Benchmark campaign and case study episode in central Europe for development and assessment of advanced GNSS tropospheric models and products

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025615%3A_____%2F16%3AN0000056" target="_blank" >RIV/00025615:_____/16:N0000056 - isvavai.cz</a>

Alternative codes found

RIV/61989100:27350/16:86098475

Result on the web

<a href="http://www.atmos-meas-tech.net/9/2989/2016/" target="_blank" >http://www.atmos-meas-tech.net/9/2989/2016/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/amt-9-2989-2016" target="_blank" >10.5194/amt-9-2989-2016</a>

Result language

angličtina

Original language name

Benchmark campaign and case study episode in central Europe for development and assessment of advanced GNSS tropospheric models and products

Original language description

Initial objectives and design of the Benchmark campaign organized within the European COST Action ES1206 (2013-2017) are described in the paper. This campaign has aimed to support the development and validation of advanced Global Navigation Satellite System (GNSS) tropospheric products, in particular high-resolution and ultrafast zenith total delays (ZTDs) and tropospheric gradients derived from a dense permanent network. A complex data set was collected for the 8-week period when several extreme heavy precipitation episodes occurred in central Europe which caused severe river floods in this area. An initial processing of data sets from GNSS products and numerical weather models (NWMs) provided independently estimated reference parameters - zenith tropospheric delays and tropospheric horizontal gradients. Their provision gave an overview about the product similarities and complementarities, and thus a potential for improvements of a synergy in their optimal exploitations in future. Reference GNSS and NWM results were intercompared and visually analysed using animated maps. ZTDs from two reference GNSS solutions compared to global ERA-Interim reanalysis resulted in accuracy at the 10 mm level in terms of the root mean square (rms) with a negligible overall bias, comparisons to Global Forecast System (GFS) forecasts showed accuracy at the 12 mm level with the overall bias of -5 mm and, finally, comparisons to mesoscale ALADIN-CZ forecast resulted in accuracy at the 8 mm level with a negligible total bias. The comparison of horizontal tropospheric gradients from GNSS and NWM data demonstrated a very good agreement among independent solutions with negligible biases and an accuracy of about 0.5 mm. Visual comparisons of maps of zenith wet delays and tropospheric horizontal gradients showed very promising results for future exploitations of advanced GNSS tropospheric products in meteorological applications, such as severe weather event monitoring and weather now-casting.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Atmospheric Measurement Techniques

ISSN

1867-1381

e-ISSN

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Volume of the periodical

9

Issue of the periodical within the volume

7

Country of publishing house

DE - GERMANY

Number of pages

20

Pages from-to

2989-3008

UT code for WoS article

000381094100003

EID of the result in the Scopus database

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