دورية أكاديمية
Using open-source software GRASS GIS for analysis of the environmental patterns in Lake Chad, Central Africa
| العنوان: | Using open-source software GRASS GIS for analysis of the environmental patterns in Lake Chad, Central Africa |
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| المؤلفون: | Lemenkova Polina |
| المصدر: | Die Bodenkultur, Vol 74, Iss 1, Pp 49-64 (2023) |
| بيانات النشر: | Sciendo, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Environmental sciences |
| مصطلحات موضوعية: | sahel, remote sensing, geoinformation, cartography, scripting language, sahelzone, fernerkundung, kartografie, programmiersprache, Environmental sciences, GE1-350 |
| الوصف: | Lake Chad, situated in the semi-arid region of African Sahel, plays a vital role in hydrogeological balance of regional ecosystems. It presents an essential water source and provides a habitat for rare wildlife species including migrating waterbirds. However, the lake has shrunk significantly since the 1960s and has continued to reduce in size and extent during recent decades. Trends in drying and shrinking of Lake Chad are caused by environmental factors and changed climate. The desiccation of the lake is threatening environmental sustainability. This study focused on identification of changes in the Chad Lake area, wetland extent, and associated land cover types. The methods include the Geographic Resources Analysis Support System (GRASS) Geographic Information System (GIS) for remote sensing data classification. The maximum likelihood discriminant analysis classifier was applied for analysis of multispectral Landsat 8–9 OLI/TIRS images in 2013, 2017, and 2022. Detected changes in land cover types reflect variations in water balance and wetland area and extent around Lake Chad over recent decades. Cartographic scripting tools of GRASS GIS provide an efficient method of digital image processing for monitoring endorheic lakes of Central Africa. GRASS GIS methods provide an opportunity to automatically classify Earth observation data with cartographic scripts for environmental monitoring. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | German English |
| تدمد: | 2719-5430 |
| العلاقة: | https://doaj.org/toc/2719-5430Test |
| DOI: | 10.2478/boku-2023-0005 |
| الوصول الحر: | https://doaj.org/article/d382cab935b54e2487fb9182b5dd966cTest |
| رقم الانضمام: | edsdoj.382cab935b54e2487fb9182b5dd966c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 27195430 |
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| DOI: | 10.2478/boku-2023-0005 |