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1. CCWorldWeatherGen Climate change world weather file generator Version 1 6 UNIVERSITY OF Sustainable Energy Research Group South ampton February 2012 Climate change world weather file generator CCWorldWeatherGen 1 Introduction 2 Preparing the CCWorldWeatherGen tool for use 2l Obtaining EPW weather files 2 2 Downloading the HadCM3 climate change scenario data 3 Creating climate change weather files from present day weather data 3 1 Decimal and digit grouping symbols in Microsoft Windows 3 2 Permitting macros and setting the auto recover time in Microsoft Excel 3 3 Getting started 3 4 Selecting an EPW weather file 3 5 Selecting a HadCM3 A2 scenario ensemble timeframe 3 6 Morphing an EPW weather file 3 7 Generating a climate change EPW or TMY2 weather file 3 8 Generating a present day TMY2 file 4 Underlying methodology of the CCWorldWeatherGen tool 5 Troubleshooting 6 Copyright and licensing notes T Disclaimer of warranties 8 Acknowledgements 9 References Climate change world weather file generator AA NOOONA Contents COVER PICTURE HadCM3_ general circulation model data grid over Malaysia with selected weather stations in Malaysia Singapore and Brunei Climate change world weather file generator CCWorldWeatherGen 1 a Introduction The climate change world weather file generator CCWorldWeatherGen uses IPCC TAR model summary data of the HadCM3 A22. eA TEE EET EE E Owe EEEE TEETE L TE B Arial 20 jB Z ujsag o AP ase ip Security EEX TO Aa abl m m N GB A Se ot E AB88 X Summary of combined HadCM3 A2 ensemble climate change predictions For the selected weather site No scenario selected JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN Daily mean temperature TEMP C 0 00 000 O00 0 00 O00 000 0 00 0 00 O88 000 O00 0 00 0 00 Maximum temperature TMAX C nm nm nm onnan nna nm onm onm onnan onnan nnn nnn 000 Minimum temperature TMIN C 2x 0 00 Horizontal solar irradiation DSWF W m Look in la GBR London Gatwick Ashrae z 0 0 X amp gt To es a7 Total cloud cover TCLW points 0 00 Total precipitation rate PREC Relative humidity RHUM points a odr Goce MISE RS ERW We 15 01 00 Mean sea level pressure MSLP hpa 0 00 Wind speed WIND 0 00 Please note that wind speed resides on a 96x E oA B file selection 1 Pleas amp specify the EPW file you want to Select EPW File for Mor My Computer Current EPW baseline weather file for m Fie name Loren __ No weather file selected Latitude my Network Longituc Places Files of type ae Weather File epw i Cancel J Elevatio D ie 4 gt MN Convert File EPW Z HadcM3 _ Morphed Weather CC EPw fcc Tmy2 Z PD TMy2 dal iow iy Autoshaesy SOOM 4 o 4 A S sagh Ready NUM 7 Ej
3. experiment ensemble which is available from the IPCC DDC 1 2 The tool enables you to generate climate change weather files ready for use in building performance simulation programs It is Microsoft Excel based and transforms present day EPW weather files into climate change EPW or TMY2 weather files which are compatible with the majority of building performance simulation programs The underlying weather file generation routines of this tool are based on the so called morphing methodology for climate change transformation of weather data which was developed by Belcher Hacker and Powell 3 In addition the CCWorldWeatherGen tool includes further calculation routines for generating simulation ready EPW and TMY2 files The CCWorldWeatherGen tool allows you to generate climate change weather files with a few mouse clicks You can produce morphed EPW and TMY2 files as well as present day TMY2 files from the original EPW format files The tool is made available free of charge However it is solely distributed WITHOUT the required baseline weather files and or climate change scenario data Please view sections 2 1 and 2 2 for information on where to obtain the required baseline data Basic requirements for running the CCWorldWeatherGen tool a A valid installation of Microsoft Excel on your local hard drive CCWorldWeatherGen has been tested with the 2003 and 2007 versions However the authors do not take responsibilit
