ITIL User Manual Template - Instituto CEDIAC
Contents
1. Related Documents The related documents for MORVOLC are e Grosse P van Wyk de Vries B Petrinovic IA Euillades PA amp Alvarado 2009 Morphometry and evolution of arc volcanoes Geology 37 651 654 e Grosse P van Wyk de Vries B Euillades PA Kervyn M Petrinovic IA 2012 Systematic morphometric characterization of volcanic edifices using digital elevation models Geomorphology 136 114 131 e Grosse P Euillades PA Euillades LD van Wyk de Vries 2014 A global morphometric database of composite volcanoes Bulletin of Volcanology 76 784 Contacts For comments assistance or reporting of errors please contact Pablo Grosse CONICET amp Fundaci n Miguel Lillo Phone number 54 381 4239723 ext 106 E mail pablogrosse yahoo com Leonardo D Euillades Instituto CEDIAC Facultad de Ingenier a Universidad Nacional de Cuyo Phone number 54 261 4135000 ext 2108 E mail leuillades cediac uncu edu ar Pablo A Euillades Instituto CEDIAC Facultad de Ingenier a Universidad Nacional de Cuyo Phone number 54 261 4135000 ext 2108 E mail peuillades cediac uncu edu ar Overview requirements and installation MORVOLC is composed of several IDL programs that are compiled using the IDL version 7 0 1 It also uses external functions from the ENVI software for extracting and or generating DEM derived products MORVOLC supports batch operation mode which is intended for analyzing several cases during a sing2. exaggeration VOLCNAME ProfileMAX gif profile along maximum basal diameter passing through the summit VOLCNAME ProfileMAXnoscale gif profile along maximum basal diameter passing through the summit with vertical exaggeration In the profiles images Dotted blue horizontal line elevation of lowest closed contour within the edifice Dotted blue horizontal line elevation of start of summit region Grey horizontal line lowest volcano elevation Black line profile of computed first degree polynomial base Green line profile of computed TIN base Red line profile of computed IDW base VOLCNAME Shapelndex gif x y graph of elevation vs ellipticity and irregularity indexes VOLCNAME SlopesElev gif x y graph of elevation vs slope elevation values are the top value of the interval with squares mean slope values asterisks median slope values Dashed blue vertical line elevation of lowest closed contour within the edifice Dashed red vertical line elevation of start of summit region Dotted purple vertical line elevation interval within the edifice flank with the highest average slopes VOLCNAME_SlopesHisto gif slope histogram with mean red line and median blue line values
3. if a user defined summit region elevation is used if YES indicate elevation value in summit value summit value user defined summit region elevation when manual summit YES e g 800 volume vol IDW NO YES defines if volume and height from IDW base are computed vol TIN NO YES defines if volume and height from TIN base are computed vol POLY1 NO YES defines if volume and height from polynomial base are computed vol MAX NO YES defines if maximum volume from horizontal base is computed crater crater NO YES defines if a crater outline is used or not ENVI KERNEL kernel size to be used for computing DEM derived slope and shaded relief images e g 3 SHADED RELIEF AZIMUTH azimuthal angle to be used for computing shaded relief and SD images e g 45 SHADED RELIEF ELEVATION elevation angle to be used for computing shaded relief and SD images e g 45 MORVOLC execution Once installed we recommend testing MORVOLC with the supplied test data package Mariana zip in order to verify the correct installation and functionality The procedure for MORVOLC execution is iF Copy morvolc_v1 2 sav input_param txt calcENVIProd pro enviUtilityLib pro main pro and compile go to the programs folder Setup modify the input_param txt file as desired Copy the DEM e g Mariana_UTM55N and DEM header e g Mariana UTMB5N hdr to the images folder Copy the ROI files 6 edifice ROIs and the crater ROIs to the c
