کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8054767 1519493 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Singularity maps applied to a vegetation index
ترجمه فارسی عنوان
نقشه های تکینتی به یک شاخص پوشش گیاهی اعمال می شود
کلمات کلیدی
خشکی، شاخص رشد گیاه سنجش از دور، مولتی فرکتال، نقشه تکینتی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
Drought can be highly localised, and several authors have recognised the critical role of the spatial variability. Therefore, it is important to delimit areas that will share NDVI statistical distributions and in which the same criteria can be applied to define the drought event. In order to do so, we have applied for the first time in this context the method of singularity maps commonly used in localisation of mineral deposits. The NDVI singularity maps calculated for each season and different years are shown and discussed in this context. For this study we have selected a region that includes the whole Autonomous Community of Madrid (Spain). The resulting singularity maps show that areas where the NDVI follows theoretically a spatial normal/log-normal distribution (α≅2) are widely scattered in the area of study and vary across seasons and years. Therefore, the extrapolation of normal/log-normal NDVI statistics should be applied only inside these areas.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosystems Engineering - Volume 168, April 2018, Pages 42-53
نویسندگان
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