TIMElux 1.0 User Manual - International Daylight Measurement
Contents
1. 100 100 100 100 100 100 100 e OC Y v oo 15 a e 16 n e 17 n 18 a 19 a 20 a s 21 80 80 80 80 80 80 80 70 70 70 70 70 70 70 60 60 60 60 60 60 60 50 50 50 50 50 50 50 40 40 40 40 40 40 40 30 30 30 30 30 30 30 20 20 20 20 20 7 20 20 10 10 10 10 10 10 10 0 0 0 0 0 0 0 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 110 110 110 110 110 110 110 100 sE 100 sE 100 a 100 sE 100 100 100 sE Sai cae a a tae 90 j 22 90 8 23 90 e 24 90 25 90 26 90 S amp S 27 90 x 28 80 80 80 80 80 80 80 70 70 70 I 70 had 70 l 70 70 60 60 60 60 60 60 60 50 50 50 50 50 50 50 40 40 40 40 40 40 40 30 30 30 30 30 30 30 20 20 20 20 20 20 20 10 10 N 10 10 10 10 10 A 0 0 G 0 0 5 0 0 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 4 16 18 2 2 4 6 8 10 12 14 16 18 20 22 e ose 100 90 gao 29 90 sao 30 90 31 March 1996 e a f 5 4 Global Horizontal IIluminance klux H Hae vs Winter Clock Time hr Inconclusive Hii Validated E Questiona2. 110 100 100 100 100 100 100 100 90 1 90 z 2 90 2 3 90 4 90 5 90 z 6 90 lt gt 7 80 80 80 80 80 80 80 70 70 70 70 70 70 70 60 60 60 60 60 60 60 50 50 50 50 50 50 50 40 40 40 I 4 40 40 r 40 40 30 30 30 30 30 30 30 s t 20 20 20 20 20 20 20 10 10 10 10 10 10 10 0 0 AS 0 b 0 0 0 0 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 2 2 4 6 8 10 12 14 16 18 2 110 110 110 110 110 110 110 100 a 100 one 100 ae 100 ae 100 gt g 100 e 100 a A a n 90 gt 8 90 p 9 90 gt 10 90 gt 11 90 a 12 90 P 13 90 oo 14 80 80 80 80 80 80 80 70 70 70 70 70 70 70 4 20 20 20 10 10 10 10 10 10 9 60 60 60 gt 60 60 60 50 A 50 f 50 N 50 h 50 50 h 50 40 40 I 40 40 40 40 E 40 30 30 30 30 30 30 30 20 20 20 h 4 s 2 2 ra Z KA 03 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 110 22 22
3. the sky type That is Eeg and Eed the global and diffuse horizontal irradiances There are five sky types represented on the graph with different icons showing the change from a cloudless blue sky to a dark overcast sky This sky classification has been developed by M Perraudeau One year s measurements of luminous climate in Nantes Daylighting In ternational Conference Long Beach CA 1986 TIMElux 1 0 manual 9 oi Oo SS Es SSS SE ee aa _ SS Se 0 h 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 2 22 4 6 8 10 12 14 46 TAT 29 a Evg Evd vs Time b Evg Evd vs Time c Evg Evd vs Time with sky type with daylength with period 9 to 17 and reference level at 10 klux 100 100 a 90 31 31 e 31 80 80 ie 70 oie 70 oN 60 1g A 60 R 50 p 50 NI 40 Pii 40 Pk 30 O 30 SS j ots ages a P 10 20 30 40 50 60 70 g 10 20 30 40 50 60 70 d Evg Evd vs Alt e Evg vs Evd with time f Wind speed vs Wind Sun Altitude of measurements direction with sky type Figure 7 Output produced with various options of TIMElux Evg Evd and Alt are defined in the file vars dat A second option is to represent graphically the daylength It is computed using the lati tude longitude and time zone information found in the headers of the file Two rectangles are drawn to highlight
4. 80 60 Evdn 138 North Vertical Diffuse Illuminance Klux 0 0 70 0 1000 0 10 0 80 80 O Evas 142 South Vertical Diffuse Illuminance Klux 0 0 70 0 1000 0 10 0 40 30 0 Evdw 144 West Vertical Diffuse Illuminance Klux 0 0 70 0 1000 0 10 0 40 30 O Evg 110 Global Horizontal Illuminance Klux 0 0 110 0 1000 0 10 0 80 80 O Evge 132 East Vertical Global Illuminance Klux 0 0 110 0 1000 0 10 0 80 80 O Evgn 130 North Vertical Global Illuminance Klux 0 0 110 0 1000 0 10 0 40 30 Evga 134 South Vertical Global Illuminance Klux 0 0 110 0 1000 0 10 0 80 80 0 Evgw 136 West Vertical Global Illuminance Klux 0 0 110 0 1000 0 10 0 40 30 Evs 100 Direct Normal Illuminance Klux 0 0 140 0 1000 0 10 0 80 80 Evsz 101 Direct Horizontal Illuminance Klux 0 0 110 0 1000 0 10 0 80 80 O Kyd 607 Diffuse illuminance fraction n a 1 0 0 0 1 0 0 1 80 860 O Kys 608 Direct illuminance fraction n a 0 0 1 0 1 0 0 1 80 380 O Lyz 199 Zenith Luminance KCd m2 0 0 22 0 1000 0 2 0 80 80 0 Rh 453 Relative Humidity 10 0 100 0 1 0 10 0 70 10 30 Rog 457 Ground Albedo n a 0 0 1 0 1 0 0 1 70 10 230 TST 410 Sunshine Duration mn 0 0 840 0 1 0 60 0 0 33 100 sss Gs ABS Snow Cover Indicator n a 0 0 3 0 1 0 1 0 70 10 30 Time 999 Winter Local Time hr 4 0 22 0 1 0 2 0 O 33 100 Wda 455 Wind Direction DgN gt E 0 0 360 0 1 0 45 0 70 10 30 Ws 454 Wind Speed m s 0 0 20 0 1 0 2 0 100 45 45 F
