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| Titel |
First results from comparison of rainfall estimations by GPM IMERG with rainfall measurements from the WegenerNet high density network |
| VerfasserIn |
Sungmin Oo, Ulrich Foelsche, Gottfried Kirchengast, Jürgen Fuchsberger |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250124865
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| Publikation (Nr.) |
 EGU/EGU2016-4362.pdf |
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| Zusammenfassung |
| The research level products of the Integrated Multi-Satellite Retrievals for Global
Precipitation Measurement (IMERG “Final” run datasets) were compared with rainfall
measurements from the WegenerNet high density network as part of ground validation (GV)
projects of GPM missions. The WegenerNet network comprises 151 ground level weather
stations in an area of 15 km × 20 km in south-eastern Austria (Feldbach region, ∼46.93˚ N,
∼15.90˚ E) designed to serve as a long-term monitoring and validation facility for
weather and climate research and applications. While the IMERG provides rainfall
estimations every half hour at 0.1˚ resolution, the WegenerNet network measures rainfall
every 5 minutes at around 2 km2 resolution and produces 200 m × 200 m gridded
datasets.
The study was conducted on the domain of the WegenerNet network; eight IMERG grids
are overlapped with the network, two of which are entirely covered by the WegenerNet (40
and 39 stations in each grid). We investigated data from April to September of the years 2014
to 2015; the date of first two years after the launch of the GPM Core Observatory. Since the
network has a flexibility to work with various spatial and temporal scales, the comparison
could be conducted on average-points to pixel basis at both sub-daily and daily
timescales. This presentation will summarize the first results of the comparison
and future plans to explore the characteristics of errors in the IMERG datasets. |
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