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150 hydrology software manuals

Hydrologic Software from U.S. Army Corps of Engineers are very popular among all the scientists and scholars researching in the field of hydrology modeling.Many new software were also developed based on these Hydrology Engineering Center(HEC) made software models.Surface Water Modeling system provides graphical interfaces to HEC1,HECHMS and HECRAS models. MIKE-SHE also use the basic software framework of HEC to develop their own sophisticated software.In most of the courses regarding hydrology modeling these software were invariably taught due to their wide acceptance through out the world. As usual most of these software are not very easy to learn.You will need either a thorough manual describe the step by step procedure to solve prediction problems or an expert instructor to learn the simulation tools in detail.That is why HydroWeb has compiled a DVD featuring the detail manuals of all the software produced by HEC. The DVD contains 150...

ISIS by Halcrow - Cost effective, integrated river modelling solutions

Nice little software for simulating the uncertainties during abnormal events.Its completely free if you have smalll projects.You have to buy the Paid version for bigger projects. ISIS by Halcrow - Cost effective, integrated river modelling solutions : "ISIS provides engineers, environmental scientists, planners and managers with a flexible and cost-effective range of tools for proactive decision making to help manage our environment. It is a suite of modular software solutions used for simulating water flow, hydrology, water quality changes and sediment transport in rivers, floodplains, canals, estuaries, catchments and urban areas. ISIS is suitable for a wide range of engineering and environmental applications, from calculating simple backwater profiles to modelling entire catchments. Applications include flood risk assessments, developing catchment management plans, flood alleviation scheme designs, river engineering and irrigation schemes, environmental impact assessments, ...

Geomantics IV

About Geomantics : "Your a GIS professional, not a professional 3D artist, but you want to create great landscape visuals for your clients. Or you're a teacher trying to enthuse and educate your students about maps and landscapes. Or your a local historian who wants to see how you locality looked 5,000 years ago. What do you use? GenesisIV. It's landscape software written by professionals for people who've got other things to do than be professional artists. And you won't need a professional budget, because GenesisIV is now free." A nice software to convert your 2d maps to 3d.And above all its FREE

How to save money while purchasing remotely sensed imageries ?

Remote sensing is a procedure which capture images of earth from space which help many people to make scientific conclusion.The capturing image is done by sensors and the sensor is carried by satellites.Depending on the revolution speed and altitude different sensors will capture different images for diff purposes. As for example different satellites will produce imagery which will be useful for some specific scientific interpretations.View the file given in HydroGeeks to see the differences. Some geographic features will be visible in some imagery some will be not.Some examples are given in the HydroGeek blog. If you consider the above infos first and then buy your imagery, your money will be well serve the purpose of your purchase. Mrinmoy www.baipatra.ws

Validate Your Simulations

Model estimation is needed to be compared with the observed data to validate a model.Generally Mean Square Error,Absolute Error,Correlation,Covariance,Standard Deviation,Variance and Efficiency are used to measure the difference between observed and model estimated data set to find the overall validity of the developed model. Helping to Validate Simulations was developed to calculate performance validation criterias(mean square error,actual error etc.). The limitation of the software is given below : 1.Data set Amount maximum of 250 2.You can not copy-paste your data into the software.You must enter each values of your data set into the data entry window. 3.The software is a html page and it will open if you have IE or Firefox.But the problem lies in its size.Its little bit heavy and may take time to open. But if you think that calculating these formulas again and again is more boring than the above 3 limitations, download the software by visiting HtVS (or Right Click and select Save T...