4. now The file cannot be saved directly from the main workbook Please regenerate the EPW or TMY2 file by clicking the appropriate button a second time and save the file when prompted 6 Copyright and licensing notes The original weather files used for generating climate change adapted weather data may be copyrighted material Therefore generated weather files can only be used by persons or entities who possess the corresponding licensed weather files The user of this tool takes the sole responsibility of complying with the terms and conditions of the original weather data as well as the climate change scenario data used within this tool Files generated with this tool may not be distributed to a third party T Disclaimer of warranties The entire risk as to the quality accuracy and performance of the climate change weather data calculated with this tool is with you In no event will the authors of the weather file generation tool be liable to you for any damages including without limitation any lost profits lost savings or other incidental or consequential damages arising out of the use or inability to use this tool and or its generated data 8 Acknowledgements The authors gratefully acknowledge the HadCM3 general circulation model GCM data by the UK Met Office Hadley Centre 1 which is required for this tool and can be downloaded from the IPCC Data Distribution Centre website 2 The morphing methodology for generating climate c
5. 226 755 1414 1564 1092 1492 1339 545 0 24 O70 672 Total cloud cover TCLW points 3 50 0 13 4 13 3 63 638 6 38 5 88 7 38 7 63 5 13 0 25 1 38 3 69 Total precipitation rate PREC 17 95 19 45 11 06 3 11 14 47 9 94 30 98 37 00 22 96 5 10 972 548 4 99 Relative humidity RHUM points 0 17 0 59 1 94 255 3 30 4 52 5 60 8 57 8 22 3 64 0 36 0 40 3 32 Mean sea level pressure MSLP hpa 244 173 273 0 35 061 O27 1 54 0 53 0 33 033 026 2 26 0 46 Wind speed WIND 3 42 295 0 48 198 075 231 009 1 08 0 96 064 113 1 58 076 Please note that wind speed resides on a 96x72 grid whilst all the other data is on a 96x73 grid G 1 Please specify the EPW file you want to transform scenario ensembe timeframe Select EPW File for Morphing Load Scenario Current EPW baseline weather file for morphing Closest four HadCM3 Longitude 96x73 grid points to i 0 00 E LONDON GATWICK GBR Latitude 51 15 N LONDON GATWICK GBR i 3 75 W Longitude 0 18 W 4 0 00 E J m A2 scenario for the 2050 s 0 00 E Mar a ca r a Accepw fcc TMY2 Po TMY2 Ia of f Drawy Lg AutoShapesy N w eF Ready Num TA 3 6 Morphing an EPW weather file Before you are able to create a climate change EPW or TMY2 file the original EPW weather file needs to be morphed using the loaded HadCM3 A2 scenario data In order to start this procedure click the button Start Morphing Procedure in the E
6. F tar gz HADCM3_A2a_TMP_DIF tar gz HADCM3_A2a_WIND_1980 tar gz HADCM3_A2a_WIND_DIF tar gz A2b Experiment column 1 A2b Experiment column 2 HADCM3_A2b DSWF_DIF tar gz HADCM3_A2b_ PREC_1980 tar gz HADCM3_A2b PREC_DIF tar gz HADCM3_A2b_RHUM_DIF tar gz HADCM3_A2b_TCLW_DIF tar gz HADCM3_A2b_TEMP_DIF tar gz HADCM3_A2b_TMAX_DIF tar gz HADCM3_A2b_TMIN_DIF tar gz HADCM3_A2b_WIND_1980 tar gz HADCM3_A2b_WIND_DIF tar gz A2c Experiment column 1 A2c Experiment column 2 HADCM3_A2c_DSWF_DIF tar gz HADCM3_A2c_PREC_1980 tar gz HADCM3_A2c_PREC_DIF tar gz HADCM3_A2c_RHUM_DIF tar gz HADCM3_A2c_TCLW_DIF tar gz HADCM3_A2c_TEMP_DIF tar gz HADCM3_A2c_TMAX_DIF tar gz HADCM3_A2c_TMIN_DIF tar gz HADCM3_A2c_WIND_1980 tar gz HADCM3_A2c_WIND_DIF tar gz After unzipping your downloads you should have 76 files inside the HadCM3data folder on your local hard drive This number excludes the original compressed files Please rename the following three files in the HadCM3data folder HADCM3_A2a_TMP_2020 dif gt HADCM3_A2a_TEMP_2020 dif HADCM3_A2a_TMP_2050 dif gt HADCM3_A2a_TEMP_2050 dif HADCM3_A2a_TMP_2080 dif gt HADCM3_A2a_TEMP_2080 dif Climate change world weather file generator QUICK GUIDE A Go to http www ipcc data org sres hadcm3_download html B Download and unzip the files given on the left hand side to the HadCms3data folder C Verify that the HadCm3data folder contains 76 files D R
