Text - Water Management
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1. Figure 24 Unimpaired Flow Regime Pre dam e Lets examine the pre dam period Select the Zoom tool magnifying glass and draw a rectangle over the hydrograph between 1912 1927 17 To be turned in e Display a figure like figure 25 e Notice the shape of the annual hydrographs Do you notice something different during the period 1923 1924 Any guesses why e Describe how this graphic relates to Figure 2 4 of Rivers for life e If you zoom in to an specific year let say 1924 does this figure is similar to figure 1 4 of rivers for life What Flow elements are present in this hydrograph American River Blw Folsom Environmental Flow Components 1905 2013 Bal Ss E Gi CH pa D Ed Hl Di LS LS 2 y s S 3 z i e CH Ka g AGSNIRRZ STETI VAA RA BT Aor FRE a ee BR PG ee eis vii Figure 25 Now we will examine the parameters that were used to calculate the Environmental Flow Components From the Graph menu select Edit Analysis Parameters 18 IHA71_En gt v IHA Graph Options Chart Properties Edit Analysis Parameters View Project Window View Hydro Data File m View Tables View Open Graphs New Graph Save Copy to Clipboard Print Preview Print Export Close SW EN Roanoke _River_ dified 2 21 2014 5 40 PM Size 8 28 MB Figure 26 The follow window warns you that certain parameters can2. Non Farametric IHA Scorecard d 3 American River Blw Folsom H 5 Pre4mpact period 1905 1955 51 years 6 NormalizationFactor 1 T Mean annual flow 3717 g Non Normalized Mean Flow 3717 g Annual C V L 10 Flow predictability 0 4 11 Constancy predictability 0 39 12 of floods in 60d period 0 39 Flood free season Parameter Group 2 33 1 day minimum 124 916 5 24 3 day minimum 146 3 948 7 25 7 day minimum 166 7 1001 J36 30 day minimum 214 4 1116 37 90 day minimum 470 7 1519 30 1 day maximum 29800 9765 39 3 day maximum 22170 9187 40 7 day maximum 15570 8399 4 30 day maximum 11100 6871 43 90 day maximum 8297 5142 43 Number of zero days 0 D Hidd PH ann A sco tva baw 4 pct daily efcs fdc meg Figure 41 To be turned in e Export the data highlighted in Figure 41 to excel and create a graphic like the following How the median flows has changed Has it shifted Has it been reduced 29 Insert Page Layout Formulas Data Review View Developer Add ins Acrobat Cut i r z B amp Calibri i TA y SS per Wrap Text General SG S oe Acap A a e Se geass amp gt lt J Format Painter RS 2 SH Formatting as Tabl Clipboard r EI Number Fa Alignment Pre Post Parameter Group 1 October _ 392 1980 November 574 1980 is December 940 2055 19 January 1580 1985 20 February 3830 2750 21 March 4580 3570 22 April 8095 2908 29 May 8320 2925 24 Ju
3. RS Deeg A Libranes i Documents 7 My Decurnents A Duke Documents ei Music ke Pictures H videos P Computer E Windows OS CH a KINGSTON D of LAR CL of METRO MI oe EPOX he a IHA Die Appl rman a4 ik Libraries e Documents Mu Documents amp HATI En gek ec Share with e E D nodded DO 9213 AM E mail Hew fodder Ge ER Documents library SCH HATI Ca Narre Date modified ype Lo Reineke rrer HN DANTA igs UIRE IEL AM UTS Fils SI Readrne 1 Lili AMA l kens VAJAMI TM AM E Braaeke River NE OOOO zong LAST AM Miergznft E mav KLIJ 1 18 Help file O THANT GID A120093 1 15 AM DI Lo THAW Tits iL 118 AA FTS File oO HA TAA 208 PA H MI eng ALOI 1 18 AM CAT File Ara THAT ILMA H5 AM Applicatis KC Batehfor 10 20 2009 10 PM Appicatic Zi II Tuberia NZ SALI LAIS PM Adobe Ac SC HA Manuel Vi 1 MAWAL WAM Adobe Date created 22 4014 Ap PM arr Bas ME Figure 2 e You will see the following window below Click cancel Before running the wizard a working directory needs to be set If this is not done the software will give remind you to do so before starting an analysis Bed Indicators of DEES HEES IHA Options Window Help Welcome to Welcome to the IHA To conduct IHA analysis you will need to Import hydrologic data into a Hydrologic Data file Set up an analysis Project Set up and run an Analysis View results tables and graphs For users unfamiliar w