5. Internationale de Eclairage see the web page at http www cie co at cie home html The basic ideas behind the format are the following Each record begins with the IDMP code of the station FRA2 in Figure 3 A record may hold more than one line but it has a fixed number of variables in it A few lines of text can be added to the beginning of the file to give some explanations on what the file contains TIMElux does not use this information since this text has no defined structure The first record beginning with the IDMP code describes the content of the file with a set of nu meric codes In this format date and time are presented using the year followed by the julian day then by the time expressed in fraction of hours The interesting feature of this format is that each variable in the record is given with a quality control flag which is introduced manually or automatically by the AQCCIE program developed by P Ineichen from the Group of Applied Physics in Geneva contact pierre ineichen gap e unige ch One great feature of TIMElux is to allow to represent graphically the output of the quality control using different colors see section VI In this format unknown values should always be followed by a quality control flag equal to 9 The file vars dat contains the link between the column labels used in the Joule for mat and the numeric codes used in the CIE format TIMElux 1 0 manual 5 V Description of vars da
6. described in this user guide Here are some suggestions on what to use this program for e Showing and explaining your data to your partners e Controlling visually the quality of your data e Compiling the outputs of TIMElux for later reference e Selecting days with typical variations from the entire database e Performing data exploratory analysis look at the data first cross compare the variations of your variables then perform statistical analysis e Validating models by watching their day to day performance TIMElux works in a DOS shell under Windows 3 1 or Windows 95 It also works under the Macintosh operating system The output file that it generates is in the Adobe Portable Document Format It can be read using the Adobe Acrobat Reader available for free at www adobe com The reader allows you to visualize the whole page shown in Figure 1 zoom in any area of the page and obtain an excellent printout in color or in black and white on a Laser Printer A tryout version of TIMElux is available it is not limited in functionality however the word unregistered appears on every graph To get the real program you will have to register and pay a little fee which will give me some motiva tion to keep working on the program See the last section of this document to learn more about registration TIMElux 1 0 manual 2 III Program environment The program needs a few extra files to run properly The files vars dat
7. individual graph it is better to plot less than five variables The settings on the y axis are taken from the first y variable selected To indicate that you do not want to plot any other variable type amp instead of a variable name If you have chosen to plot Wd wind direction as the x variable and Ws wind speed as the only y variable TIMElux will generate automatically a wind rose see Figure 7 f This wind rose provides statistical information on wind speed and wind direction during the day The number in the center indicates the percentage of time during which the wind was blowing Ws gt 0 0 The wind rose indicates the percentage of time during which a given level of wind speed is exceeded in a given direction Four different wind speed levels are used 5 10 20 and 30 km h with different colors Wind direction information is plotted every 20 of azimuth Percentages use one grid circle every 10 The next step is to enter the year for which you are interested in the data then the first month for which you want to plot the data and the last month It is possible to plot more than one month from the same data file in that case TIMElux generates one PDF file per month Finally you are requested to choose among various options A first option is to represent the average sky type for each day see Figure 7 a The sky type representation is only possible when your data file contains information upon which TIMElux can establish