4. MORVOLC version 1 2 http cediac uncu edu ar software User Manual Instituto CEDIAC Facultad de Ingenieria Universidad Nacional de Cuyo Centro Universitario Parque General San Martin Mendoza 5500 Argentina Fundacion Miguel Lillo Miguel Lillo 251 4000 San Miguel de Tucuman Argentina CONICET National Scientific and Technical Research Council Argentina July 2014 Table of Contents INTRODUCTION 5 uto ii cid LE Related Documents iii sais T2 A RR 2 OVERVIEW REQUIREMENTS AND 3 DOWNLOADING THE MORVOLC 4 FOLDER AND FILE STRUCTURE treo te tonc kisapoc cori sooo papa not inane escono ase 5 MORVOLC INPUT PARAMETERS eese entes esta tn enean sata enean 6 MORVOLC EXECUTION ehe veta cele f MOHVOLC OUTPUT Oia naaa 1 1 1 2 Introduction MORVOLC is IDL command line application that computes morphometric parameters of volcanic edifices The inputs used by MORVOLC are a Digital Elevation Model DEM and a volcano edifice boundary or outline In depth descriptions and applications of MORVOLC can be found in the documentation indicated in the Related Documents section This document is intended for those who want to install and use the MORVOLC application It contains step by step instructions on how to run it
5. diameter passing through the summit Dashed purple line maximum diameter passing through the edifice outline centroid Dashed yellow line maximum diameter of the edifice outline Orange signs secondary peaks Purple signs secondary holes Orange outline the crater outline only if a crater ROI was used VOLCNAME_PlotShadedRelief gif shaded relief image of the volcano with Black outline the edifice basal outline Blue contour the lowest closed elevation contour within the edifice Red contour the elevation contour defined as the start of the summit region Purple contour when lowest closed contour is equal to summit region contour Orange triangle the summit i e location of highest elevation Black X centroid of the edifice basal outline Yellow outline the crater outline only if a crater ROI was used VOLCNAME PlotSlope gif slope image of the volcano with slope values color coded between 0 and 30 degrees and with White outlines the edifice basal outline the lowest closed elevation contour and the summit region contour Dashed white outline the crater outline only if a crater ROI was used VOLCNAME ProfileEW gif west east profile through the summit VOLCNAME ProfileEWnoscale gif west east profile through the summit with vertical exaggeration VOLCNAME ProfileNS gif south north profile through the summit VOLCNAME ProfileNSnoscale gif south north profile through the summit with vertical
6. downloaded files morvolc v1 2 sav input param txt calcENVIProd pro enviUtilityLib pro main pro and compile go 2 An image folder e g C MORVOLC Images containing the DEM to be processed in ENVI format A contour folder e g C MORVOLC Contours containing the volcano edifice outlines and optional crater outlines in ROI format associated to the DEM 4 A results folder e g C MORVOLC Results where the results will be saved About the DEM and DEM derived files in the image folder The input DEM must be in the ENVI format and have an associated ENVI header file The value type should be either integer or floating point MORVOLC uses DEM derived slope and shaded relief images If these files are not provided MORVOLC calculates them when running for the first time and will save them in the image folder If these files already exist either generated by NETVOLC or by the user the user can copy them together with the DEM in the image folder the files must have the same root name as the DEM and end with slope and shaded relief e g DEMNAME slope and DEMNAME shaded relief About the ROI files in the contour folder The volcano outlines must be in ROI format associated to the DEM The ROI contours can be obtained from NETVOLC or from any other method Each volcano must have its own ROI file the name of each ROI file must end with edif e g VOLCNAME edif roi Optional crater caldera ROI outlines can be copi
7. ed in the contour folder Each crater ROI must be spatially contained within an existing volcano ROI and be associated to the DEM It must have the same root name as the associated volcano ROI and end with crater e g VOLCNAME crater roi MORVOLC input parameters Input parameters associated to MORVOLC are present in the file named input param txt which must be located in the folder where MORVOLC will be executed i e the programs folder The user should setup modify the input parameters as desired before running MORVOLC Description of the input parameters paths path img path of the folder where the DEM file is located e g C MORVOLC Images fileDEM path and name of the DEM file e g C MORVOLC Images DEMNAME dirROl path of the folder where the ROI files are located e g C MORVOLC Contours dirResults path of the folder where the results will be saved e g C MORVOLC Results curves equidist desired equidistance of elevation curves in meters e g 50 equidist type INT FLOAT equidistance value type integer or floating point summit factor factor to determine at which elevation the summit region starts e g 8 min area peak minimum area in pixel units that a secondary curve has to have to be considered the base of a secondary peak e g 1 dif centroid minimum difference between secondary curve centroids in pixel units for consideration as different secondary peaks e g 2 manual summit NO YES defines
