CALITOO
SunPhotometer
User Manual
October 2016
21, avenue de Fondeyre - 31200 TOULOUSE CEDEX - FRANCE
Tél. : 05 62 24 48 92 - Fax : 05 62 24 26 46 - émail :
[email protected]
Page 1: ...CALITOO SunPhotometer User Manual October 2016 21 avenue de Fondeyre 31200 TOULOUSE CEDEX FRANCE T l 05 62 24 48 92 Fax 05 62 24 26 46 mail contact tenum fr...
Page 2: ...ntained herein are subject to change without notice Please read this manual carefully before using your photometer This manual as well as technical informations tutorials and software configuration of...
Page 3: ...hotometer memory 15 2 3 2 Working with data without connecting the photometer 16 2 4 Data erasing 16 2 5 Scientific parameters 17 2 6 Work ending 17 3 Toolbox 18 3 1 Data Visualization 19 3 1 1 Displa...
Page 4: ...6 3 Change settings 46 3 6 4 Data writting 47 3 7 Data exchange 48 3 7 1 Data exportation 48 3 7 2 Data importation 48 4 Appendix 49 4 1 Optical thickness calculation 50 4 2 Particle characterization...
Page 5: ...ramework of educational and scientific international GLOBE program 2 which brings together students teachers and scientists around the observation and collection of environmental data GLOBE brings tog...
Page 6: ...ronet AOT Calculator tool to compute AOT by manually entering all other parameters AOT Processing tool to re compute the AOT of old measurements after a new calibration Uses the decimal separator of t...
Page 7: ...e rear of the unit The implementation is facilitated by first placing the side of the battery into place You can also use rechargeable batteries 1 2 Power ON The photometer is turned on by pressing fo...
Page 8: ...PS is not in 3D you can not do recordable measurement 1 4 Point to the Sun Pointing the photometer is manual it is facilitated by the sighting device located above the LCD screen Real time Blue Green...
Page 9: ...ut one minute you go on to the next step 1 6 AOT display After displaying maximum values page by pressing one more time on red button Calitoo computes AOT and displays results on a new page If results...
Page 10: ...t the bottom of the screen Then you release the button and find yourself on the base page for a new round of measures If you are not satisfied with your measurement and you do not want to save a singl...
Page 11: ...ent Atmospheric pressure Page number Measure number Photometer temperature Latitude of measurement Longitude of measurement Altitude of measurement Measure number Page number Sun elevation Raw measure...
Page 12: ...ong press the red button Release the button when the new mode is displayed Alpha or Angstr m coefficient Gauge graduation Fine particles Max Alpha 2 0 Correlation coefficient Gauge graduation Coarse p...
Page 13: ...and by during 30 minutes at least it automaticaly turn off to preserve battery power 1 12 Cautions Your photometer is an optical measuring instrument and should not hinder the path of sunlight to the...
Page 14: ...photometer CONFIG mode and the program indicates the serial number of the photometer connected Figure 2 It is possible to start without connect the photometer see 2 3 2 The program offers through the...
Page 15: ...Figure 2 2 3 Data downloading 2 3 1 Data staying in photometer memory Downloading data is proposed in Data tab of the software Figure 3 A single click on the folder icon and the operation is started F...
Page 16: ...nnection with a search of Calitoo Figure 1 Just click on the question mark icon to perform a direct link to the data folder of your photometer or if you have more than one device a list of numbers of...
Page 17: ...w measurements Measurements made before this change will remain unchanged If these must be rectified the only way is to redo the calculations with the AOT Processing tool described below Parameters ar...
Page 18: ...autonomous measurement devices etc Autonomy and quality You can maintain a good quality measurement by making or doing calibrations over the world Here is a description of the seven tools in this sof...
Page 19: ...indows is composed of the following items Data Source panel Panel Indicates the presence of available data These data are previously downloaded from the photometer selected You choose the period of th...
Page 20: ...allows you to view a glance whether photometer data exist Select year month and day containing the data you want to work The panel of months and years is sliding with the mouse The data is immediatel...