8. the night period see Figure 7 b A third option is to represent graphically a specific period of time during the day work ing hours for instance You specify this period by indicating the first hour in decimals and the last hour in decimals TIMElux draws a brown rectangle which helps to focus on the variations of the variable s during this period see Figure 7 c The second and third options are time dependent information therefore they cannot be selected if you do not use Time as the x variable When this is the case these two op tions are replaced by the option of writing down the time of the measurements next to some of the points Another option offered by the program is to highlight a given level on the y axis with a red line see Figure 7 c After selecting this option you are requested to enter the reference level this level must take into account the scale chosen for the variable So if you plot a variable which is in lux in the data file and in klux on the plot according to the file vars dat then the reference level is 10 klux if you enter 10 Finally an interesting option is available when the CIE format is used TIMElux allows to represent the quality control flag of a variable by changing the color of the line depending on its value see Figure 8 next page TIMElux 1 0 manual 10
9. 100 W m2 2 100 W m2 3 100 W m2 4 10 0 klux oy 10 0 kl x 6 10 0 kit 7 10x0 klox 10 0 klux 9 10 0 kl x PRAZ 2 490276 4 93 170 150 5 1 12 110 1 L 2a k dk r0 1 L Ios kk L 134 1 1 136 1 1 10 I 1 22 L1 1 T99 1 1 437 1 Ao Ay L oUa Ll ERAA 96 62 T33 0 0 tied d 1164 1 730 L 124 1 232 1 V702 1 7 133 TL ode 0 JLO 7 U y3 U ERAZ 96 62 7 42 0 0 1622 Jd T622 1 1016 1 dose 1 116s 2 277 1 dt L12 1 oor od J1 0 l7 0 1 0 PRAZ 96 62 745 U 0 20905 2 ZOOS 2 J20 2 2007 2 Lo94 2 14065 2 14 2 411 2 452 0 DL 0 dead UV lee 0 FRAZ 96 62 7 58 0 0 ZIOZ 2 20904 z 160 2 4662 2 2572 2 1990 2 23 2 16 2 499 0 21 0 1st U 235 0 FRA2 96 62 7 67 0 S470 T 236 L L27 1 2160 1 3604 L 1920 1 39 1 20 L S62 U ol O es U Sas Q FRAZ 96 62 7479 0 0 4290 L 3903 L 2330 1 13200 1 S273 I 2222 1 45 4 24 I 603o O 2L U 1 7 U 4 2 0 FRAZ 96 62 7 83 0 0 soo L 2613 b 2006 1 e670 L 7243 1 25932 1 56 1 29 1 604 0 OL ea oS 0 FRAZ 26 62 7 92 0 0 0456 L S226 L 2966 I 23190 L 9070 L 2607 17k I 233 L 767 0 21 OU 2 U See 0 Figure 3 CIE file format output by the AQCCIE program from P Ineichen The second file format is called the CIE format It has been designed specifically for the IDMP network by the technical committee 3 07 of the CIE It is far from being as explicit as the Joule format as can be seen in Figure 13 It is fully described in a document called Guide to recommended practice of daylight measurement and published for the IDMP by the Commission
10. TIMElux 1 0 User Manual Dominique Dumortier entpe fr ENTPE CNRS Vaulx en Velin France March 7 1997 I What is TIMElux You have files with days and days years and years of variables with minute variations How to have a look at all this data quickly and easily It is impossible with Microsoft Excel TIMElux makes it possible In only one A4 page this program generates the day by day variations of your data for one month using the familiar interface of a calendar see Figure 1 below fA 8 10 12 14 16 18 20 22 14 March 1996 Vaulx en Velin France IDMP FRA2 Evg Evd Lat 45 78 N i Long 4 93 E vs Winter Clock Time hr Pie Om Clock Time GMT 1 0 18 20 22 4 Processed by TIMElux 1 0 March 07 97 Figure 1 Output of the TIMElux program A square corresponds to one day in the month For each day TIMElux plots the variations of one or more variables with respect to the time as in Figure 1 or to any other variable as can be seen in Figure 7 Within each square to the right a number specifies the day in the month The whole page allows you to see how your variables change from one day t
