Multi-year GNSS monitoring of atmospheric IWV over Central and South America for climate studies

Bianchi, Clara Eugenia; Mendoza, Luciano Pedro Oscar; Fernández, Laura Isabel; Natali, María Paula; Meza, Amalia Margarita; Moirano, Juan Francisco

doi:https://doi.org/10.5194/angeo-34-623-2016

Articles | Volume 34, issue 7

https://doi.org/10.5194/angeo-34-623-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/angeo-34-623-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 34, issue 7

Regular paper

|

20 Jul 2016

Regular paper |

| 20 Jul 2016

Multi-year GNSS monitoring of atmospheric IWV over Central and South America for climate studies

Clara Eugenia Bianchi, Luciano Pedro Oscar Mendoza, Laura Isabel Fernández, María Paula Natali, Amalia Margarita Meza, and Juan Francisco Moirano

Data sets

Time series of atmospheric water vapour and troposphere zenith total delay, over Central and South America, from a homogeneous GNSS reprocessing (MAGGIA ZTD & IWV Solution 1) C. Bianchi, L. P. O. Mendoza, L. Fernández, M. P. Natali, A. Meza, and J. Moirano https://doi.org/10.1594/PANGAEA.858234

VMF1 Mapping Function J. Böhm, B. Werl, and H. Schuh http://ggosatm.hg.tuwien.ac.at/DELAY/GRID/VMFG/

GPT2w model J. Böhm, G. Möller, M. Schindelegger, G. Pain, and R. Weber http://ggosatm.hg.tuwien.ac.at/DELAY/SOURCE/GPT2w/

CODE final product series for the IGS R. Dach, S. Schaer, D. Arnold, E. Orliac, L. Prange, A. Susnik, A. Villiger, and A. Jaeggi http://www.aiub.unibe.ch/download/CODE

ERA-Interim Pressure Levels D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kållberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut, and F. Vitart http://apps.ecmwf.int/datasets/data/interim-full-daily/levtype=pl/

IGS Tracking Data J. M. Dow, R. E. Neilan, and C. Rizos ftp://cddis.gsfc.nasa.gov/gps/data/

NOAA Integrated Surface Database A. Smith, N. Lott, and R. Vose ftp://ftp.ncdc.noaa.gov/pub/data/noaa/isd-lite/

EGM2008 N. K. Pavlis, S. A. Holmes, S. C. Kenyon, and J. K. Factor http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008/egm08_wgs84.html

RAMSAC Tracking Data Instituto Geográfico Nacional http://www.ign.gob.ar/NuestrasActividades/Geodesia/Ramsac/DescargaRinex

RBMC Tracking Data Instituto Brasileiro de Geografia e Estatística ftp://geoftp.ibge.gov.br/informacoes_sobre_posicionamento_geodesico/rbmc/dados/

IGS repro2 Solutions P. Rebischung ftp://igs-rf.ensg.eu/pub/repro2

SONEL GNSS Tracking Data Systéme d'Observation du Niveau des Eaux Littorales ftp://ftp.sonel.org/gps/data/

Surface Observations data set University of Wyoming http://weather.uwyo.edu/surface/meteorogram/

Upper Air data set University of Wyoming http://weather.uwyo.edu/upperair/sounding.html

Short summary

Long-term monitoring of the amount of water vapour in the lower atmosphere is essential for climate studies. We analysed satellite observations, at hundreds of locations in Central and South America, to look for changes in this parameter over several years. We found evidence of drying of the troposphere in temperate regions, and also evidence of slow moistening over the tropics. Moreover, we openly provide the complete data collection to the scientific community.