4. t be changed with the graphs opened e Click OK to continue Because You curently have graphs andor tables open for this Analysis you will not be able to switch bet eer one period and two period analysis parametric and non parametric statistics one season and two seasons for EFC parameters In order to make such changes you will need to first close all graphs and tables related to this Analysis Iw Continue to display this notice Help Figure 27 e In the Analysis Properties window activate the Environmental Flow Components tab 19 SS al Analysis Properties for BelowFolsomDam Environmental Flow Component EFC analysis computes statistics for up to five different flowy components Extreme Low Flows Low Flows High Flow Pulses Small Floods and Large Floods f vou wish this analysis may be performed for ban separate seasons see Analysis Days tabl The parameters used to define EFCs can be set below Use Advanced Calibration Parameters Initial High Flow Low Flow Separation Al flows that exceed 75 00 pA E of daily flows for the period ze Will be classified as High Flows All flows below this level will be classified as Low Flows High Flow Pulse and Flood Definition w A small flood event is defined as an initial High Flow with a peak flow greater than 2 00 pA year tetum interval event w A lange flood event is defined as an initial High Flow with a peak flow greater thant 0 00 pA
5. year return interval event All initial high flowe not classitted as Small Floods or Large Floods will be classified as High Flow Pulses Extreme Low Flow Definitio i An Extreme Low Flow rs defined as an initial low flow below 0 00 pA E of daily flows for the period All initial low flows not classified as Extreme Low Flows will be classified as Low Flows Figure 28 The Environmental Flow Components tab allows you to modify parameters used in the algorithm that calculates Environmental Flow Components such as how small and large flood events are defined e Click Cancel to return to the graph Impaired Flow Regime Post dam Select the Zoom Out to Full Extent button magnifying glass to see the entire flow record Draw a rectangle around the hydrograph between 1966 1979 Note that the base flow 1s considerably higher than in the pre dam hydrographs This is due to water releases from the Folsom Reservoir 20 ronn of Hytrotage Ateston Pre Amem Enem Betz wrtier 1 ian Fiver Be F Envecneveral Fi Comporents 1905 2213 GG Doph Optom Window ticlp PBA KA Amencan River Blw Folsom ni Se fm Environmental Flow Components 1905 2013 Lary Moots Figure 29 To be turned in e A graph like Figure 29 from 1966 to 1979 e Could you explain why the flow pattern is different that Figure 25 What flow elements are missing Which flow elements are more abundant Take a look at Figure 1 5 and 4 2 of Rivers fo
6. ESM 121 Water Science and Management Spring 2015 Exercise 6 Flow Regime Analysis Ge Samuel Sandoval Solis PhD Contents KEE 3 TIRE OE EE 4 ORE Abe Kette eege 5 VANE ACS homey of A 0 217 eeben 6 Proj crand Analisi gt SU SEP eip E E a 7 Data Interpretation EE 16 n ye EE 16 E eko e Flow Remic Preodi E 16 Timp aired Fow a me KE EE 19 Ree a E EET ea esac erecta fea vere E va pect pesca coc isha cape eae ee cue A 20 Annual unimpaired hydrograph ccccccccccccccccececeeeeeeeeeeeeeeeeeeeeeeeeeeeeeEEEEEEEEEEEEEEEEEEEEEEEEEEEE EERE EEEY 21 Annual LAO i Ree AD EE 22 EGRET 24 Flow Duration Curry 6S veicecaainadsscassasiootedeacdanoscinadatosea be tedeas ue eg ergeet ee geg bege 26 Objective The aim of this tutorial is to gain a general understanding of how to use the Indicators for Hydrologic Alteration IHA software to evaluate pre and post altered flow regimes The flow regime in the American River prior and after the construction of the Folsom Dam is used as case study Introduction The American River in runs 119 miles 192 km from its headwaters in the Sierra Nevada to its confluence with the Sacramento River in Sacramento CA As part of the Central Valley Project the Folsom Dam was constructed in 1956 for the purposes of flood control hydroelectricity and irrigation and municipal water supply We will be using the IHA software to analyze flow data below the Folsom Dam at the USGS Fair Oaks s