11. Y TIMElux 1 0 manual 6 You are allowed to define as many as 100 variables You are pretty much free to decide about the short names defined in column 1 of vars dat However a set of short names is used by the program to perform some tasks automatically these short names should not be changed They are the following Name Usage Alt for sun altitude Azi for sun azimuth Cre for the energetic cloud ratio diffuse global Crv for the luminous cloud ratio diffuse global Date for the date of the day Eed for the diffuse horizontal irradiance Eeg for the global horizontal irradiance Eesz for the beam horizontal irradiance Effd for the diffuse luminous efficacy Effg for the global luminous efficacy Evd for the diffuse horizontal illuminance Eve for the global horizontal illuminance Evsz for the beam horizontal illuminance Time for the time of the day Wd for wind direction Ws for wind speed Table 1 Variables with reserved short names TIMElux knows more about these variables than any other For instance if you ask to represent Alt Azi Cre Crv Effd Effg and they do not exist in the file it will compute their values automatically provided that the data required to compute them can be found in the file If you are using a file which contains a variable not defined in vars dat TIMElux will ask you to define its characteristics within the session VI Description of cities dat The file citi
12. and cities dat are absolute requirements TIMElux is not able to look for a file located in the directory other than the one where it is running so place all the files in the same directory as TIMElux The program will generate the output file in the exact same directory You may also use special files which contain a graphical description of a country these have the extension psi If found they are used by TIMElux to represent graphically the country and the site in its country more on that in the cities dat section These files are available only to registered users IV The input data file format The program understands two file formats the first one is called the Joule format see example in Figure 2 the second one is called the CIE format see example in Figure 3 The Joule format has been proposed and used in a European Joule Research Programme dealing with the IDMP It is the easiest one to use It first has a header Then the data is presented in columns separated by spaces or tabs as you wish Only one line is used for a given date and time The data is preceded by two lines indicating the name of the vari ables and the units used for these variables The header contains useful information on the data The first two lines are essential and you should stick to the format presented in Figure 2 as closely as possible TIMElux uses most of the information presented in these two lines If the program does not work prope
13. ble Y Vaulx en Velin France IDMP FRA2 Lat 45 78 N Long 4 93 E Alt 170 m Clock Time GMT 1 0 e 0 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 4 6 8 10 12 14 16 18 20 22 Processed by TIMElux 1 0 March 12 97 Figure 8 Output produced by TIMElux for the CIE file format with quality control visualization Green is used when the quality control flag is set to 2 data validated Orange is used when the flag is set to 1 data inconclusive Finally red is used when the flag is set to 3 The color defined for the variable in vars dat is used only when the flag is set to 0 variable not tested VIII About registration If TIMElux is of interest to you contact me via electronic mail or by fax 33 04 72 04 70 41 To become a registered user of the program You will have to sign a letter of agreement and to pay for the program Then you will be able to download TIMElux 1 0 from the ENTPE ftp site The registered version of TIMElux comes with a set of country outlines files psi for all the IDMP sites TIMElux 1 0 manual 11
