A novel technique of afforestation monitoring with radar vegetation index (RVI) by ALOS-1,2 PALSAR-1,2 data and NDVI by Landsat-5/8 images is proposed. Google Earth Engine cloud platform was used for calculation of annual RVI and average values NDVI for winter (with snow cover) time of 2007-2020 years. The temporal dynamics of the afforestation site is proposed to be evaluated on the NDVI-RVI plane relative to the control areas of coniferous and mixed forests, as well as a treeless area. It is shown that these sites form a movable triangular zone, within which changes in vegetation indices characterize an increase in the projective cover of forest, the growth of aboveground biomass and the replacement/restoration of the prevailing species.
Some results of the development of a technique for determining the undergrowth height from the values range of interferometric phase based on the TerraSAR-TanDEM-X single-pass survey data are presented. The test site is a clearing in the middle of a pine forest along a power line in a mountainous area. Comparison of satellite and subsatellite measurements of the height of young growth at the test site showed the need to take into account the density and breed composition of vegetation.
Estimation of vertical ground displacements due to seasonal periods of freezing and thawing was carried out on the Selenga river mouth using differential radar interferometry. The results of seasonal radar interferometry measurements from 2008 to 2010 have been compared with the survey data for 2011, under the assumption that the seasonal deformation is comparable for different years and lies within the limits of geodetic leveling error. The difference between the interferometric and geodetic measurements is <1 cm in winter months, whereas in summer, as the upper soil moisture content varies, the difference reaches 2 to 2.7 cm. It has been concluded that the moisture content and its profile should be taken into consideration in summer or when choosing the radar interferometry in winter.
Last decades radar-tracking methods of research of terrestrial covers intensively develop. The analysis of polarizing
properties of reflecting covers gives additional opportunities by way of research of spatial structure and scattering
mechanisms, which improves a quality of classification of natural objects. Review of the radar remote sensing data of
Buryatia submitted scanner by the images in a microwave range received by synthesized aperture radars ERS1, ERS2,
JERS and Shuttle with 1994 for 2000 is submitted. The analysis coordinated and cross-polarizing signature for various
areas of a wood, farmland, bogs, water surface has revealed potential opportunities on an illustration polarimetric of
properties of terrestrial objects, and for their classification. Construction of the atlas polarizing signature and their
characteristics in the near future is supposed.
One of the important components of atmospheric air is ozone, which reliably protects the human and the creature on the
Earth from surplus of ultra-violet radiation. As well as all other atmospheric components, the total ozone contents (TOC)
varies on size, both in space, and in time. The character of these variations is formed under influence of a lot of processes
both inside the atmosphere, and under influence of the external factors. The quantity of ozone depends on a lot of various
circumstances: a season, latitude and longitude, conditions of atmospheric circulation, and also on solar and geomagnetic
activity. It is quite probably, that ozone is one of determining climate elements of the top atmosphere, as it participates in
various chemical reactions, determining thermal balance of atmosphere. The significant change TOC entails
infringement of thermal balance, so also the stability of Earth atmosphere, and can cause unpredictable global accidents.
With increase of volume of supervision allowing more and more in detail quantitatively to describe evolution a ozone
layer, there are new certificates that the occurring changes are connected with not only anthropogenous influences, but
substantially with changes of atmosphere circulation.
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