Page 21: ...October 2016 21 You can view the data of several days one must press Shift while clicking the first and last day of the selected interval Note that day boxes are colored in light blue...
Page 22: ...st optical thickness to a group of three measures taken following you will keep the point of the lowest value How to delete point You move the mouse pointer over a curve point the line of the correspo...
Page 23: ...measurements See screenshot before and after delete Very hight AOT values We estimate that more than 0 5 the optical thickness is too hight to be only caused by aerosols and the role of atmospheric ha...
Page 24: ...by the wind over Europe To start the calculations click on the Angstr m button Graphic screen is displayed over the raw data area Mathematically Alpha is the steering coefficient of the slope of the s...
Page 25: ...iable Here we go from fine to coarse particles in 3 hours A variation of the Alpha of 1 4 is enormous The R of the points of the day oscillate between 0 97 and 0 72 which confirms the impossibility of...
Page 26: ...lignment with the Sun and so place the target circle in good position for each Calitoo device We enable you this tool because it can be used to guide an automatic system mounted on motorized platform...
Page 27: ...rmous volume about seven in3 Finally the experimenter can easily change the type of particle to be observed Here is a montage that uses a high power LED lamp and a device that allows to align the Cali...
Page 28: ...ed are tight Tenum distributes a complete kit to repeat these experiments in class or in training Particle sizer on web site Tenum shop Other possible project Automatically measure continuously in the...
Page 29: ...nd named CN0 Num rique z ro We have CN0_465 for the blue CN0_540 for the green and CN0_619 for the red 3 3 2 Method Langley method consist to take light measurement with differents atmospheric thickne...
Page 30: ...d line with the y axis where m 0 is the logarithm of the measurement that the instrument would produce if it were no atmosphere Ln No 0 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 0 70 0 60 0 50 0 40 0...
Page 31: ...eather stability index of the day It is not recommended to perform calibrations during winter because the sun is low on the horizon the air mass is not enough to approach 1 over 2 5 on the winter sols...
Page 32: ...le The photometer Calitoo No 30 has been used Tuesday February 4th 2014 to take several sets of measures in order to achieve Langley calibration The first step written on page 13 allows you to downloa...
Page 33: ...ort in PDF format that is the one that comes printed in the box of your instrument The Data Source panel allows you to retrieve data according to the day month and year to which they were taken We sta...
Page 34: ...ground and the Sun in degrees RAW465 RAW540 and RAW619 Raw measurement values in three wavelengths M Calculated air mass see page 18 LOG465 LOG540 and LOG619 natural logarithms of raw measurements Se...
Page 35: ...ing on it as in our example Zooming is also possible by enclosing with the mouse button pressed the party to zoom Operation to the top left point to the bottom right under 1 and release the mouse butt...
Page 36: ...9 absolutely 1 Updating coefficients The Update device button to transmit the USB link the new coefficients connected to the photometer Calibration bulletin publication Once satisfied with your work y...
Page 37: ...12 08 38 53 13 6 1328 1544 1464 4 25 7 19143 7 34213 7 28893 1 13 09 14 30 18 3 1722 1857 1676 3 18 7 45124 7 52672 7 42417 1 14 09 14 48 18 4 1729 1869 1677 3 17 7 45530 7 53316 7 42476 1 15 09 15 04...
Page 38: ...5 3423 RAY_465 0 19490 CN0_540 3132 RAY_540 0 10637 OZ_540 0 0128 CN0_619 2455 RAY_619 0 06281 OZ_619 0 0154 2014 02 21 09 43 10 CN0_465 3582 RAY_465 0 19490 CN0_540 3154 RAY_540 0 10637 OZ_540 0 0128...
Page 39: ...as etalon is being validated and will be available in a future version of this software 3 4 3 What is AERONET The program AERONET Aerosol RObotic NETwork is a network of land aerosol measurements made...
Page 40: ...You will find the location of internet stations http aeronet gsfc nasa gov Perform measurements with the Calitoo to be calibrated by a sunny weather and a stable atmosphere The aim is to achieve thes...
