VEGETATION DYNAMICS TREND USING SATELLITE TIME SERIES IMAGERY
نویسندگان
چکیده
منابع مشابه
Analyzing Time Series of Satellite Imagery Using Temporal Map Algebra
This paper presents the application of a set of spatio-temporal satellite image analysis functions based on temporal map algebra. The temporal map algebra functions treat time series of imagery as three-dimensional data sets where two dimensions encode planimetric position on the earth’s surface and the third dimension encodes time. Whereas the conventional local, focal, and zonal map algebra f...
متن کاملEvaluation of land degradation trend using satellite imagery and climatic data (Case study: Fars province)
Introduction: Climate change and human activities have a direct impact on land vegetation. Decreased rainfall and increased temperature are among the climate change factors leading to significant changes in water resources and energy balance in affected areas. On the other hand, human activities such as growing population, overgrazing and land use changes that make change in land conditions, al...
متن کاملEstimation of vegetation cover resilience from satellite time series
Resilience is a fundamental concept for understanding vegetation as a dynamic component of the climate system. It expresses the ability of ecosystems to tolerate disturbances and to recover their initial state. Recovery times are basic parameters of the vegetation’s response to forcing and, therefore, are essential for describing realistic 5 vegetation within dynamical models. Healthy vegetatio...
متن کاملAssessment of land degradation using time series trend analysis of vegetation indictors in Otindag Sandy land
Land condition assessment is a basic prerequisite for finding the degradation of a territory, which might lead to desertification under climatic and human pressures. The temporal change in vegetation productivity is a key indicator of land degradation. In this paper, taking the Otindag Sandy Land as a case, the mean normalized difference vegetation index (NDVI_a), net primary production (NPP) a...
متن کاملMonitoring Vegetation Dynamic in Horqin Sandy Land from Spot Vegetation Time Series Imagery
The changes in the composition and distribution of vegetation represent one of the most main sources of systematic change on local, regional, or global scale. The temporal evolution of NDVI data strongly linked to changes in the state of the surface is regarded as an effective time window able to show the natural seasonal variations. This study investigated vegetation change between 1998 and 20...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
سال: 2019
ISSN: 2194-9034
DOI: 10.5194/isprs-archives-xlii-4-w18-783-2019