149 results about "River mouth" patented technology

The invention relates to a movable type plant floating island chain applicable to an estuary of the lake. A series of floating island monomers are connected by an antiseptic rope to form a floating island chain, wherein the head end of the floating island chain is fixed to a shore, and the tail end of the floating island chain is controlled by retracting and releasing a rope system, so that the floating island chain is arranged along the full section of a riverway during the non-flood discharge period, and is moved to the shore to be fixed during the flood discharge period or high wind. The movable type plant floating island chain has the advantage that: the capacity of purifying the floating islands is improved by planting aquatic plants with a function of purifying water quality on a carrier and collocating with biological filter bulb fillers hung in a hexahedral frame on the lower part of a floating bed through the aquatic plant purification technology and biomembrane technology. A series of floating island monomers are connected together to form the movable type plant floating island chain of which the head end is fixed and the tail end is movable, so the movable type plant floating island chain can be arranged along the full section to purify the water quality fully and also can be moved to the shore during the flood period without influencing flood discharge; and the relation of the improvement of the water quality and the drainage of the flood discharge is coordinated, navigation channels are reserved in the riverway to meet the demands for shipping, so the movable type plant floating island chain is suitable for the purification of the water quality at the estuary of the lake and ecological restoration.

The invention discloses a river mouth salt tide forecasting method based on tides and runoff. The method specifically comprises the following steps of A00, parameter selection, B00, parameter quantization, C00, estimation of salinity and a tidal range statistic model, D00, initial estimation of the salinity and a runoff volume statistic model, E00, initial estimation of a salinity statistic model, F00, correction of the salinity statistic model, G00, obtainment of a salinity forecasting model. According to the river mouth salt tide forecasting method based on tides and runoff, the salt tide upstream forecasting model based on chlorosity and the relation of the runoff and the tidal range is established, forecasting can be achieved 1-7 days ahead of schedule, and middle or short term salt tide forecasting is achieved; the forecasting model only has one main unknown runoff parameter, the complex problem of salt tide forecasting is simplified, and the method has the outstanding advantages of being simple, convenient and practical.