8. in Excel are 1 Open Excel 2 Open the txt file the Text Import Wizard will appear 3 In file type options choose Delimited and click Next 4 In delimiter options choose Comma and click Finish The spreadsheet structure is as follows Column A name of parameter Column B value of parameter Column C description of the parameter Column D blank to add comments Columns E to O are arrays of parameters Row 1 array group Row 2 array name Row 3 description of the array Row 4 blank to add comments Rows 5 and down array values in each column The output image files are VOLCNAME_3Dtot jpg 3D image of the DEM portion that contains the processed volcano ROI view orientation is user defined in the input parameters VOLCNAME 3Didw jpg same as above but showing the computed IDW base outside to volcano ROI VOLCNAME PIotKM gif map of the volcano with Thick black outline the edifice basal outline Black contours closed elevation contours within the edifice Gray contours elevation contours that continue outside of the edifice Blue contour the lowest closed elevation contour within the edifice Red contour the elevation contour defined as the start of the summit region Purple contour when lowest closed contour is equal to summit region contour Orange triangle the summit i e location of highest elevation Black X centroid of the edifice basal outline Dashed orange line maximum basal
9. le execution MORVOLC requires a PC or Virtual machine with Linux or Windows operating system and with the ENVI IDL suite version 4 5 or later installed MORVOLC doesn t require a specific installation The main setup and execution steps are 1 Download the MORVOLC package see section 3 2 Create a folder and file structure see section 4 3 Setup modify the input param txt file see section 5 4 Execute MORVOLC IDL see section 6 The results outputs consist in a text file with the morphometric data and several image files for each processed volcano see section 7 Downloading the MORVOLC package The MORVOLC package can be downloaded from http cediac uncu edu ar software The package is distributed as a zip file morvolc_v1 2 zip and contains the following files morvolc_v1 2 sav the MORVOLC programs calcENVIProd pro enviUtilityLib pro main pro compile go a compilation script input param txt a file containing necessary input parameters Mariana zip test data consisting of a DEM of the Mariana volcanic islands and associated edifice and crater outlines 4 Folder and structure Users have to create a folder and file structure The names and paths of the folders will be indicated in the input param txt file see section 5 Within a desired working folder e g C MORVOLC four folders have to be created 1 A program folder e g C MORVOLC Programs containing the
10. ontours folder Open an IDL session In the command line place yourself inside the programs folder where the morvolc v1 2 sav and other files are located by typing e g cd C MORVOLC Programs Compile and restore the MORVOLC programs by typing compile go Execute MORVOLC by typing morvolc A menu will appear with a list of available volcano ROIs the ROIs copied in the contour folder To select the ROIs to be processed type S then type the index numbers of the desired ROIs and then type Q It is possible to select several ROIs for batch processing but note that the input parameters will be the same for all thus if different input parameters are desired e g considering or not considering a crater separate MORVOLC executions must be made for each input parameter setup The results of the execution are saved in the results folder MORVOLC output For each processed volcano the results are saved in the results folder and consist of one text file and 14 image files The name of the text file will be the same as the root name of the ROI file e g VOLCNAME txt and the image files will have this same root name plus a descriptor If a crater ROI was used the names of the output files will have crater added e g VOLCNAME crater txt The output text file is a comma separated text file containing the computed morphometric parameter data It is intended to be opened by and saved as an Excel spreadsheet Steps to open
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