7. Microsoft Excel CCWorldWeatherGen xls loj x SEF file gdt view Insert Format Tools Data FlashPaper Window Help Adobe PDF OSURBASSAZAA aD 7I e Eha v Oin a a a a arial gt BIU zSSzRBiBx gt we o AE peep Type aquestion for help X EEM a Se B ip Security ELTI i Aa abl m F m eo AB88 A B c D iz G H J K E M N 0 ie Q Fz 8 Summary of combined HadCM3 A2 ensemble climate change predictions for the selected weather site 10 No scenario selected 11 12 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN 13 Daily mean temperature TEMP C 0 00 000 O00 0 00 O00 0O00 0 00 OOO 000 0O00 O00 0 00 0 00 14 Maximum temperature TMAX C 0 00 000 O00 0 00 O00 O00 000 OOO 000 000 000 0 00 0 00 15 Minimum temperature TMIN C ooo 000 O00 000 000 000 000 000 O00 0 00 000 000 0 00 16 Horizontal solar irradiation DSWF W m o00 000 O00 000 000 000 000 OOF 0 00 0 00 000 OOO 0 00 17 Total cloud cover TCLW points 0 00 0 00 O00 0 00 O00 O00 0 00 0 00 O88 0O00 O00 0 00 0 00 18 Total precipitation rate PREC 0 00 000 0 00 000 000 000 0 00 000 000 0 00 0 00 OOO 0 00 19 Relative humidity RHUM points ooo 000 000 000 O00 000 000 000 OOO 0 00 000 000 0 00 20 Mean sea level pressure MSLP hpa ooo 000 000 0 00 O00 000 000 OOO OOO 0 00 000 000 0 00 21 Wind speed WIND 000 000 O00 0 00 0O00 OOO 0 00 000 000 000 000 0 00 0 00 23 Please not
8. NTACT DETAILS University of Southampton Faculty of Engineering and the Environment Sustainable Energy Research Group Highfield Southampton SO17 1BJ UK Email serg soton ac uk Web www energy soton ac uk AUTHORS Mark F Jentsch AbuBakr S Bahaj Patrick A B James
9. PCC assessment reports to appreciate limitations and handle uncertainties of the climate change weather data generated with this tool Further information on the assessment reports can be found on the IPCC s website http www ipcc ch Please contact the authors if you require more information or check the publications section on the website of the Sustainable Energy Research Group at the University of Southampton http Awww energy soton ac uk 5 Troubleshooting a I cannot click any button or field in the Convert File worksheet Macros are not permitted Please follow the descriptions in section 3 2 to permit macros If you are using Microsoft Excel 2003 you need to close the CCWorldWeatherGen tool and reopen it after permitting macros Climate change world weather file generator QUICK GUIDE K Click Start Morphing Procedure to start morphing L Basic information about the morphed weather file is returned to the EPW weather file morphing box M Optional Click the Morphed Weather worksheet tab to view the morphed weather data N Click Generate Climate Change EPW Weather File or Generate Climate Change TMY2 Weather File to create an EPW or TMY2 file ready for use in simulation programs 0 Click TMY2 Weather File from EPW data to transform a present day EPW file into a TMY2 format file Generate Present Day IMPORTANT PLEASE NOTE The basel
10. PW weather file morphing box K The morphing calculations may take several minutes Basic information on the morphed weather file such as weather station name and chosen climate change scenario timeframe is displayed in the EPW weather file morphing box L The morphed weather data can be viewed by clicking the Morphed Weather worksheet tab M 3 7 Generating a climate change EPW or TMY2 weather file Please click Generate Climate Change EPW Weather File or Generate Climate Change TMY2 Weather File in the EPW TMY2 weather file generation box N The weather file generation may take few seconds On completion you will be prompted whether you want to save the weather file It is recommended to save