7. alyzed by dragging the sliders at the far left and far right 1305 1955 Select the portion of the Fost Impact pernod to be analyzed by dragging the sliders at the far left and Far right 1956 2013 x Cancel Back Figure 17 e Select Non Parametric Statistics and click Next The JH can calculate statistics in one of two ways Parametric statistics in which the data are charactenzed by a mean and standard deviation Non parametric statistics in which the data are characterized by median and percentiles Which type of statistics would you preter to use Parametric Statistics Ce Won Parametric Statistics See Help for a further description of the difference between parametic and non parametric statistics in IHA outputs x Cancel Back Figure 18 e Type in a title to display on the output tables and graphs for example American River below Folsom 14 Analysis Wizard Page 6 Please supply a title to display on the output tables and graphe of this analysis 4Amerncan Arver Ble Folsom x Cancel Back Figure 19 e The next window reminds you that there are other custom setup options available Continue with the analysis by clicking Next Later in the tutorial we will show you how to edit analysis parameters Figure 28 The choices you have made are only the most commonly used The IHA has a number of other capabilities For instance you may Specify a shorte
8. am Americ gd HA Graph Options Window Help HERR OK BS M October 1905 1955 fF October 1966 2013 American River Blw Folsom Flow Duration Curves 516 vi Figure 38 m Ereycee ka Hydro Data FairOaks lee XX SSS wl lt a ol FlowD ate 9 2 2013 9 3 2013 9 4 2013 9 5 2013 9 6 2013 9 7 2013 9 8 2013 9 9 2013 9 10 2013 9 11 2013 9 12 2013 9 13 2013 9 14 2013 9 15 2013 9 16 2013 9 17 2013 9 18 2013 9 19 2013 9 20 2013 9 21 2013 9 22 2013 21 HEAQOKeS American River Blw Folsom Flow Duration Curves F October 1805 1865 M W October 1664 2012 8 a g 2 DG a 0 08197 LL AS SCC K baw Zei daly ates tide kmo Figure 39 e Activate the Project window Right click on View Results and select View Tables Sethu L wp mm a k bel CIA Hep Project Definition Analysis List _AnalysisName Last Ecited Date 2 21 2014 6 30 25 PM BelowFolsomD am 2 21 2014 6 30 28 PM New Analysis Edit Analysis Run Analysis View Rep ste Analysis View Tables a 1905 1912 1920 1928 1936 1944 1952 a e View Saved Graphs Figure 40 e Select the sco worksheet to see the median pre and post dam flow values 28 al Indicators of Hydrologic Alteration Spreadsheet AmericanRiverProject IS THA Spreadsheet Edit Insert Configuration Options Al5x C30 Cell tet A ee mo
9. he FairOaks txt file provided with this tutorial In the Import Dialog select Use all data and cfs cubic feet per second then click OK Ed Import Dialog loj x The IHA has determined that your hydrologic data is in generic two column format Before importing please answer the following questions If Records are present that oer denote missing data what TPR RES value is used What are the units of flow cts cubic feet per second cms cubic meters per second See Help for further description of this data format X Cancel Help Figure 6 e STEP 2 Click OK to name your Hydro Data File FairOaks While this tutorial only uses one data set multiple data sets can be added to your project 10 Step 2 i to give a name to your Hydrologic Data File Click OK to name your file M Cancel Figure 7 x Cancel Figure 8 e STEP 3 Click OK to create an analysis Project that is linked to your Hydro Data file and name it AmericanRiverProject Step Ars to Create an analysis Project An IHA Project is linked to a single Hydro Data file but can contain multiple Analyses Each Project also has a few settings which can be altered by the user but must be the same for all Analyses in the Project Click OK to name your Project M Cancel Figure 9 Figure 10 e STEP A Click OK to define the Water Year for this project 11 Step A ts to define the Water Year for
