Examination of the Effects of Climate Change on Türkiye through the Google Earth Engine Platform
Öz
The objective of this research is to assess the effects of climate change on Türkiye by utilizing data catalogues provided by the Google Earth Engine (GEE) cloud-computing platform. The utilized data catalogues encompassed precipitation, Land Surface Temperature (LST), EvapoTranspiration (ET), Potential EvapoTranspiration (PET), Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Vegetation Condition Index (VCI), and Forest Area Loss (FAL). Data spanning the years 2001-2022 were collected, and analyses were conducted separately for seven geographical regions of Türkiye on both an annual and seasonal basis. Initially, trend analysis techniques were applied to the individual data sets, followed by an examination of correlations among them. Notably, significant decreasing and increasing trends were observed in annual precipitation and LST data in the Eastern Anatolia region, respectively. Furthermore, a significant increasing trend was identified in annual ET data across all regions except Eastern Anatolia. Conversely, significant increasing trends were noted in annual PET data in Eastern Anatolia and the Aegean regions. Additionally, significant increasing trends were discerned in annual NDVI, EVI, and VCI data across all regions. Experiments revealed that the ET exhibited robust correlations with the NDVI (0.77), EVI (0.79) and VCI (0.81). Furthermore, the NDVI demonstrated strong correlations with EVI (0.99) and VCI (0.96).
Anahtar Kelimeler
Climate change, Remote sensing, Google Earth Engine
Destekleyen Kurum
Scientific and Technological Research Council of Türkiye (TÜBİTAK)
Teşekkür
This study was derived from the B.Sc. thesis of the first author Eren Erdogan and was also supported by the 2209-A - Research Project Support Programme for Undergraduate Students of the Scientific and Technological Research Council of Türkiye (TÜBİTAK) with application no: 1919B012208802.
Kaynakça
- Aksay, C. S., Ketenoğlu, O., & Latif, K. (2005). Küresel Isınma ve İklim Değişikliği. Selçuk Üniversitesi Fen Fakültesi Fen Dergisi, 1(25), 29–41.
- Alhaji, U. U., Yusuf, A. S., Edet, C. O., Oche, C. O., & Agbo, E. P. (2018). Trend analysis of temperature in Gombe state using Mann Kendall trend test. Journal of Scientific Research and Reports, 20(3), 1–9. https://doi.org/10.9734/JSRR/2018/42029
- Başaran, N. (2021). Orman Alanları Değişimlerinin Google Earth Engine ile İncelenmesi: Akdeniz Bölgesi Örneği [Yüksek lisans tezi, Eskişehir Teknik Üniversitesi]. YÖK Ulusal Tez Merkezi. https://tez.yok.gov.tr/UlusalTezMerkezi.
- Başoğlu, A., & Telatar, O. M. (2013). İklim değişikliğinin etkileri: tarım sektörü üzerine ekonometrik bir uygulama. Karadeniz Teknik Üniversitesi Sosyal Bilimler Dergisi, 6, 7–25.
- Bolch, T. (2007). Climate change and glacier retreat in northern Tien Shan (Kazakhstan/Kyrgyzstan) using remote sensing data. Global and Planetary Change, 56(1-2), 1–12. https://doi.org/10.1016/j.gloplacha.2006.07.009
- Çelik, M. A. (2016). Bitki indeks modelleri (NDVI, EVI, VCI) kullanılarak Akdeniz bölgesi’nde kuraklık analizi (2000-2014) [Doktora tezi, Kahramanmaraş Sütçü İmam Üniversitesi]. YÖK Ulusal Tez Merkezi. https://tez.yok.gov.tr/UlusalTezMerkezi.
- Dabbagh, D. K. O. (2021). Monitoring temporal dynamics of drought phenomenon using remote sensing satellite imagery in Erbil-Iraq-Plain districts [Doctoral dissertation, Harran University]. Council of Higher Education Thesis Center. https://tez.yok.gov.tr/UlusalTezMerkezi.
- Demirbaş, M., & Aydın, R. (2020). 21. Yüzyılın en büyük tehdidi: küresel iklim değişikliği. Ecological Life Sciences, 15(4), 163–179.
- Eken, M., Ceylan, A., Taştekin, A. T., Şahin, H., & Şensoy, S. (2008). Klimatoloji II. DMİ Yayınları.
- El-Shirbeny, M. A., Biradar, C., Amer, K., & Paul, S. (2022). Evapotranspiration and vegetation cover classifications maps based on cloud computing at the Arab countries scale. Earth Systems and Environment, 6(4), 837–849. https://doi.org/10.1007/s41748-022-00320-2