the file as suggested and to accept the proposed filename Your EPW or TMY2 file is now ready for use with standard building performance simulation software packages Climate change world weather file generator PLEASE NOTE Loading the HadCM3 data may take up to 15 minutes QUICK GUIDE G Select HadCM3 A2 scenario ensemble timeframe H Click Load Scenario to load scenario data 1 Averaged monthly HadCM3 A2 climate change predictions are returned to the Summary box J Optional Click the HadCM3 worksheet tab to view the loaded climate change data TIP PLEASE NOTE The Department of Architecture and Urban Design at the University of California Los Angeles provi
11. ciety of Heating Refrigerating and Air Conditioning Engineers 2005 6 Marion W Urban K User s Manual for TMY2s Typical Meteorological Years Golden Colorado USA National Renewable Energy Laboratory 1995 7 Crawley DB Hand JW Lawrie LK Improving the weather information available to simulation programs Building Simulation 99 Conference Kyoto Japan 1999 8 Crawford TM Duchon CE An improved parameterization for estimating effective atmospheric emissivity for use in calculating daytime downwelling longwave radiation Journal of Applied Meteorology 1999 38 4 474 480 9 Perez R Ineichen P Seals R Michalsky J Stewart R Modelling Daylight Availability and Irradiance Components from Direct and Global Irradiance Solar Energy 1990 44 5 271 289 10 Kusuda T Achenbach PR Earth temperature and thermal diffusivity at selected stations in the United States ASHRAE Transactions 1965 71 1 61 74 11 Kasten F Young AT Revised optical air mass tables and approximation formula Applied Optics 1989 28 22 4735 4738 12 Orgill JF Hollands KGT Correlation equation for hourly diffuse radiation on a horizontal surface Solar Energy 1977 19 4 357 359 13 CIBSE CIBSE Guide J Weather solar and illuminance data London The Chartered Institution of Building Services Engineers 2002 14 FreeExtractor v1 44 Disoriented Labs http Awww disoriented com Climate change world weather file generator CO
12. ck Load Scenario H The CCWorldWeatherGen tool then loads the results of the HadCM3 A2a A2b and A2c experiments for the four grid points closest to the chosen weather station E The results can be viewed by selecting the HadCM3 worksheet tab I The averaged results of the four grid points are then averaged for the three experiments and returned to the Summary box above the HadCM3 scenario timeframe selection box J The example below shows the return values for London Gatwick under the A2 emissions scenario in the 2050 s f EPW weather file selection E Microsoft excel ccwortdWeatherGenvis oT sed File Edit View Insert Format Tools Data FlashPaper Window Help Adobe PDF Type a question for help X MP Er ET EEE E R EEEE EE TEESE TE B iFa JOA 2 2 vi SSSR 9 BH He ERT EEL hy Security 3 i viai Bel H g bb Secunty axwiok i Aa abl C m l Soe B a l Fg M Summary of combined HadCM3 A2 ensemble climate change predictions for the selected weather site Selected scenario A2 scenario ensemble for the 2050 s I JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN Daily mean temperature TEMP C 190 1 67 198 137 145 204 23 275 271 213 173 107 1 Maximum temperature TMAX C 170 207 1 41 124 164 200 248 327 358 232 192 115 2 06 Minimum temperature TMIN C 177 193 137 1146 136 168 187 212 245 202 187 1 23 1 73 Horizontal solar irradiation DSWF Wim 2 00 214
