To the pool, a river is being studied river - is defined on the map. Which part of the river studied (upper, lower, all the river). The origins of a river. Indicate where originates: from the confluence of two rivers, key, lakes, springs, marshes, swamps. These data are drawn from a topographic map as possible large-scale and refined during the campaign. The general direction of flow of the river - a line drawn from the source to the mouth of a river. Also, indicate the direction being taken by the river on the individual, more or less large parts of its course. Estuary. Specify where the river flows (in the lake, sea, another river, lost in the sands, and so on. It specifies how the river flows - as a single stream or several branches, ie, forming a delta. If the delta is studied directly in areas, describe the indications of change in the delta (in the form of the following streams and eroded gullies), to gather information about the clutter of separate arms of the delta logs, etc. Delta is necessary to put a plan of ocular estimation. The total length of river is measured on the map odometer or any other way to measure the broken lines used in the topography. The main tributaries of the lists from the source to the mouth, separate left and right. All found tributaries - rivers, streams, switches and outlets of groundwater - are put at stake, but the most interesting and large screened in the same way as the main river. For information about the regime of the river are collected by interviewing local people. For each phenomenon, which characterizes the regime of the river, to collect the average, the lowest and the highest quality performance. For information, characterizing the regime of the river: 1) the nature of the break-up of autumn - the time of its beginning and end force, whether there are traffic jams of ice, and 2) the time of appearance zaberegov, freeze, and 3) where there are traffic jams of ice, ice, and why, and 4) time for the opening and breaking the ice break-up time, 5) the nature of the spring flood (dates, strength, height, duration standing the highest level after snowy little snow and normal winters, the devastating effects of floods), and 6) whether there are summer and autumn floods from rains, how often do they reach a height and 7) the length and height of the low-water level of the water.
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