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  • Links – Ricardo Mantilla
    Chapters Published Reports Theses Conference Presentations In Preparation Links Links Personal OpenWebMail Weather Workstations Univ of Colorado CIRES Civ Env Eng IDL Site Licenses Online Tools Integrator Dictionary Mathworld ps2pdf Science Links Terraflow HidroSig Data Sources USGS DEMs USGS Water USGS DLGs Walnut Gulch AZ Goodwin Creek MS US Map Layers Gazetteer Data Formats NetCDF Journals WRR J of Hydrology Online News Google News NYTimes El Tiempo Frontline PBS Online Broadcast Boulder Colorado Total Boulder Open Space Trails Tip Top Guest Ranch Colombia Presidencia Artesanias Colombia in USA Amigos en Colorado Restraurante Trapiche Money Transfer Java Sun Java Blackdown Java Java API Linux Linux ORG Fedora Redhat Cracks Hacks Astalavista Cracks AM LaTeX LaTeX Guide CU Thesis Class Books Amazon BOMC Audio Books Know how in USA Immigration IRS Last modified on January 29th 2013 Posted on January 17th 2013 Home Curriculum Vitae Funding Media Coverage Research MRN Research Group River Network Topology Scaling of Peak Flows Hillslope hydrology Tile drainage Hydraulic Geometry Flood forecasting Inundation Mapping Drone History Drone Test Flight Flight 1 April 26 2015 Flight 2 June 27 2015 Software Developement Real Time Data Aquisition Cuencas Tutorial I Region Selection and Data Download II Creation of a

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/links/ (2015-11-11)
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  • cuencas_splash – Ricardo Mantilla
    Home Curriculum Vitae Funding Media Coverage Research MRN Research Group River Network Topology Scaling of Peak Flows Hillslope hydrology Hydraulic Geometry Flood forecasting Inundation Mapping Software Developement Real Time Data Aquisition Cuencas Tutorial Screenshots Contributors Documentation Databases Data Formats Link Hillslope Decomposition Download or Run Publications Peer reviewed Articles Book Chapters Published Reports Theses Conference Presentations In Preparation Links cuencas splash Cuencas Published January 17 2013 Full size is 413

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/cuencas/cuencas_splash/ (2015-11-11)
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  • Drone History – Ricardo Mantilla
    the same issue as us which is one of the reasons why we are posting this here In the end the solution that worked for us was much simpler than we thought it might be We held the controller so that the top of the wifi was pushed right up next to the camera on the drone maybe a couple centimeters away and then turned everything on In order we turn on the controller then the wifi range extender and then the drone After that everything works fine for us Many people solved this problem in many different ways so we cannot guarantee that this solution will work for you But we do hope it helps The wifi extender is also supposed to work better when flying if it is pointed directly at the drone 2 Another recommendation given by several people has been to always point the antennae on the controller to the right so that it points parallel to the top of the controller We are not sure if this is beneficial or not but it hasn t failed us so far Below we have links to forums where you can investigate issues regarding the setup of your drone and videos that were helpful in teaching us how to set up and fly the drone http www phantompilots com http www djiguys com Forum viewforum php f 49 http forum dji com forum php mod forumdisplay fid 39 Unboxing and preparing to fly Tips for setup and flight accompanied by useful advice This channel has hundreds of videos of tips for using the Phantom and examples of videos taken with the Phantom https www youtube com channel UCDtnOp7jxs OxlHrYw6QTAg Unfortunately the Phantom 2 Vision was crashed in the summer of 2015 Consequently we have acquired the Phantom 3

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/research/inundation-mapping/drone-history/ (2015-11-11)
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  • Drone Test Flight – Ricardo Mantilla
    In Preparation Links Drone Test Flight Flight 1 City Park Iowa City March 30 2015 First flight Practiced controls Explored camera functions Tested drone limits including altitude and lateral distance 400ft legal max altitude Up to 800 900ft depending on surroundings Flight 2 Pentacrest Iowa City March 31 2015 Continued practicing controls Tested night flying good visibility Experimented with extra features Return home function Video capability Set course function Other test flights included Tested around trees Not advisable high risk Tested in high winds Drone corrects against wind to stay in one place safe unless hazards are nearby then not advisable Tested while surrounded by high structures Poor GPS signal low visibility not advisable Tested while walking under drone Good method of extending range Tested close to water 2 3 meters advised for safety buffer Last modified on August 26th 2015 Posted on April 1st 2015 Home Curriculum Vitae Funding Media Coverage Research MRN Research Group River Network Topology Scaling of Peak Flows Hillslope hydrology Tile drainage Hydraulic Geometry Flood forecasting Inundation Mapping Drone History Drone Test Flight Flight 1 April 26 2015 Flight 2 June 27 2015 Software Developement Real Time Data Aquisition Cuencas Tutorial I Region Selection and

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/research/inundation-mapping/drone-test-flight/ (2015-11-11)
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  • Flight #1 – April 26, 2015 – Ricardo Mantilla
    ft English River Kalona Second site visited Same levels as on Google Earth Tree cover limited view of shorelines on Google Earth Not many landmarks using bridge supports in pictures as references didn t work because they can t be seen on Google Earth Data 12 15pm Discharge 1 930 ft 3 s Stage 9 97 ft Old Man s Creek Iowa City Third site visited Recently built bridge messed up view on Google Earth River isn t the same now as it was on Google Earth Previous satellite images exist with old bridge but the river was shaped differently Still a fairly accurate outline Same problem with landmarks as the previous site Data 1 00pm Discharge 245 ft 3 s Stage 4 71 ft Clear Creek Coralville Fourth and final site of the day River was very close to Google Earth levels Tree cover was limiting factor on both Google Earth and drone pictures Still fairly accurate drawing Data 1 45 Discharge 97 ft 3 s Stage 2 47 ft Today s Conclusion This procedure definitely has potential to track flood levels Higher water levels will make it easier to find landmarks to mark the outline of the levels so many of the problems we experienced today won t be as much of an issue Google Earth definitely has limitations but it looks like it will work pretty well Tree cover takes off a level of accuracy and flying over trees during a flood would definitely make it very difficult to find the water line let alone notable landmarks The opacity setting on Google Earth is very useful because it allows you to kind of see what is underwater Last modified on August 26th 2015 Posted on August 25th 2015 Home Curriculum Vitae Funding Media Coverage Research MRN Research

