, H. Bozem, M. Brückner, H.-C. Clemen, S. Crewell, T. Donth, R. Dupuy, C. Dusny, K. Ebell, U. Egerer, R. Engelmann, C. Engler, O. Eppers, M. Gehrmann, X. Gong, M. Gottschalk, C. Gourbeyre, H. Griesche, J. Hartmann, M. Hartmann, B. HeinoldA. Herber, H. Herrmann, G. Heygster, P. Hoor, S. Jafariserajehlou, E. Jäkel, E. Järvinen, O. Jourdan, U. Kästner, S. Kecorius, E.M. Knudsen, F. Köllner, J. Kretzschmar, L. Lelli, D. Leroy, M. Maturilli, L. Mei, S. Mertes, G. Mioche, R. Neuber, M. Nicolaus, T. Nomokonova, J. Notholt, M. Palm, M. van Pinxteren, J. Quaas, P. Richter, E. Ruiz-Donoso, M. Schäfer, K. Schmieder, M. Schnaiter, J. Schneider, A. Schwarzenböck, P. Seifert, M.D. Shupe, H. Siebert, G. Spreen, J. Stapf, F. Stratmann, T. Vogl, A. Welti, H. Wex, A. Wiedensohler, M. Zanatta, S. Zeppenfeld, 2019: The Arctic Cloud Puzzle: Using ACLOUD/PASCAL Multi-Platform Observations to Unravel the Role of Clouds and Aerosol Particles in Arctic Amplification, Bull. Amer. Meteor. Soc., 100 (5), 841–871, doi:10.1175/BAMS-D-18-0072.1

Mei, L.L., V. Rozanov, R. Christoph, H. Bernd, Z.T. Jiao, M. Vountas, and J.P. Burrows, 2019: Retrieval of Aerosol Optical Thickness in the Arctic Snow-Covered Regions Using Passive Remote Sensing: Impact of Aerosol Typing and Surface Reflection Model, submitted to IEEE Transactions on Geoscience and Remote Sensing (under review)

Mei, L., J. Strandgren, V. Rozanov, M. Vountas, J. P. Burrows, and Y. J. Wang, 2019: Study of satellite retrieved aerosol optical depth spatial resolution effect on particulate matter concentration prediction, Int. J. Remote Sens., 40 (18), 7084-7112, doi:10.1080/01431161.2019.1601279

Jafariserajehlou, S.L. MeiM. Vountas, V. Rozanov, J.P. Burrows, and R. Hollmann, 2019: A cloud identification algorithm over the Arctic for use with AATSR/SLSTR measurements, Atmos. Meas. Tech., 12, 1059-1076, doi:10.5194/amt-12-1059-2019

Jiao, Z., A. Ding, A. Kokhanovsky, C. Schaaf, F. Bréon, Y. Dong, Z. Wang, Y. Liu, X. Zhang, S. Yin, L. Cui, L. Mei, Y. Chang, 2019: Development of a Snow Kernel to Better Model the Anisotropic Reflectance of Pure Snow into a Kernel-Driven BRDF Model Framework, Remote Sensing Environment, 221, 198-209, doi:10.1016/j.rse.2018.11.001

2018

Che, Y., L. Mei, Y. Xue, J. Guang, L. She, and Y. Li, Y., 2018: Validation of Aerosol Products from AATSR and MERIS/AATSR Synergy Algorithms – Part 1: Global Evaluation. Remote Sens., 10, 1414, doi:10.3390/rs10091414

Mei, L., V. Rozanov, M. Vountas, J.P. Burrows, and A. Richter, 2018: XBAER-derived aerosol optical thickness from OLCI/Sentinel-3 observation, Atmospheric Chemistry and Physics, 18 (4), 2511–2523, doi:10.5194/acp-18-2511-2018

Lelli, L. and Vountas, M., 2018: Chapter 5 – Aerosol and Cloud Bottom Altitude Covariations From Multisensor Spaceborne Measurements, In Remote Sensing of Aerosols, Clouds, and Precipitation, edited by Tanvir Islam, Yongxiang Hu, Alexander Kokhanovsky and Jun Wang, Elsevier, pp 109-127, ISBN 9780128104378, https://doi.org/10.1016/B978-0-12-810437-8.00005-0

Lelli, L., V. V. Rozanov, M. Vountas, J. P. Burrows, 2017: Polarized radiative transfer through terrestrial atmosphere accounting for rotational Raman scattering, J. Quant. Spect. Rad. Trans., 200, 70-89, doi:10.1016/j.jqsrt.2017.05.027

Mei, L., V. Rozanov, M. Vountas, J. P. Burrows, R. C. Levy, W. Lotz, 2017: Retrieval of aerosol optical properties using MERIS observations: Algorithm and some first results, Rem. Sens. Environ., 197, 125-140, doi:10.1016/j.rse.2016.11.015

She, L., Mei, L., Xue, Y. Che, Y., and Guang, J., 2017: SAHARA: A Simplified AtmospHeric Correction AlgoRithm for Chinese gAofen Data: 1. Aerosol Algorithm, Remote Sens., 9, 253, doi:10.3390/rs9030253

Wendisch, M., M. Brückner, J. P. Burrows, S. Crewell, K. Dethloff, K. Ebell, Ch. Lüpkes, A. Macke, J. Notholt, J. Quaas, A. Rinke, and I. Tegen, 2017: Understanding causes and effects of rapid warming in the Arctic. Eos, 98, doi:10.1029/2017EO064803

Project Poster