Estimation of the Errors of Remote Sensing and Hydrological Model-Based Soil Moisture Values Using Triple Collocation
Öz
Only limited studies in Turkey have focused their attention on soil moisture even though it has a key role in climate, flood, drought and agricultural yield related studies. Estimation of soil moisture product obtained via merging of hydrological model- and remote sensing-based soil moisture data sets is only possible if the errors of the merged products are estimated. Triple collocation methodology has been used in many hydrological studies, yet estimation of soil moisture product errors over Turkey has not been implemented before. In this study, errors of NOAH hydrological model-based and LPRM and ASCAT remote sensing-based soil moisture products are found between 2007-2011 over 10 locations that are considered to have different vegetation covers over Turkey. Results show NOAH hydrological model based soil moisture products have smaller errors on average compared to LPRM and ASCAT products for these 10 locations.
Anahtar Kelimeler
Kaynakça
- 1. GCOS. Implementation Plan for the Global Observing System for Climate in Support of the UNFCCC (2010 update). WMO GCOS Tech. Doc. GCOS-138 WMO-TD 1523, 19.
- 2. Bulut, B., Yılmaz, M.T., 2016. Türkiye’deki 2007 ve 2013 Yılı Kuraklıklarının NOAH Hidrolojik Modeli ile İncelenmesi (Analysis of 2007 and 2013 Droughts over Turkey Using NOAH hydrological model). Teknik Dergi, (kabül edildi).
- 3. Bulut, B., Yılmaz, M.T., Yücel, İ., Şorman, A.Ü., Yılmaz, M., Şimsek, O., 2016. Türkiye’de İstasyonlarda Ölçülen Toprak Nemi Zaman Serilerinin Kalite Kontrolü. Teknik Dergi (hakem sürecinde).
- 4. Bulut, B., Yılmaz, M.T., Sönmez, İ., Şorman, A. Ü., 2014. Türkiye’deki Toprak Neminin NOAH Hidrolojik Yeryüzü Modeli ile İncelenmesi. Second International Drought and Desertification Symposium, Konya, 16-18 September 2014.
- 5. Yılmaz, M. T., Şorman, Ü. A., Sönmez, İ., 2013. Modellenen ve İstasyonlarda Ölçülen Toprak Neminin Karşılaştırılması (Comparison of Modeled and Observed Soil Moisture). III. Türkiye İklim Değişikliği Kongresi, TİKDEK (III. Climate Change in Turkey Meeting) 3 – 5 Haziran 2013, İstanbul.
- 6. Şorman, A. Ü., Yılmaz, M., 2012. Soil Moisture Mapping Using Active Microwave for a Semi-Distributed Hydrologic Model: Case Study in Turkey. International Journal of Civil and Environmental Engineering IJCEE-IJENS Vol:12 No:05.
- 7. Owe, M., de Jeu, R. Holmes, T., 2008. Multisensor Historical Climatology of Satellite-Derived Global Land Surface Moisture. Journal of Geophysical Research, 113, f01002.
- 8. Owe, M., De Jeu, R., Walker, J. P., 2001. A Methodology for Surface Soil Moisture and Vegetation Optical Depth Retrieval Using the Microwave Polarization Difference Index, IEEE Trans. Geosci. Remote Sensing, 39, 1643–1654.
Ayrıntılar
Birincil Dil
Türkçe
Konular
-
Bölüm
Araştırma Makalesi
Yazarlar
M. Tuğrul Yılmaz
Türkiye
Yayımlanma Tarihi
15 Haziran 2016
Gönderilme Tarihi
31 Mayıs 2017
Kabul Tarihi
3 Mayıs 2016
Yayımlandığı Sayı
Yıl 2016 Cilt: 31 Sayı: 1