Page 41: ...ntal sign of a stable atmosphere during the day measures Finally it will download the zip file and unzip it to the folder username CalitooData AeronetData The name of a data file uses the following sy...
Page 42: ...tabs in the lower part of the window Step 1 Calitoo raw data Data of Calitoo to be calibrated It consists in choosing the raw data in accordance with the measurement recording date with the calendar i...
Page 43: ...rizontal line It is possible to improve this by eliminating the extreme points min and max of the curve To do this use the small slider in the Parameters panel Min Max CN0 to exclude You can also do t...
Page 44: ...rData csv and contains such information Date Time Pressure Latitude Longitude B_Raw G_RAW R_RAW B_AOT G_AOT R_AOT B_CN0 G_CN0 R_CN0 B_Ray G_Ray R_Ray G_Oz R_Oz 2015 02 09 12 00 00 1012 4338 39280N 001...
Page 45: ...value of AOT AOT calculator and work on spreadsheets allows for this type curves for a place a date and a fixed time Date Time Pressure Latitude Longitude 2015 02 09 12 00 00 1012 4338 39280N 00125 5...
Page 46: ...curves recalculated from current coefficients in solid lines Here s what can be achieved on the screen 3 6 3 Change settings The role of the parameters is quickly and easily readable the curves are re...
Page 47: ...6 RAY_465 0 19490 CN0_540 3435 RAY_540 0 10637 OZ_540 0 0128 CN0_619 2733 RAY_619 0 06119 OZ_619 0 0154 Date Time Temperature Pression RAW465 RAW540 RAW619 Altitude Latitude Longitude Elevation AOT465...
Page 48: ...see 3 7 2 In this case load the data as described in chapter 2 3 2 and proceed as before to access the export function 3 7 2 Data importation The complementary function of the preceding one allows to...
Page 49: ...October 2016 49 4 Appendix...
Page 50: ...the molecules Rayleigh by ozone molecules O3 and aerosol We distinguish the natural contribution molecular and contaminating aerosols others Contributions due to ozone and perhaps other absorbing gas...
Page 51: ...2 exp m a aR p p0 o3 With r0 the distance of 1 AU and r then Sun Earth distance at measure date in AU r 1 e 2 1 e cos 2 n 365 Avec e 0 0167 We now express a optical thickness due to aerosols accordin...
Page 52: ...lume expected in a season precipitation Depending on the concentration of water present in the atmosphere a higher coefficient of favoring the concentration of the clouds and rain Calculation The Angs...
Page 53: ...12 06 WHQL Certified exe 2 5_Changes txt 4 3 1 Installing USB FTDI driver This must be done before connecting for the first time the photometer to the PC via the USB port and Calitoo before starting...
Page 54: ...ot by any user who wishes to connect Connect and power a calitoo to the USB port of PC_Linux Use a terminal and go to dev Type the command ls al Identify in the dev list the file ttyUSB0 You should ha...
Page 55: ...his software has been tested with success under Fedora21 Debian 8 1 Mint Ubuntu Start by downloading the archive file Calitoo_v2 5_Linux zip from our website http www calitoo fr index php page logicie...
Page 56: ...he USB port and Calitoo before starting the program Two driver files are provided and must be used depending on the version of your MAC OS X system Driver_2 2 18 for Mac OS X 10 3 to 10 8 Driver_2 3 f...
Page 57: ...MEASURES Tempo Mode READING Tempo Page 1 4 Page 2 4 Page 3 4 Measurement n Latitude Longitude Altitude Elevation Short button Short button Short button Long button Long button Long button Measurement...
Page 58: ...40908_15 bmp calculator ini 0002_log txt AeronetData 140908_140908_Izana lev10 140908_140908_Izana lev15 150618_150618_Izana lev15 Calitoo ini 0002 Identification number of the photometer it produced...
Page 59: ...039 2132 1895 00154 4338 40656N 00125 57830E 43 4 0 1090 0 0929 0 0822 1 23 0 97 2013 09 12 13 37 37 28 1006 2038 2130 1900 00148 4338 40957N 00125 57657E 43 3 0 1100 0 0939 0 0812 0 95 0 99 Attention...