14. es dat see Figure 5 next page contains information required by TIMElux to locate graphically a city within its country First the program uses this file to find the city according to its name column 1 or its IDMP code column 4 Then it uses column 3 to open a graphical description of the outline of the country for UK it opens UK psi Then it locates the city in its country by drawing a red point at the coordinates given in the last two columns Xref and Yref These coordinates are given in cm They are rela tive to the lower left corner of the rectangle in which the country information is drawn You can have up to 100 sites defined in this file TIMElux 1 0 manual 7 is rs i Counce LYy MAP TDMP Xref Yref Aberporth TURK uk TRY 4 70 0 60 Albany USA usa e USA2 4 75 Lie DO Ann Arbor USA Usa e USA 4 05 legg Ashikaga Japan Japan JPN9 4 65 Leto Athens Greece greece GRC1 4 60 110 Auckland New Zealand newzeal NZL3 4 75 l a90 Augsburg Germany germany TRY 4 60 0 70 Beijing China ahina CHNZ 4265 Oe oe Bet Dagan Tsrael israel ISR1 4 50 bab5 Bo lzano Ppa italy TRY 4 15 2 15 Bratislava Slovakia slovakia SVE 3x65 1 40 Cag liera Italy italy TRI FaU Ss Calgary Canada Canada DNI 3 30 0 90 Carpentras France france ERI 490 Ondo Figure 5 The file cities dat VII How to run the program First ma
15. igure 4 The file vars dat Column 1 contains a short name for the variable the label of the column in the Joule data file Column 2 contains a numeric code used for the IDMP in the CIE format Column 3 indicates the full name of the variable This is the name used in the graphical representa tion It should always be followed by the unit enclosed between parentheses This unit may be different from the unit used in the data file because of the scale factor defined in column 6 The remaining columns give indications on how to plot the variable Columns 4 and 5 indicate the minimum and maximum values used for the plot The maximum value can be lower than the minimum value in that case the axis is reversed for Kvd in the exam ple shown in Figure 4 the maximum value of 1 will be on the left and the minimum value of 0 will be on the right Column 6 indicates the scale used to plot the data if you indicate 1000 the data read in the file is divided by 1000 Each graph has a grid Column 7 Delt indicates the value separating each line of the grid Let s say that you want to represent the illuminance in klux it is read in the file in lux but you use a scale factor of 1000 the grid is plotted every 10 klux if column 7 is equal to 10 The last three columns allow you to decide which color you want to use to represent the variable a color is defined by the percentage of Cyan column C Magenta column Y and Yellow column
16. ke sure that all the files you need are in the same directory You definitely need vars dat cities dat and your data file Joule format or CIE format Figure 6 below shows an example of a session It is exactly the same whether you work with Windows or with Mac OS What is the name of the data file that you want to plot vaulx96 qc What variable should be used on the x axis Time What variable should be used on the y axis amp to stop the loop Evg What variable should be used on the y axis amp to stop the loop Evd What variable should be used on the y axis amp to stop the loop amp Which year do you want to plot 0 to 99 96 What is the month to start with 1 to 12 3 What is the month to end with 1 to 12 3 Do you want to visualize the sky type yes 1 no 0 1 Do you want to visualize the daylength yes 1 no 0 1 Do you want to visualize a specific time period yes 1 no 0 1 Indicate at what time the period starts 8 5 for 8 30 9 Indicate at what time the period ends 17 5 for 17 30 17 Do you want to visualize a reference level yes 1 no 0 I Which level do you want to use as a reference 10 Do you want to visualize the quality control flags yes 1 no 0 1 Data is being plotted Day 31 has been plotted The output file is called vaulx96MarEvg pdf Figure 6 Example of a session with TIMElux TIMElux 1 0 manual You are first reques
