Preprints
https://doi.org/10.5194/essd-2019-215
https://doi.org/10.5194/essd-2019-215
16 Dec 2019
 | 16 Dec 2019
Status: this preprint has been withdrawn by the authors.

AntAir: satellite-derived 1 km daily Antarctic air temperatures since 2003

Hanna Meyer, Marwan Katurji, Florian Detsch, Fraser Morgan, Thomas Nauss, Pierre Roudier, and Peyman Zawar-Reza

Abstract. Air temperature is an important baseline parameter for terrestrial Antarctica in the context of patterns and processes in climatology, hydrology or ecology. There are still large uncertainties on how the Antarctic system responds to spatio-temporal variability of temperature. This can partly be attributed to the lack of high resolution datasets. In this paper, we present AntAir, a new dataset of gridded air temperatures in 1 km spatial and daily temporal resolution that is available since 2003. AntAir was created by modelling daily air temperature from MODIS land surface temperature using machine learning algorithms. Data from 70 weather stations was used as a reference. Daily temperatures could be estimated with a R2 of 0.91 and a RMSE of 5.07 °C validated on independent years. The performance to estimate the time series of a new spatial location was R2 = 0.78 and RMSE = 5.83 °C. Hence the high spatial and temporal resolution of the dataset as well as the high accuracy make AntAir an important baseline dataset for a wide range of applications in environmental science of Antarctica. The dataset is available at https://doi.pangaea.de/10.1594/PANGAEA.902166 (daily, Meyer et al., 2019a) and https://doi.pangaea.de/10.1594/PANGAEA.902193 (monthly, Meyer et al., 2019b).

This preprint has been withdrawn.

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Hanna Meyer, Marwan Katurji, Florian Detsch, Fraser Morgan, Thomas Nauss, Pierre Roudier, and Peyman Zawar-Reza

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Hanna Meyer, Marwan Katurji, Florian Detsch, Fraser Morgan, Thomas Nauss, Pierre Roudier, and Peyman Zawar-Reza

Data sets

AntAir: satellite-derived 1km daily Antarctic air temperatures 2003-2016 H. Meyer, M. Katurji, F. Detsch, F. Morgan, T. Nauss, P. Roudier, and R. Zawar-Reza https://doi.pangaea.de/10.1594/PANGAEA.902166

AntAir: satellite-derived 1km daily Antarctic air temperatures since 2003-2016 (monthly means) H. Meyer, M. Katurji, F. Detsch, F. Morgan, T. Nauss, P. Roudier, and R. Zawar-Reza https://doi.org/10.1594/PANGAEA.902193

Hanna Meyer, Marwan Katurji, Florian Detsch, Fraser Morgan, Thomas Nauss, Pierre Roudier, and Peyman Zawar-Reza

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Short summary
Air temperature is an important baseline parameter for terrestrial Antarctica in the context of patterns and processes in climatology, hydrology or ecology. In this paper, we present AntAir, a new dataset of gridded air temperatures in 1 km spatial and daily temporal resolution that is available since 2003. AntAir was created by modelling daily air temperature from MODIS satellite-based land surface temperature using machine learning algorithms and measurements from 70 weather stations.
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