10. ith the IHA a Wizard will guide you through these steps Hit OK to start the Wizard or Cancel to continue without it Iw Show this Page on Startup X Cancel of Hya ro ogic Alteration Figure 3 eIMPORTANT STEP 0 Go to the Options menu and select Set Working Directory Set your working directory to the IHA71_En folder e STEP 1 Now you are ready to run the wizard Under the IHA menu select Wizard The window Figure 4 will appear Select OK for the next two windows to start the import process Step 1 is to Import Hydrologic data into a Hydrologic Data File Click OK to start the Import process x Cancel E Figure 4 a Import Information o x The IHA software can import hydrologic data in three text file formats D 1 Dau flow data downloaded from the USGS website 2 Data in the dat file format used by pre Version 7 releases of the IHA 3 A generc two column format where the first column contains the date and the second column contains the flow value Once pointed towards a file the IHA wll automatically determine the type of file and import it For date types 2 and 3 you will need to specify some additional information about the file The IHA wll also automatically determine if batch processing i Necessary See Help for more information on allowable data Formats x Cancel E Help LC Click UK to select the data file to import Figure 5 e Browse to t
11. ne 4030 3200 July 869 3520 26 August 289 2570 27 September 236 1848 28 29
12. ned water year to be used for IHA parameters Specity two separate seasons to be used when calculating Environmental Flow Components Adjust the thresholds used to define high and low pulses Adjust the method for calculating AYA Categor boundaries Adjust the algorithm used to classify Environmental Flow Components These choices are available through the Set up Custom Analysis option or through the Edit Analysis button for existing analyses Other options that are available through the main Project Definition tab are You can redefine the water year You can redefine the units of flow used in the output tables and graphs x Cancel Back Figure 20 e The window below summarizes the parameters you have selected for this analysis Click Save this Analysis _ Analysis Wizard Page Analysis Type Two Pernod Analysis with Impact Year Impact Year 1956 Fre lmpact Start ear 1905 Fre lmpact End Year 1955 Post Impact Start Year 1956 Fost Impact End ear 2013 Statistics Type Mon Farametric Statistics Report lraph Title American Aier Blw Folsom For a description of the tables and graphs that will be generated by this Analysis see Help x Cancel Back y Save this Analysis E Help Figure 21 e STEP 6 Click OK to run the analysis A IHA Wizard Step6 fH Step 6 iz to Run the Analysis that you have just created Running an Analysis will cause the IHA to perform a series of calc
13. nual impaired hydrograph Figures 32 and 33 are annual hydrographs for water years 1970 and 1972 respectively American River Blw Folsom Environmental Flow Components 1905 2013 Flow Rate icts TUNS O TQQweTO Sramgmp wimgip emt r Oanprp m 1uttIgmg Wigner Deer Zorn ONT wAn Sane Mami eget Mirren Figure 32 American River Blw Folsom Environmental Flow Components 1905 2013 x g g C 5 amp 20 000 E a y a MANGT TRBIGTZ GAWIGTZ GTNGTZ WINI IASS 1112 12101972 WIWIGTD 24197 BA7NG7T gt M3MIST3 4161973 S901973 Figure 33 Now lets compare the pre and post dam hydrographs Fast e153 yi6 GNITI G t rr Baar 232 y3 A 23 American River Baw Folsom We Deg Amecican River Bay Folsom Ervironmental Flow Components 1905 2013 Ervironmental Flow Components 1905 2013 aj Figure 34 Pre Reservoir Vs Post Reservoir Figure 35 left is close up for the annual hydrograph for the 1976 water year which is during a dry period that spanned two years The right hydrograph is during the drought of 1923 American River Blw Folsom tr Envirorenantal Flow Components 1905 2073 n American River Environmental Flow Components 1905 2013 ta T 2 Ei 5 amp LD Rm s od pas 4 TANSI Zommen BRENT MINIMI BCS SEIT VUIS IIIA UITNI MENSA AIS S271924 ENENGE TRENIN x923 y3 Figure 35 Post dam dry period left Pre dam dry period right To be turned in e A g