17. o the other while still allowing you to grasp the details of hourly variations Various op tions are available to display the average sky type during the day or the daylength or a reference level these options are presented in section VII TIMElux 1 0 manual 1 Two reserved areas are used to display information on the data The first on the extreme right indicates the name of the site where the data was taken from its coordinates in terms of latitude longitude and altitude as well as its time zone The location of the site in its country is illustrated graphically The second reserved area indicates the month and the year to which the data correspond as well as the name of the variables used in the representation II Use of TIMElux TIMElux has been initially designed to represent the data measured by ENTPE daylight measuring station This station is part of an international network of over 50 stations called the IDMP for International Daylight Measurement Programme see http idmp entpe fr The ENTPE station measures every minute 13 variables and thus pro duces 780 values per hour hence a total of 23 400 values in a month TIMElux generates the monthly display seen above in a minute on a PC equipped with an Intel Pentium The program has been extended to use the data produced by all the other stations of the IDMP network TIMElux is flexible enough to be used on any time dependent data provided that your files follow the format
18. o 10 26 96 TYPE Smn Averaged Measurements SOURCE ENTPE Rue Maurice Audin 69518 Vaulx en Velin FRANCE Fax 33 72047041 Phone 33 72047067 Person to contact Dominique Dumortier COMMENTS Values for diffuse illuminance and irradiance are corrected Shadowring correction factors calculated by Littlefair methodology Cells were last calibrated in Garston at BRE on September 7 1992 These values have gone through LASH guality control procedure Evg global horizontal illuminance Evd diffuse horizontal illuminance Evgn global vertical north illuminance Evge global vertical east illuminance Evgs global vertical south illuminance Evgw global vertical west illuminance Beg global horizontal irradiance Bed diffuse horizontal irradiance Lvz zenith luminance 11 degree aperture Date Time Evg Evd Evgn Evge Evgs Evgw Eeg Eed Lyvz mm dd yy hh mm LUX LUX L x Lux LUX Lux W m2 W m2 Cd m2 03702796 06255 67 O 35 90 60 oo 2 2 128 03702796 07200 Lo 150 82 Lae LIG La 2 2 128 03702796 07205 284 284 157 320 198 140 1 1 PAN G27027790 0721 0 498 498 291 oo chr 272 1 O 212 3702 96 07215 198 LIC 485 Re Ibd 460 4 3 286 03 02796 07220 1184 1184 730 1247 SoZ O02 7 5 314 U3 7 02 796 07225 Loa L622 1016 L652 TAGS O14 11 8 S77 03702790 07730 Z095 20995 1320 2607 1592 1299 14 11 452 Figure 2 Joule input file format Indicate also when summer clock time starts and finishes using the same date format as in the data file see paragra
19. ph below The remaining lines of the header are useful to under stand what the data is about TYPE and COMMENTS and where it comes from SOURCE The data begins with two lines one with column labels the other one with column units TIMElux considers that the header ends when it finds a line where the first word is Date Therefore TIMElux expects the data to begin with Date as the first column and Time as the second column The date and time have a format rather strict Time is presented in a 24 hour format hh mm 20 50 Date can be presented in two formats the month followed by the day followed by the year mm dd yy or the day followed by the month followed by the year dd mm yy Make sure that the unit is coherent with what is used in the re maining of the file Since the date is indicated by only two numbers TIMElux assumes that above 50 it is the 20th century 1951 to 1999 and below 50 it is the 21st century 2000 to 2050 TIMElux 1 0 manual 4 The other variables are found in the remaining columns TIMElux looks for the label of the column in the file vars dat to find information on how to represent the variable see section IV on the content of the file vars dat When the value of a variable is not known it should be written as 99 TIMElux will not plot values equal to 99 Automatic Quality Control carried out on 04 01 1996 B Molineaux GAP Geneva Validation Limits 1