13. des a free tool that can be used to graphically display EPW weather file information This tool termed Climate Consultant 4 can be downloaded from http www2 aud ucla edu energy design tools 3 8 Generating a present day TMY2 file In addition to climate change calculations the CCWorldWeatherGen tool also allows you to transform present day EPW weather files into present day TMY2 files Click Generate Present Day TMY2 Weather File from EPW Data in the EPW TMY2 weather file generation box in order to produce such a file O Ej Microsoft Excel CCWorldWeatherGen xls BF File Edit View Insert Format Tools Data 1D 2 id 2 Ba io 7 6 4 Ba M i f rial i0 B Z U gt Security 3 Wd of bd fe gI e zman FlashPaper Window Help Adobe PDF z 6 oOo x Type a question for hep X MR PE EF EE TEENETE B c o AB psep Ae abl jC at m a oe eB M EPW weather file selection 1 Please specify the EPW file you want to transform Select EPW File for Morphing Current EPW baseline weather file for morphing LONDON GATWICK GBR Latitude Longitude Elevation m HadCM3 scenario timeframe selection 2 Please select a HadCM3 A2 scenario ensembe timeframe Load Scenario Closest four HadCM3 96x73 grid points to LONDON GATWICK GBR A2 scenario for the 2050 s EPW weather file mo
14. e that wind speed resides on a 96x72 grid whilst all the other data is on a 96x73 grid 24 25 26 f EPW weather file selection m HadCM3 scenario timeframe selection 27 28 1 Please specify the EPW file you want to transform 2 Please select a HadCM3 A2 scenario ensembe timeframe 29 2 Select EPW File for Morphing 2020s 2050s 2080 s Load Scenario 2 D 33 Current EPW baseline weather file for morphing Closest four HadCM3 Longitude 34 96x73 grid points to 0 00 E 35 LONDON GATWICK GBR Latitude LONDON GATWICK GBR 375 W 36 Longitude 0 00 E 37 Elevation No scenario selected 0 00 E 38 39 X M gt MN Convert File EPW M3 Morphed Weather _ CC EPW CC TMY2 PD TMY2 Ja Hf EDrawy i AutoShapesy y OOA 4 cs Bl Oy rA sagf ea SE SSS aS SrA Climate change world weather file generator QUICK GUIDE B Click Select EPW File for Morphing to load a weather file C Click Open to load the selected weather file D Basic weather file information is returned to the EPW weather file selection box E The closest four HadCM3 grid coordinates are returned to the HadCM3_ scenario timeframe selection box F Optional Click the EPW work sheet tab to view the loaded weather data 3 0 Selecting a HadCM3 A2 scenario ensemble timeframe Select the HadCM3 A2 scenario ensemble timeframe you want to use in the HadCM3 scenario timeframe selection box G Cli
15. ename the three TMP files for the A2a experiment as detailed on the bottom left hand side IMPORTANT PLEASE NOTE The required HadCM3 files cannot be downloaded in a bundle You have to manually download and unzip them file by file as described on the left hand side All HadCM3 files specified in this document MUST be downloaded otherwise the CCWorldWeatherGen tool will not work All files NEED to be inside the HadCM3data directory on your local hard drive Do not create subdirectories 3 Creating climate change weather files from present day weather data 3 1 Decimal and digit grouping symbols in Microsoft Windows The standard decimal symbol needs to be set to dots and the digit grouping symbol to commas To change these settings open the Microsoft Windows Control Pane Click Regional and Language Options and in the following window Customize Change the decimal symbol and the digit grouping symbol if required To avoid issues with other software you should change them back after finishing using this tool 3 2 Permitting macros and setting the auto recover time in Microsoft Excel Macros need to be permitted for CCWorldWeatherGen to work In Microsoft Excel 2003 this needs to be done prior to opening CCWorldWeatherGen Please select Macro from the Tools menu Select Security and choose Low from the Security Level tab inside the message box You may w
16. er files into climate change TMY2 EPW files Acknowledgements amp disclaimer of warranties below CCWorldWeatherGen climate change weather file generator V1 2 manual Specify the HadCM3 data file path C CCWorldWeatherGen HadCM3data KS Summary of combined HadCM3 A2 ensemble climate change predictions for the selected weather site No scenario selected JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC _ ANN Daily mean temperature TEMP C 0 00 000 O00 000 0O00 000 0 00 0 00 000 000 O00 0 00 0 00 Maximum temperature TMAX C 0 00 000 000 000 OOO OOO OOO 000 000 OOO 0 00 OOO 0 00 Minimum