Aerial Photography to Detect Rill Erosion

1981 ◽  
Vol 24 (5) ◽  
pp. 1168-1171 ◽  
Author(s):  
B. E. Frazier ◽  
D. K. McCool s
2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
S. Wirtz ◽  
T. Iserloh ◽  
G. Rock ◽  
R. Hansen ◽  
M. Marzen ◽  
...  

The present paper is based on several field investigations (monitoring soil and rill erosion by aerial photography, rainfall simulations with portable rainfall simulators, and manmade rill flooding) in southern Spain. Experiments lead now to a closer understanding of the dynamics and power of different soil erosion processes in a gully catchment area. The test site Freila (Andalusia, Spain) covers an area of 10.01 ha with a rill density of 169 m ha−1, corresponding to a total rill length of 1694 m. Assuming an average rill width of 0.15 m, the total rill surface can be calculated at 250 m2 (0.025 ha). Given that, the surface covered by rills makes up only 0.25% of the total test site. Since the rill network drains 1.98 ha, 20% of the total runoff comes from rills. The rills’ sediment erosion was measured and the total soil loss was then calculated for detachment rates between 1685 g m−2 and 3018 g m−2. The interrill areas (99.75% of the test site) show values between 29 and 143 g m−2. This suggests an important role of rill erosion concerning runoff and soil detachment.


2016 ◽  
Vol 106 (8) ◽  
pp. 546-553 ◽  
Author(s):  
Norman HALLERMANN ◽  
Guido MORGENTHAL

2020 ◽  
pp. 409-432
Author(s):  
Oskar Kubrak ◽  
Paulina Kubrak ◽  
Mkrtich H. Zardaryan

During the last years of Emperor Trajan’s reign, the Legio IV Scythica was stationed in the capital of Armenia at that time, Artaxata. It had made its way there within the scope of the Roman campaign against the Parthians. Its presence was immortalised on stamped rooftiles, bricks and a monumental inscription discovered by the southern border of the present-day village of Pokr Vedi. The inscription carved into limestone confirms the building activities of the Roman army. Similar inscriptions were frequently placed on the gates and most important buildings in legionary camps. Polish and Armenian archaeologists undertook a joint search for the supposed camp of the Fourth Scythian Legion in the vicinity of the present-day village of Pokr Vedi, where the above-mentioned construction inscription had been found. The field surveys conducted within the framework of the Pokr Vedi Project were mainly of a non-invasive character. The following were applied: surface prospection, aerial photography, interviews with the inhabitants, scanning of part of the terrain and geophysical measurements done using two methods: electrical resistivity and magnetic measurements. The accumulated data enabled the selection of sites in which survey trenches were located


2017 ◽  
Vol 922 (4) ◽  
pp. 48-57
Author(s):  
V.L. Kashin ◽  
N.L. Kashina

Biographic information about the veteran of geodetic service of the Soviet Union Tamara Aleksandrovna Prokofieva is provided in this article. On January 1, 2017, she turned 96 years old. T. A. Prokofieva’s biography is in many respects similar to destinies of her age-mates who met the Great Patriotic War on a student’s bench. In 1939 she entered the Moscow Institute of Geodesy, Aerial Photography, and Cartography. Since then all her life was connected with geodesy. In this article we use Tamara Aleksandrovna’s memories of a communal flat of the 1930s, peripetias of military years, of the North Caucasian and Kazakh aero geodetic enterprises where she worked with her husband Leonid Andreevich Kashin who held a number of executive positions in geodetic service of the USSR in the post-war time.


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