20. rly it may well be because the format of these two lines has not been strictly fol lowed The first line provides information on the SITE to which the data corresponds Commas are used to separate the various fields of information in that line so do not omit them The name of the city and the name of the country are first mentioned If you want the program to be able to represent the country on the page these names should be the same as in the file cities dat This is followed by the IDMP code of your station if the data does not correspond to the measurements of an IDMP station you can simply omit this field then erase lt IDMP xxx in the header Then the latitude the longitude and the altitude of the site are indicated Follow strictly the format used in Figure 2 use decimal values of degrees indicate North by N South by S East by E and West by W put spaces between the numbers and the labels The second line indicates what TIME reference is used throughout the file Again fol low the format presented in Figure 2 closely The data can be presented using Winter Clock Time as in Figure 2 or Summer Clock Time or Clock Time or Solar Time Between the parentheses indicate your legal time zone in the same way as in Figure 2 GMT TIMElux 1 0 manual 3 SITE Vaulx en Velin France IDMP FRA2 Lat 45 78 N Long 4 93 E Alt 170 m TIME Winter Clock Time GMT 1 Summer Clock Time from 04 28 96 t
21. t The file vars dat see Figure 4 below contains information required by TIMElux to de cide how to represent a variable You can of course modify the file but follow the format strictly all character strings are enclosed in quotes The file contains 10 columns Name TDMP Full Name Min Max Scale Delt me M myn Alt 502 Sun Altitude Deg 0 0 70 0 1 0 10 0 0 33 100 Azi 505 Sun Azimuth Deg 0 0 360 0 1 0 45 0 0 33 100 Cef 600 Irradiance Correction Factor 0 0 100 0 1 0 10 0 20 90 70 Cre 604 Irradiance Cloud Ratio 0 0 1 0 1 0 0 1 20 90 70 Cry 605 Illuminance Cloud Ratio 0 0 1 0 1 0 0 1 80 80 0 Cyf 601 Illuminance Correction Factor 0 0 100 0 1 0 10 0 80 80 Dp 450 Dry Bulb Temperature Deg C 8 0 36 0 1 0 4 0 70 10 30 Det 452 Dew Point Temperature Deg C 090 36 0 1 0 4 0 70 10 30 hed 022 Diffuse Horizontal Irradiance W m2 0 0 800 0 1 0 100 0 0O 40 30 Eeg 010 Global Horizontal Irradiance W m2 0 0 1100 0 1 0 100 0 20 90 70 Res 000 Direct Normal Irradiance W m2 0 0 800 0 1 0 100 0 20 90 70 Fesz 001 Direct Horizontal Irradiance W m2 0 0 800 0 1 0 100 0 20 90 70 Effd 603 Diffuse Luminous Efficacy Lm W 90 0 160 0 1 0 10 0 40 30 0 a Se fa 602 Global Luminous Efficacy Lm W 90 0 160 0 1 0 10 0 80 80 Evd 122 Diffuse Horizontal Illuminance Klux 0 0 70 0 1000 0 10 0 40 30 O Evde 140 East Vertical Diffuse Illuminance Klux 0 0 70 0 1000 0 10 0
22. ted to enter the name of the data file used as input to the program Based on the analysis of the header TIMElux automatically detects the format of the file Joule or CIE The file produced by the program will have the same name as the input file followed by three letters for the month and by the short name of the first y variable selected for the plot This can make for file names longer than 8 characters which is OK if you moved to Windows 95 The pdf extension replaces any extension that the input file had Then you have to enter the name of the variable to be used on the x axis There is only one variable on the x axis This variable can be Time or any other variable In this last case TIMElux generates a cloud of points showing the trend between the y variable s and the x variable see Figure 7 d and Figure 7 e next page As an option TIMElux can write down the time corresponding to some of the points directly on the graph Morning hours are written above the points afternoon hours are written below the points see Figure 7 e Hours are written using a size small enough not to hide the points They are easy to read on the screen using the Acrobat Reader zoom function even though they are hard to read once printed on paper The next step is to enter the name of the y variable s You can plot as many variables as you wish However make sure that their colors as defined in vars dat are different Because of the size of each
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