Directions to hydrological observations

Any place to stay for observation (the so-called station) must have a serial number. Numbering is from the station, where began the study of rivers. For the station selected places sharpest contraction and expansion of the valley and river, large natural barriers (waterfalls, rapids, big rapids, etc.) as well as downstream from the mouths of major rivers and tributaries investigated in the alleged waterworks. At each station produced sounding the width of the river, taking samples of soil DNA, a description of the valley and the river bed. Water consumption is determined in those cases where the surveyed river flows into a major tributary, and in places where the proposed construction of hydraulic structures. Place station, which is the definition of water flow must meet the following conditions: a) at the site of at least four to five times the width of the river, and the broad rivers - not less than the width of the river channel should be relatively straightforward, with relatively equal uniform width and depth, and b) channel, if possible, should be free of aquatic vegetation, IIlyvuschih chips, litter, and c) on the river above and below, especially stgptsii there should be no temporary man-made structures and obstacles (clusters of rafts, debris and wood etc.). Work on the station begins with determining its location. It must be stated on the map and in the diaries as well, so you can quickly find on the ground to those who need to visit it later. Therefore, the location of the station is usually linked to some prominent landmark, designating it in a field diary. After causing a corresponding number station locations on the map under the same number of particulars entered in the field diary. First, in a diary written overview of the station. Then, at least for those or other works are filled with tables, made the necessary description. Moleno use the following form to record general information on the station, the results of depth and so on Interview with local communities should determine what level (usually very low, increased very high) corresponds to the level of water during the work on the station, and in the field diary to record the position of the water surface in relation to some prominent landmark (a mark on the pole in the water, pile, abutment of a bridge or a dam or a notch on a tree, stake at the bank) above water level. Conducting interviews with local people should first talk with persons involved in the working conditions of the river: agronomists, land improvement, light keeper, fishermen, workers Rafting and river fleet, the ferryman, carriers. Should not be limited to questioning one person. Telling them to check the information in a conversation with two or three witnesses. This eliminates any inaccuracy, subjectivity is the story of a local resident. When it detects minerals to be described in the diaries location, nature of occurrence of the field, survey the local population to find out whether this was carried out exploration, whether it was developed first and how to use now.