temperature TMIN C ooo 000 000 O00 O00 000 000 OOO OOO 0 00 000 000 0 00 Horizontal solar irradiation DSWF W m ooo 000 O80 000 000 000 000 OOO OOO 0 00 0 00 OOO 0 00 Total cloud cover TCLW points 0 00 000 O00 0 00 000 000 0 00 0 00 OOO 0 00 OOO 0 00 0 00 Total precipitation rate PREC ooo 000 000 0 00 O00 000 000 000 000 0 00 000 OOO 0 00 Relative humidity RHUM points ooo 000 O00 000 000 000 000 OOO O00 0 00 000 OOO 0 00 Mean sea level pressure MSLP hpa 000 000 O00 0 00 000 O00 000 000 000 000 000 0 00 0 00 Wind speed WIND 0 00 000 O00 0 00 O00 O00 0 00 0 00 000 0O00 O00 0 00 0 00 Please note that wind speed resides on a 96x72 grid whilst all the other data is on a 96x73 grid F EPW weather file selection HadCM3 scenario timeframe selection 1 Please specify the EPW file you want to
17. hange weather data bases on the methods developed by Belcher Hacker and Powell 3 Special thanks go to Linda Lawrie and Drury Crawley for providing guidance on the appropriate ground temperature equations for generating EPW files Furthermore the work of the following people institutions that was key to compiling this weather file generator tool is also gratefully acknowledged the ASHRAE psychrometric formulae 5 the TMY2 weather file manual by Marion and Urban 6 the EPW weather data description by Crawley Hand and Lawrie 7 the all sky model for calculating downwelling longwave radiation by Crawford and Duchon 8 the models for calculating illuminance and sky luminance parameters from radiation data by Perez Ineichen Seals Michalsky and Stewart 9 the ground temperature equation by Kusuda and Achenbach 10 the optical air mass tables provided by Kasten and Young which were used for calculating illuminance and sky Climate change world weather file generator luminance parameters 11 the Orgill and Hollands 12 correlation which was used for calculating diffuse horizontal radiation and CIBSE Guide J which was used for calculating direct normal solar radiation 13 The self extracting download file was generated using FreeExtractor v1 44 14 This work has been undertaken within the project Climate change implications for buildings and their technical services in tropical and moderate climates under the PMI2 Connec
18. ine timeframe to which the relative changes of the HadCM3 climate change experiments compare is the time period from 1961 to 1990 2 Some EPW weather files may represent later timeframes This means that climate change weather files generated with such data will OVERESTIMATE climate change impacts since the changes of the HadCM3 scenarios relative to the 1970 s are used on weather data from a later period Users of this tool should be aware of this fact when using it b receive an error message whilst loading the HadCM3 weather data This can have several reasons Close the error message and check the following b1 Check whether the system standard decimal symbol is set to dots and the digit grouping symbol to commas as described in section 3 1 b2 Check whether you have downloaded all the required HadCM3 data and whether the data path indicated at the top of the Convert File worksheet is correct To download any missing HadCM3 data files follow the instructions in section 2 2 b3 Check whether you have renamed the mean temperature files of the A2a experiment as detailed in section 2 2 c Microsoft Excel appears to hang while loading the HadCM3 data Check whether the auto recover time in Microsoft Excel has been increased to 20 minutes To change the auto recover time follow the instructions in section 3 2 d clicked Cancel after generating my EPW TMY2 file How can I save the file
