The SPARC Water Vapor Assessment II: assessment of satellite measurements of upper tropospheric humidity

被引：4

作者：

Read, William G. ^{[1
]}

Stiller, Gabriele ^{[2
]}

Lossow, Stefan ^{[2
]}

Kiefer, Michael ^{[2
]}

Khosrawi, Farahnaz ^{[2
]}

Hurst, Dale ^{[3
]}

Vomel, Holger ^{[4
]}

Rosenlof, Karen ^{[5
]}

Dinelli, Bianca M. ^{[6
]}

Raspollini, Piera ^{[7
]}

Nedoluha, Gerald E. ^{[8
]}

Gille, John C. ^{[9
,10
]}

Kasai, Yasuko ^{[11
]}

Eriksson, Patrick ^{[12
]}

Sioris, Christopher E. ^{[13
]}

Walker, Kaley A. ^{[14
]}

Weigel, Katja ^{[15
]}

Burrows, John P. ^{[15
]}

Rozanov, Alexei ^{[15
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA

[2] Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany

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

[4] Natl Ctr Atmospher Res, Earth Observing Lab, POB 3000, Boulder, CO 80307 USA

[5] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO USA

[6] ISAC CNR, Inst Sci Atmosfera Clima, Consiglio Nazl Ric, Via Gobetti 101, I-40129 Bologna, Italy

[7] IFAC CNR, Inst Fis Applicata, Consiglio Nazl Ric, Via Madonna Piano 10, I-50019 Sesto Fiorentino, Italy

[8] Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave Southwest, Washington, DC 20375 USA

[9] Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA

[10] Univ Colorado, Atmospher & Ocean Sci, Boulder, CO 80309 USA

[11] Natl Inst Informat & Commun Technol NICT, Terahertz Technol Res Ctr, 4-2-1 Nukui Kita, Koganei, Tokyo 1848795, Japan

[12] Chalmers Univ Technol, Dept Space Earth & Environm, Horsalsvagen 11, S-41296 Gothenburg, Sweden

[13] York Univ, Ctr Res Earth & Space Sci, 4700 Keele St, Toronto, ON M3J 1P3, Canada

[14] Univ Toronto, Dept Phys, 60 St George St, Toronto, ON M5S 1A7, Canada

[15] Univ Bremen, Inst Environm Phys, Otto Hahn Allee 1, D-28359 Bremen, Germany

来源：

ATMOSPHERIC MEASUREMENT TECHNIQUES | 2022年 / 15卷 / 11期

基金：

美国国家航空航天局;

关键词：

RETRIEVAL; AIRS/AMSU/HSB; OBJECTIVES; MISSION; SMILES; OZONE;

D O I：

10.5194/amt-15-3377-2022

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Nineteen limb-viewing data sets (occultation, passive thermal, and UV scattering) and two nadir upper tropospheric humidity (UTH) data sets are intercompared and also compared to frost-point hygrometer balloon sondes. The upper troposphere considered here covers the pressure range from 300-100 hPa. UTH is a challenging measurement, because concentrations vary between 2-1000 ppmv (parts per million by volume), with sharp changes in vertical gradients near the tropopause. Cloudiness in this region also makes the measurement challenging. The atmospheric temperature is also highly variable ranging from 180-250 K. The assessment of satellite-measured UTH is based on coincident comparisons with balloon frost-point hygrometer sondes, multi-month mapped comparisons, zonal mean time series comparisons, and coincident satellite-to-satellite comparisons. While the satellite fields show similar features in maps and time series, quantitatively they can differ by a factor of 2 in concentration, with strong dependencies on the amount of UTH. Additionally, time-lag response-corrected Vaisala RS92 radiosondes are compared to satellites and the frost-point hygrometer measurements. In summary, most satellite data sets reviewed here show on average similar to 30 % agreement amongst themselves and frost-point data but with an additional similar to 30 % variability about the mean bias. The Vaisala RS92 sonde, even with a time-lag correction, shows poor behavior for pressures less than 200 hPa.

引用

页码：3377 / 3400

页数：24

共 51 条

[1] UV Dosage Levels in Summer: Increased Risk of Ozone Loss from Convectively Injected Water Vapor [J].