14. r life Transition Now take a look at the hydrograph around 1956 Notice how the flows transition from pre dam to post dam flow regimes 21 fad pA Geh Option Window Hei HGR ot eS American River Bhy Folsom Environmental Flaw Components 1905 2073 LA Lk A bn a a SVT TU DZ GIS Te BESS ST 4 nur Aes Oort Swe Inne Gotrg Figure 30 To be turned in e A graph like Figure 30 from 1956 to 1964 e Why are the changes in flow regime from 1956 to 1964 What is altering the flow regime What type of flow elements are missing and what ecological functions these flow elements were providing See figure 2 4 Box 2 1 at page 49 of Rivers for life Annual unimpaired hydrograph Figure 31 is close up view of the annual hydrograph for water year 1916 22 Green of Hydrologie Aeration Graph AmencanRiverPenject Belowtelzamtiam American River Eh Folsom Eneoreental How Components 1908 2013 wel ban Gresch Options Window piep BPA oi k a Amencan River Blw Folsom Environmental Flaw Components 1905 2013 40 000 eS els A Figure 31 To be turned in e A graph like figure 31 Does this hydrograph is similar to Fugure 2 3 of Rivers for life Why e Can you identify a seasonal pattern During summer fall winter and spring What elements are presents during every seasons See figure 2 3 What ecological functions Box 2 1 at page 49 of Rivers for life these flow regimes were providing An
15. raph like figure 34 Can you discuss if this figure is similar to Figure 4 2 of rivers for life What is the reservoir doing to the flow Do you think is affecting the aquatic ecosystem of the river 25 Comparing Monthly Median Activate the graph window Monthly Flow for October and notice the median flows of pre and post dam flows ii Indicators of Hydrologie Alteration Graph American aer rajet Bekevfahombam Aeren Biver Bla Folsom Menthhy Fires for Octobe K Du Graph pisn Window Hee EERS OKEJ 4 600 4 400 4 200 4 000 3 600 3 600 3400 3 200 3 000 2 000 2 2 400 Chen LL e 1 800 1 600 1400 1 200 1 000 Hoo 600 400 200 0 American River Blw Folsom Monthly Flows for October i y F 186 1 1914 1979 1831 1929 198 dama TAH 19418 ASL 1959 1964 1555 end 1575 J964 1989 1 1999 i Figure 36 e Click on the IHA Graph Options button leftmost and select March American River Blw Folsom Monthly Flows for March i ah i d 1905 1909 1914 1919 1924 1929 DM 1999 1944 1949 1964 1969 1964 1969 1974 1979 1964 1969 1994 1999 2004 2009 any Figure 37 26 To be turned in e A graph like Figure 36 What is happening with the median flow of October in the American River Has it changed after the reservoir construction Flow Duration Curves Activate the graph window for Flow Duration Curves Si Indicators of Hydrologic Alteration Graph AmericanRiverProject BelowFolsomD
16. the IHA needs to know what to call this Analysis It must be a unique name that i nat already present in the Project B elowF olomi am Figure 15 This analysis will look at the impact of the construction of the Folsom Dam on the American River by comparing pre and post impairment periods e Select Compare two periods Tou may analyze your data in either one or two pernods Single period analysis is best for analyzing trends over time while twa period analysis allows you ta compare two discrete periods Which jupe of analysis do you wish to do Analyze as a single period Ce Compare two periods Figure 16 13 Construction of the Folsom Dam was completed in 1956 e Drag the slide control so that the time period on the left is 1905 1955 and click Next You have chosen to compare two pernods within your data Below are the water years available in your Hydro Data file rou Will need to divide your data into pre impact and post impact periods by specifying the year in which an environmental impact occurred for instance the pear in which a dam was completed IF you do not wish to analyze the entire pre and post impact periods you can also adjust the beginning and end years of those periods independent of the impact year When did the environmental impact occur drag the slide control either right or left to change the year 1905 1955 1356 2013 Select the portion of the Pre lmpact period to be an