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/research/inundation-mapping/flight-1/ (2015-11-11)
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  • Flight #2 – June 27, 2015 – Ricardo Mantilla
    actually observed as wet Raccoon River West Des Moines Isolated trees and buildings reached by water were excellent reference points Wet areas observed by drone yellow compared with wet areas forecasted by model blue with 27 5 in Model forecasted water lines reaching regions above was possible to assert with drone photos Data 11 20 am Discharge 48 300 ft 3 s Stage 28 56 in Legend for inundation maps Blue verified wet areas Black blind areas due to obstacles trees overpasses etc Red model expected wet area actually observed as dry Conclusion As observed in Flight 1 tree coverage results in lower accuracy on delimitation of water line In some situations taking perpendicular photos can be helpful for that propose We did not find a way to obtain the angles vertical and horizontal in which each photo was taken but the coordinates automatically registered meta information of each photo that allowed photos when imported into a Picasa web album to be geo located automatically making it easy to recognize each group of photos important on a trip in which 8 stops were made consecutively and the amount of images obtained was huge The use of drones along with the Google Earth capability of generating polygons to represent the water line and its overlaying with the waterline generated by flood models allows a fast way to assess the model s accuracy Sometimes it is possible to observe a different color of grass on Google Earth were the water line in flooding reaches due to moisture above a common level It was possible to check that most of the waterlines forecasted by models were positively assessed on aerial photos Tips for future flights on assessing water lines at flood events Take 4 or more orthogonal photos at each point so a

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/research/inundation-mapping/flight-2/ (2015-11-11)
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  • I. Region Selection and Data Download – Ricardo Mantilla
    in the bounding boxes LAT Bottom 38 01 10 Top 38 07 10 LON Left 96 57 42 Right 96 51 08 Click on the Select Area button This will launch the SDDS Request Summary Page Go to step 3 to complete the download process If a window doesn t pop up you may have the Pop Up blocker feature active If you are using FireFox double click the window icon at the bottom left of the navigator and select Unblock Popups from this site Instructions using Internet Explorer are available online Defining region using the graphic tools This method requires more time but it s very useful if you have doubts about the region covered by the basin you are interested in processing On the Seamless website select the link image that points to View and Download United States Data Once the software has loaded begin by zooming in the area of interest The figures below should give you an idea of the zoom levels for the Burns Creek basin Zoom Level 0 Zooming on Kansas Zooming on Kansas Zoom Level 1 Zooming on Emporia Region Zooming on Emporia Region Zoom Level 2 Zooming on Burns Basin Zooming on Burns Basin Zoom Level 3 Final zoom level Final Zoom Level On the Display tab on your right expand the Hydrography menu and select the National Atlas and NHD Streams box Your image should now look like this Now select the icon Define Download Area and create a bounding box containing our basin as shown in the figure below Use the coordinates displayed in the status bar at the bottom of the navigator window as a guide and create a box with the following coordinates Upper left corner 83 12 96 95 and lower right corner 38 02 96 84 Define download area When you finish creating your selection box the SDDS Request Summary Page will launch Go to step 3 to complete the download process Getting data from the SDDS Request Summary Page If you got to this point it means that you are ready to download the area that you defined either by entering the coordinates or by graphically selecting the region Notice that if a window hasn t pop up it means that you have the Block Pop Ups feature of your navigator active If you are using FireFox double click the window icon at the bottom left of the navigator and select Unblock Popups from this site If you are using Internet Explorer follow this link for directions On the SDDS Request Summary Page window shown below click the Modify Data Request link Modify data request The SDDS Request Options Page shown below appears Select the options that indicate the kind of data that you want to download and the data format THIS IS A CRITICAL STEP IN THE PROCESS SDDS Request options page Select the National Elevation Dataset NED 1 Arc Second box and deselect all other boxes Also select the BIL option in the

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/cuencas/tutorial/55-2/ (2015-11-11)
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  • II. Creation of a Database – Ricardo Mantilla
    Presentations In Preparation Links II Creation of a Database Now that you have download some data we will proceed to create an populate our Hydrologic Database Follow this steps to create a new database Create a new empty directory called Test Database wherever is convenient for you use a directory different to the one where you downloaded the data It is a good idea to create it in a place that you can access later Ask the system administrator for a place where you can keep files Open CUENCAS If you are in Bechtel lab go to start All Programs Geothechnical Tools CUENCAS Select the menu File Create New Database Once the file selection form pops up find and select the directory Test Database that you created in step 1 Maximize the CUENCAS window Last modified on January 18th 2013 Posted on January 17th 2013 Home Curriculum Vitae Funding Media Coverage Research MRN Research Group River Network Topology Scaling of Peak Flows Hillslope hydrology Tile drainage Hydraulic Geometry Flood forecasting Inundation Mapping Drone History Drone Test Flight Flight 1 April 26 2015 Flight 2 June 27 2015 Software Developement Real Time Data Aquisition Cuencas Tutorial I Region Selection and Data

    Original URL path: http://www.iihr.uiowa.edu/rmantilla/cuencas/tutorial/creation-of-a-database/ (2015-11-11)
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