19. ish to change the security level back after you have finished using the CCWorldWeatherGen tool in order to prevent potentially unsafe macros from being executed on your system Now open CCWorldWeatherGen If you are using Microsoft Excel 2007 please open CCWorldWeatherGen and select Options at the end of the Security Warning message in the task bar Inside the following message box select Enable this content and click OK The auto recover time needs to be set to at least 20 minutes In Microsoft Excel 2003 select Options from the Tools menu Then select the Save tab and change Save AutoRecover info to 20 minutes In Microsoft Excel 2007 click the Office Button and then Excel Options Select the Save tab and change Save AutoRecover info to 20 minutes x Getting started After closing the entry splash screen your screen should look as shown below Make sure that the HadCM3 data file path A corresponds to the download location of the HadCM3 data The default path is C CCWorldWeatherGen HadCM3data PESricrosoe ecet ccworiaweatnercenais rca EF Eile Edit View Insert Format Tools Data FlashPaper Window Help Adobe PDF Type a question for help X eA EEA EET EERE E I a EEEE TEESE hea B i Arial Print HP Color Inkjet P1700 zE no E z a A Paossp ip o searty 21 3 R B i Aa abl m A O m ot B AB88 82 f For transforming EPW weath
20. rphing 3 K 3 Click button to start morphing procedure i Start Morphing Procedure Current morphed EPW weather file Morphed EPW file for LONDON GATWICK GBR HadCM3 A2 emissions senario ensemble for the 2050 s M EPW TMY2 weather file generation 4 Click the appropriate button for EPW TMY2 file generation Generate Climate Change EPW Weather File O Generate Climate Change TMY2 Weather File Y o create a TMY2 file of the original EPW file click the button below Generate Present Day TMY2 Weather File form EPW data T M oovriaht notes and disclai i Convert Hie EpW HeeM Morphed Weather JECC EPW cc TMY2 f PD TMY2 Ish i Draw Lg AutoShapesy S on 423 08 9 4 4 zFaah Ready 4 Underlying methodology of the CCWorldWeatherGen tool The core calculation methodology used for this tool is based on work published by CIBSE 3 as well as previous work by the authors of this tool 4 Some basic information on key literature used for creating the CCWorldWeatherGen tool can be found in the acknowledgements and references sections at the end of this document The intention of this manual is to describe the functionality of the CCWorldWeatherGen tool However a journal paper detailing the underlying methodology of this weather file generation tool is in preparation CCWorldWeatherGen users are requested to familiarise themselves with the I
21. rs DDC Data Distribution Centre of the IPCC Energy Plus EPSr Weather HadCM3 Hadley Centre Coupled Model version 3 EPW Intergovernmental Panel on Climate Change Third Assessment Report of the IPCC Typical Meteorological Year 2 PLEASE NOTE The CCWorldWeatherGen tool has been tested on computers running Microsoft Windows XP and Microsoft Windows Vista operating systems However the authors do not take responsibility for any compatibility issues on these or other platforms IMPORTANT PLEASE NOTE The CCWorldWeatherGen tool does not support any other weather data formats than EPW as data input 2 2 Downloading the HadCM3 climate change scenario data Open your browser and go to http www ipcc data org sres hadcm3_download html to open the IPCC DDC HadCM3 climate scenario data download website Download the files listed below Unzip the files with your file compression utility and save the uncompressed files in the folder HadCM3data inside the directory CCWorldWeatherGen on your local hard drive The installation default path is C CCWorldWeatherGen HadCM3aata The files thant need to be downloaded from the table on the IPCC DDC website are A2a Experiment column 1 A2a Experiment column 2 HADCM3_A2a_ DSWF_DIF tar gz HADCM3_A2a_MSLP_DIF tar gz HADCM3_A2a_ PREC_1980 tar gz HADCM3_A2a_PREC_DIF tar gz HADCM3_A2a_ RHUM_DIF tar gz HADCM3_A2a_TMAX_DIF tar gz HADCM3_A2a_TMIN_DI