17. tream gage ez Figure 1 American River Software Download and Data e Unzip the tutorial zip file which contains both the IHA software and the American River USGS stream gage data from Fair Oaks CA NOTE The folder also contains files for another IHA tutorial included with the software that will NOT be used in this tutorial The tutorial you are doing now has been tailored for analysis of a California relevant river system The IHA software is also available for download from The Nature Conservancy website http www conservationgateway org ConservationPractices Freshwater EnvironmentalFlows M ethodsandTools IndicatorsofHydrologicAlteration Pages IHA Software Download aspx Analysis Setup Overview The following is an overview of the basic steps taken to complete an IHA analysis Step 0 Set working directory Step 1 Import data Step 2 Name hydro data Step 3 Create and name project Step 4 Define water year Step 5 Set up an analysis ename periods statistics graph titles Step 6 Run analysis Step 7 View results Project and Analysis Setup Steps This section will walk you through the IHA wizard in which you will import the FairOaks txt stream gage data then set up and run an analysis e In the unzipped IHA71_ En folder double click on the IHA7 application to run the software oe Ceqanize e Open ir Favorites r3 Downloads E Chal Photos 2 Recent Places Se Deppbes
18. ulations on your hydrologic data Note that the IHA will automatically re run your analysis as needed Click OF to Run the Analysis x Cancel Figure 22 You have now completed a basic analysis e STEP 7 Click OK to display the analysis output Step 7 is to view the results of pour Analysis Outputs from the IHA are available in two formats as tables and graphs The IHA Wizard will display table outputs and two sample graphs Additional graphs can be viewed by clicking on the View Results button op the Project window Click OF to display a spreadsheet with table outputs and 2 sample graphs M Cancel Figure 23 15 16 Data Interpretation This section will walk you through a few key components of the analysis results assessing the hydrologic impacts of construction of the Folsom Dam on the American River Entire Record Period e Activate the graph window titled Environmental Flow Components You will see a graph like the one below showing a daily hydrograph Flow for each day is grouped into one of five types of Environmental Flow Components EFCs extreme low flows low flows high flow pulses small floods large floods Notice the difference in frequency of flows before and after the Folsom Dam was built in 1956 For more information on Environmental Flow Components please refer to the book Rivers for Life by Postel and Richter pg 49 and the IHA User Manual pgs 13 15
19. your Project The hydrologic parameters produced by the IHA are calculated and organized in the output tables by water year A water year is a 12 month period that does not necessarily comespond to the calendar year Click UK to define your waker year x Cancel Figure 11 e Select Water Year 1994 Oct 17 1993 Sept 30 1994 r Water Year Definitior Please define the Water Year vou wish to use using 1994 as an example i Water ear 1994 Jan 1st 1994 Dec 31st 1994 Mater ear 1994 Apr 1st 1994 Mar 31st 1995 Water ear 1994 Jul 1st 1993 Jun 30th 1994 f Mater ear 1994 Oct 1st 1993 Sep 30th 1994 C Water rear 1994 User defined Use this option to start a water year on a date other than four choices above Figure 12 e STEP 5 Click OK to set up an Analysis within this project bah Step Dis to set up an Analysis in thie Project Each Analysis contains a seres of parameters and settings which allow the user to manage how the IHA will analyze the available Hydro Data file Click OF to start the Analysis Wizard x Cancel Figure 13 e Click Next then name your Analysis BelowFolsomDam and click Next 12 This wizard will lead you step by step through the process of setting up a basic IHA analysis To use the more advanced features of the IHA select Set up Custom Analysis from the New Analysis Button For more information see Help x Cancel First
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