Yanmış Orman Alanlarının Belirlenmesi için Uzaktan Algılama Tabanlı Derin Öğrenme Yaklaşımı

Yıl 2025, Cilt: 40 Sayı: 1, 33 - 48, 26.03.2025

Reha Paşaoğlu , Ahmet Ertuğrul Arık , Nuri Emrahaoğlu

https://doi.org/10.21605/cukurovaumfd.1665481

Öz

Bu çalışmada, 5-10 Eylül 2020 tarihleri arasında Hatay'ın Samandağ bölgesinde meydana gelen orman yangınlarının yanık alanları ve şiddeti haritalandırılmıştır. Derin öğrenme, uzaktan algılama ve Sentinel 2 uydu verileri kullanılarak analizler yapılmıştır. Araştırma bölgelerine ait Sentinel 2 uydu fotoğrafları ile derin öğrenme için bir görüntü veri seti oluşturulmuştur. Ardından, derin öğrenme yaklaşımları kullanılarak bir model geliştirilmiş, bu model veri setindeki fotoğraflarla eğitilmiş ve başarıyla test edilmiştir. Sentinel 2'den elde edilen görüntüler, yeni derin öğrenme modelinin sonuçları kullanılarak Normalleştirilmiş Yanma Yoğunluğu (NBR) ve Yanık Alan İndeksi (BAIS2) değerleri hesaplanmıştır. Yangın öncesi ve sonrası bu indeksler arasındaki farklılıkların hesaplanmasıyla Farklı Normalleştirilmiş Yanma Yoğunluğu (dNBR) ve Farklı Yanık Alan İndeksi (dBAIS2) değerleri elde edilerek yangın alanı kategorize edilmiş ve belirlenmiştir. Derin öğrenme yaklaşımı, yanık alan indeksleri ve Orman Genel Müdürlüğü yangın kayıt fişleri karşılaştırılmış ve yeni derin öğrenme modelinin yanmış orman alanlarını belirlemede indekslere göre daha etkili olduğu tespit edilmiştir. Samandağ çalışma bölgesinde, yanık orman alanlarının belirlenmesinde yeni modelin doğruluk oranı %98,36 olarak hesaplanmıştır.

Anahtar Kelimeler

Derin öğrenme, Sentinel 2, NBR-dNBR, BAIS2-dBAIS2, Uzaktan algılama

Remote Sensing-Based Deep Learning Approach for Identifying Burned Forest Areas

Öz

In this study, the burnt areas and intensity of forest fires that occurred in the Samandağ region of Hatay between September 5-10, 2020, are mapped. Analyses were carried out using deep learning, remote sensing, and satellite data from Sentinel 2. With Sentinel 2 satellite photos of the research locations, an image dataset for deep learning was constructed. Then, using deep learning approaches, a deep learning model was developed, trained using the photos in the dataset, and successfully tested. Images from Sentinel 2 were used to produce the Normalized Burn Ratio(NBR) and Burnt Area Index for Sentinel 2 (BAIS2) indices using the results of a new deep learning model. Calculating the Difference Normalized Burning Intensity (dNBR) and Burnt Area Index for Difference Sentinel-2 (dBAIS2) values for the discrepancies between these indices before and after the fire allowed for categorization and determination of the fire area. The deep learning approach burnt area indexes, and General Directorate of Forestry (GDF) fire registration slips were compared, and it was established that the new deep learning model was more effective at locating burned forest areas than the indexes. In identifying the burnt forest areas, the new model has a proportionate accuracy of 98.36% in the Samandağ study region.

Anahtar Kelimeler

Deep learning, Sentinel 2, NBR-dNBR, BAIS2-dBAIS2, Remote sensing

Kaynakça

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