Mapping and assessing forest fire severity using remote sensing indices: A case study of Tizi Ouzou, Algeria

Fouzia Boudjemline

doi:10.3986/AGS.14459

Avtorji

Fouzia Boudjemline Teacher Education College of Setif (ENS), Setif, Algeria https://orcid.org/0009-0002-7071-962X

DOI:

https://doi.org/10.3986/AGS.14459

Ključne besede:

gozdni požar, daljinsko zaznavanje, temperatura površine tal, NDVI, dNBR, Tizi Ouzou, Alžirija

Povzetek

V sredozemskih pokrajinah so gozdni požari vedno resnejši zaradi naraščajočih temperatur in suše, kar poudarja potrebo po hitri oceni stanja po požaru. Ta študija uporablja posnetke Landsat-8 za oceno učinkov gozdnih požarov poleti 2021 v regiji Tizi Ouzou v Alžiriji. Izračunali smo normalizirano razmerje požarne prizadetosti (NBR) in njegovo razliko (dNBR) iz posnetkov pred požarom in po njem ter analizirali normalizirani indeks razlike vegetacije (NDVI) in temperaturo površine tal (LST), da bi ocenili izgubo vegetacije in toplotni odziv. Rezultati kažejo, da je bilo zelo prizadetih 24.700 hektarjev (~6,7 %), 55.200 ha (14,9 %) zmerno do zelo prizadetih in 94.500 ha (25,5 %) zmerno do malo prizadetih. Rezultati poudarjajo pomen kombiniranja spektralnih in toplotnih indeksov za oceno posledic gozdnih požarov, saj ponujajo smernice za obnovo in upravljanje.

Prenosi

Podatki o prenosih še niso na voljo.

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