Evaluation of sun photometer capabilities for retrievals of aerosol optical depth at high latitudes: The POLAR-AOD intercomparison campaigns

被引：19

作者：

Mazzola, M. ^{[1
]}

Stone, R. S. ^{[2
,3
]}

Herber, A. ^{[4
]}

Tomasi, C. ^{[1
]}

Lupi, A. ^{[1
]}

Vitale, V. ^{[1
]}

Lanconelli, C. ^{[1
]}

Toledano, C. ^{[5
]}

Cachorro, V. E. ^{[5
]}

O'Neill, N. T. ^{[6
]}

Shiobara, M. ^{[7
]}

Aaltonen, V. ^{[8
]}

Stebel, K. ^{[9
]}

Zielinski, T. ^{[10
]}

Petelski, T. ^{[10
]}

Ortiz de Galisteo, J. P. ^{[5
,11
]}

Torres, B. ^{[5
]}

Berjon, A. ^{[5
]}

Goloub, P. ^{[12
]}

Li, Z. ^{[12
]}

Blarel, L. ^{[12
]}

Abboud, I. ^{[13
]}

Cuevas, E. ^{[14
]}

Stock, M. ^{[15
]}

Schulz, K. -H. ^{[16
]}

Virkkula, A. ^{[8
,17
]}

机构：

[1] CNR, ISAC, I-40129 Bologna, Italy

[2] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

[3] NOAA, Global Monitoring Div, Earth Syst Res Lab, Boulder, CO USA

[4] Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany

[5] Univ Valladolid, Grp Atmospher Opt, Valladolid, Spain

[6] Univ Sherbrooke, Ctr Applicat & Rech Teledetect, Sherbrooke, PQ J1K 2R1, Canada

[7] Natl Inst Polar Res, Tokyo, Japan

[8] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland

[9] Norwegian Inst Air Res, Polar Environm Ctr, Tromso, Norway

[10] Polish Acad Sci, Inst Oceanol, Sopot, Poland

[11] Spanish Meteorol Agcy AEMET, Valladolid, Spain

[12] Univ Lille 1, CNRS, LOA, Lille, France

[13] Environm Canada, Expt Studies Div, Toronto, ON, Canada

[14] Spanish Meteorol Agcy AEMET, Izana Observ, Tenerife, Spain

[15] Alfred Wegener Inst Polar & Marine Res, Potsdam, Germany

[16] Dr Schulz & Partner GmbH, Buckow, Germany

[17] Univ Helsinki, Dept Phys, Helsinki, Finland

来源：

ATMOSPHERIC ENVIRONMENT | 2012年 / 52卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Aerosol; Polar regions; Sun photometry; Optical depth; Intercomparison; Calibration; RAYLEIGH-SCATTERING; NETWORK; ALGORITHM; RADIOMETERS; AERONET;

D O I：

10.1016/j.atmosenv.2011.07.042

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Accuracy requirements for aerosol optical depth (ADD) in polar regions are much more stringent than those usually encountered in established sun photometer networks, while comparability of data from different archive centres is a further important issue. Therefore, two intercomparison campaigns were held during spring 2006 at Ny-Alesund (Svalbard) and autumn 2008 at Izana (Tenerife) within the framework of the IPY POLAR-AOD project, with the participation of various research institutions routinely employing different instrument models at Arctic and Antarctic stations. As reported here, a common algorithm was used for data analysis with the aim of minimizing a large part of the discrepancies affecting the previous studies. During the Ny-Alesund campaign, spectral values of AOD derived from measurements taken with different instruments were found to agree, presenting at both 500 nm and 870 nm wavelengths average values of root mean square difference (RMSD) and standard deviation of the difference (SDD) equal to 0.003. Correspondingly, the mean bias difference (MBD) varied mainly between -0.003 and +0.003 at 500 nm, and between -0.004 and +0.003 at 870 nm. During the Izana campaign, which was also intended as an intercalibration opportunity. RMSD and SDD values were estimated to be equal to 0.002 for both channels on average, with MBD ranging between -0.004 and +0.004 at 500 nm and between -0.002 and +0.003 at 870 nm. RMSD and SDD values for Angstrom exponent a were estimated equal to 0.06 during the Ny-Alesund campaign and 0.39 at Izana. The results confirmed that sun photometry is a valid technique for aerosol monitoring in the pristine atmospheric turbidity conditions usually observed at high latitudes. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：4 / 17

页数：14

共 38 条

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