22. t research programme funded by the British Council This project is a joint project between the Sustainable Energy Research Group at the University of Southampton and the Department of Mechanical Engineering at the University of Malaya in Kuala Lumpur Special thanks go to Leonidas Bourikas for investigating models for deriving diffuse horizontal radiation from global horizontal radiation and Dr Yau Yat Huang Choo Khean Chang and Muhammad Hafiz Azizan for testing the climate change data under tropical climates This tool represents a further development of previous work conducted under the UK Government Engineering and Physical Sciences Research Council EPSRC funded research programme Innovation in Design Construction amp Operation of Buildings for People 9 a References 1 Met Office Hadley Centre Exeter UK www metoffice gov uk climatechange science hadleycentre 2 IPCC Data Distribution Centre HadCM3 climate scenario data download page www ipcc data org sres hadcm3_download html 3 Belcher SE Hacker JN Powell DS Constructing design weather data for future climates Building Services Engineering Research and Technology 2005 26 1 49 61 4 Jentsch MF Bahaj AS James PAB Climate change future proofing of buildings Generation and assessment of building simulation weather files Energy and Buildings 2008 40 12 2148 2168 5 ASHRAE Chapter 6 Psychrometrics ASHRAE Handbook Fundamentals Atlanta American So
23. transform 2 Please select a HadCM3 A2 scenario ensembe timeframe Select EPW File for Morphing 2020s 2080s 2080 s Load Scenario x M 4 gt MN Convert File EPW Hadcm3 _ Morphed Weather ZCC EPW cc Tmy2 PD TMy2 Ia gt If iow iy Autoshesy SS OOM 4 aaa Alaa Ready NUM Z Climate change world weather file generator IMPORTANT PLEASE NOTE CCWorldWeatherGen_ will not work if steps 3 1 and 3 2 have not been addressed appropriately QUICK GUIDE A Check whether the HadCM3 data path is correct 3 4 Selecting an EPW weather file Click the button Select EPW File for Morphing in the EPW weather file selection box B The standard Open window appears Select a weather file from your hard drive and click the Open button C Loading the file may take a few seconds as some calculations are conducted while loading Basic information on the loaded file such as weather station name and location details latitude longitude elevation are displayed in the EPW weather file selection box D The coordinates of the four HadCM3 grid points closest to the chosen weather station are displayed in the HadCM3 scenario timeframe selection box E The loaded weather file data can be viewed by clicking the EPW worksheet tab F E Microsoft Excel CCWorldWeatherGen xls ioj xj iE Bile Edit View Insert Format Tools Data FlashPaper Window Help Adobe POF Type a question for hep X
24. y for any compatibility issues on these or other platforms b A present day EPW file see section 2 1 c Summary data of the HadCM3 A2 climate change model predictions which can be downloaded free of charge from the IPCC DDC see section 2 2 2 Preparing the CCWorldWeatherGen tool for use After downloading the file CCWorldWeatherGen exe please run it for installation of the CCWorldWeatherGen tool The file is self extracting It is NOT RECOMMENDED to change the default installation path C CCWorldWeatherGen A program folder called CCWorldWeatherGen is added to the Windows Start Menu during installation The CCWorldWeatherGen tool can be launched right after installation However before being able to use it you need to make sure that you are in possession of a present day EPW file and have obtained the required HadCM3 data 2 1 Obtaining EPW weather files Many building performance simulation packages include present day weather data in EPW format In addition the U S Department of Energy Energy Efficiency and Renewable Energy provides weather data for more than 2100 locations throughout the world This data is free of charge and can be accessed via the following web link http apps1 eere energy gov buildings energyplus cfm weather_data cfm Climate change world weather file generator Manual Abbreviations used in this document CIBSE Chartered Institution of Building Services Enginee
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