Determination of aerosol radiative forcing from Poland-AOD ground-based network and CAMS data.

Krzysztof MarkowiczInstitute of Geophysics, Faculty of Physics

University of Warsawkmark@igf.fuw.edu.p

www.polandaod.pl

Poland-AOD• Network of 9 (2017) field stations • Established in 2011 for aerosol-climate research

www.polandaod.pl

AA,E

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Poland-AOD consortium

- Radiative Transfer Laboratory at the Institute of Geophysics, Physics Department of the University of Warsaw (urban station),

- Research Station at the Institute of Oceanology Polish Academy of Sciences in Sopot(urban-marine station),

- SolarAOT Research Station for the studies of Radiative Transfer in Strzyzow(background station).

- Meteorology and Climatology Observatory at Nicolaus Copernicus University in Torun (urban station)

- Research station in Rzecin, Poznań University of Life Sciences (background station)- Meteorology and Climatology Observatory at University of Wroclaw (urban station)- Reaserch station in Borucino University of Gdańsk (background station)- Central Geophysical Observatory in Belsk, Polish Academy of Science (background

station)- Central Geophysical Observatory in Racibórz, Polish Academy of Science (urban

station- EcoForecast Foundation

Objectives of Poland-AOD network

• Experimental and numerical studies of direct aerosol effect.• Study of impact black carbon and absorbing aerosol on the

climate system• Integration of remote sensing observation with UAV

measurements for retrieval profile of single-scattering properties

• Determination aerosol optical and microphysical properties climatology of over Poland and estimation of the long-term trends.

• Studies of transformation of aerosol optical properties over urban areas based on observations and aerosol transport models (CAMS, GEM-AQ, NAAPS).

• Calibration of optical instrument and testing new methods

IO-PAS SopotSopotWarsaw

IGF-UWWarsaw

Warsaw Strzyzow

Belsk

Wrocław

Racibórz

Equipment Wavelength [nm] Wa-wa Sopot Strzy Toruń Rzecin Besk Racib Wroc Brouc

Sun photometer Microtops II 380-1020 nm + + - + + - - - -Shadowband Radiometer MFR-7 415, 500, 610, 675, 870 oraz 940 nm + + + - - - - - -

CIMEL 340, 380, 440, 500, 675, 870, 936, 1020, 1640 - - + - + + + - -

Pyranometer 300-4000 nm + + + + + + - + +Pyrheliometer 300-4000 nm + - - + - - - - +Pyrgeometer 4000-50000 nm + - + - - - - + +Albedometer 285 to 2800 nm - - + - + - - - +Net radiometer 300-2800 nm oraz 4500 42000 nm + - - - + - - - ++UW Radiometer 315-400 nm - - - + - + - - +Sun shine - - - + - - - - +Sun Spectrometer 350-1050 nm + - + - - - - - +Sun Tracker STR22/Solys2 + - + + - - - - +Ceilometer CHM15K 1064 nm - + + - - - + - -Lidar Raymetrics 532 nm - + - - - - - - -Raman lidar + NARL’a 355, 387, 407, 532, 607, 1064 nm + - - - - (+) - - -Aethelometer AE-31 370, 470, 520, 590, 660, 880, 950 nm - + + - - - - - -Nephelometer (Aurora/TSI) 450, 550, 650 nm - + + - - - - - -Photoacoustic Extinctiometer532 532 nm + + - - - - - - -

Photoacoustic Extinctiometer870 870 nm + - - - - - - - -

Micro Aethalometr AE-51 880 nm + + - - - - - -CPC/ SMPS - + - - - + - - -PMS + + - - - + - - -Weather station WXT510/WXT520 + - + + + + + + +Sky camera + + + + - + - - -MSG/ SEVIRI + + + + + + + + +Eddy covariance + + + - - - - - +UAV + + - - - - - - +Radiosonde system RS92SGP - - + - - - - - -

+ - + - - - - - -

Sounding of the lower troposphere

Vertical profiling in the background area(Jaworzyna Krynicka)

Vertical profiling in the large city (Kielce)

Equipment

AE-51

OPC-N2

RS92SGP

• BC concentration

• Aerosol size distribution OPC-N2

• Thermodynamic parameters

Integrating lidar and UAV sounding for single scattering albedo profile retrieval

Optical structure of haze in the mountain region

Selected BC profiles

Chiliński et al., 2016

• Haze event on 3 Feb 2014 during strong inversion condition. The mean temperature gradient in the first 200 m was 6.4o/100m.

• The black carbon concentration reached 40 µg/m3 (20 times larger than long-term mean value)

• High radiative heating (up to 35 K/day for solar zenith angle 70o and up to 15 K/day for solar zenith angle of 80o).

Arctic Air Mass

Example: Vertical variability of aerosol properties based on cable cars in-situ measurements in mountain region

• Zawadzka et al., 2017

BC profiles during extremely haze event

on 8 Jan 2017 (Kielce)

RadiativeTransferOff-line

radiative forcing thermodynamics profiles - reanalysis

FU-Liou RTM

CAMS

aerosol optical properties

cloud optical database MODIS cloud climatology

surface optical properties

cloud optical model MODIS AOD

Poland-AOD

Estimation of Anthropogenic AOD

1. The optimal interpolation method is used to correct the AOD from MODIS to the ground-based observations

2. Spatial distribution of ANTH AOD to total AOD ratio is estimated from CAMS

3. This ratio is used to compute the spatial distribution of ANTH AOD.

Mean (2003-2012) total and anthropogenic AOD at 550 nm

Mean radiative forcing for anthropogenic aerosol [W/m2]

Long-term monthly mean SW RF [W/m2] at Poland-AOD stations

Columnar versus surface aerosol properties

Annual cycle of the AOD and extinction coefficient

AOD and surface extinction and also PM10 for monthly mean is negatively correlated

Conclusions

• 3rd Poland-AOD conference, 2-4 July 2017, Warsaw• Summer School (Aerosol remote sensing and air quality

monitoring from space), 5-8 July 2017, Warsaw• For more information see www.polandaod.pl