TOPOGRAPHY CHANGE PROCESS AT THE ABUKUMA RIVER MOUTH

An extensive reef system at the Amazon River mouth

Large rivers create major gaps in reef distribution along tropical shelves. The Amazon River represents 20% of the global riverine discharge to the ocean, generating up to a 1.3 × 10(6)-km(2) plume, and extensive muddy bottoms in the equatorial margin of South America. As a result, a wide area of the tropical North Atlantic is heavily affected in terms of salinity, pH, light penetration, and se...

Assessing the Quality Change of Some Parameters of Karun River Water at a Four -Year Interval

Surface water resources, especially rivers, are at risk more than other sources for the reason of many uses. This study aims to examine some quality parameters of Karun river water in the Gotovand spatial range to Ahwaz during the years of 2010-2013.The data investigated in this study were obtained from the annual mean biochemical parameters measurements at nine sampling stations at the Water A...

Interactions of Waves and River Plume and their Effects on Sediment Transport at River Mouth

SAR interferometry at Venus for topography and change detection

Since the Magellan radar mapping of Venus in the early 1990’s, techniques of synthetic aperture radar interferometry (InSAR) have become the standard approach to mapping topography and topographic change on Earth. Here we investigate a hypothetical radar mission to Venus that exploits these new methods. We focus on a single spacecraft repeat-pass InSAR mission and investigate the radar and miss...

Diurnal Distribution of Phytoplankton From a Single Station at the Mouth of the James River

Eight sets of water samples were taken to a depth of 36 ft during a 24 hr period. A homogeneity was found in the vertical distribution of the total phytoplankton in samples from 7 of the 8 hydrocasts. Skeletonema costatum and Asterionclln japonica were the most numerous phytoplankters in every sample, with the majority of their counts each exceeding 500,000 cells per liter. A twenty-four-hour s...