November 15, 2003
The Second International Workshop
on Sandstorms and Associated Dustfall
at Nagoya, Japan (Nov. 13-15, 2003)
Prospectus
Dust transport modeling plays an important role in understanding the recent increase of Asian Dust episodes. Several dust models have been developed in several research institutes and government agencies independently. Their numerical results either look very similar or different. Those disagreements are caused by difference in dust modules (concepts and basic mechanisms) and atmospheric models (meteorological and transport models). Therefore common understanding of performance and uncertainty of dust erosion and transport models in the Asian region becomes very important.
At the 2nd ADEC (Aeolian Dust Experiment on Climate Impact) workshop at Xian China in January, 2003, the importance of intercomparison of the present Dust Models was discussed. We had reached an agreement to pursue this activity. According to this agreement, the implementation of a plan for Dust Model Intercomparison activity was discussed at MRI, Tsukuba on Feb. 12, 2003 among the following members: Prof. I. Uno (Kyusyu Univ., Japan), Dr. M. Mikami (MRI, Japan), Prof. Y. Shao (Hong-kong City Univ., China), Dr. Y.-S.Chun (KMA/METRI, Korea), Mr. M. Chiba, Dr. N. Seino, and Mr. A. Yamamoto (MRI, Japan). Based on the discussion, we proposed a special session of dust model intercomparison as an activity of the ADEC project during the Second International Workshop on Sandstorms and Associated Dustfall at Nagaoya, Japan. Although this research activity will be organized by ADEC, we truly welcome participation from a variety of dust modeling research groups. Proposed Dust Intercomparison Experiment Participants of this special session must simulate the same dust episode described below and submit the results to the organizers of the special session. At the special session, the results of each participant will be presented, and then the organizers will make a summarizing report of each dust model.
Dust Model Periods
Two study periods have been selected as follows:
Period 1: March 15 to 25 in 2002 (ten days)
Period 2: April 04 to 14 in 2002 (ten days)
(Period 3: November 07 to 14 in 2002 (seven days))
Both Periods 1 and 2 have been selected because very dense dust onsets were observed within the wide range of China, Korea and Japan. Period 3 is optional ----- if the participant can cover this period.
Meteorological field
We do not specify the meteorological model field (or driver). Each participant can use his or her own meteorological model to execute the dust model. Participants are required to submit their meteorological field at specific locations and pressure levels.
Dust field
Each participant must use their own dust model and submit the model descriptions (according to the organizer's specification sheet) and dust concentration field.
Dust Model Domain
Dust transport model should include Gobi desert, and if possible please include Taklimakan as a potential dust source region. East boundary of model domains must cover all of Japan area.
Monitoring data
We will use several observation data to compare the model calculation.
The purpose of this model intercomparison workshop is not to score the model performance; however, it will be important to examine some of the model comparisons using observation data. We are now thinking of preparing:
Satellite Image GMS, TOMS Aerosol Index, SeaWIFS ADNet Lidar Networks (Lidar observation at Beijing, Nagasaki and Tsukuba)
Surface Measurement TSP (or PM10) data, China Korea and Japan sites.
ADEC IOP1 data set is also available for Period 2. This data can be downloaded from the ADEC website (http://www.aeoliandust.com). We especially welcome the surface observation data to be used in this workshop. If you can provide such observation data, please contact the organizers of this workshop.
Required Information and Model Output
1) Model Descriptions
We need a detailed dust model description to compare the simulation results. Please download the excel sheet and fill out the form and e-mail to session organizer. [[Click here to download the model description template sheet]
2) Observation data
a) WMO GTS SYNOP data
GTS SYNOP data for model comparison is prepared by Mr. Y. Kurosaki (MRI, Japan). Download of data set is restricted for DMIP participants only (need passwd). Contents of SYNOP data set is self-descriptive and you can download from here. [Click here]
Note that the meaning of the current weather code in the file is,
508 no special weather to report
509 no observation
510 current and past weather is missing
511 missing observation
and other codes are based on the WMO standard [Click here for more details of ww code].
b) NIES Lidar data set becomes available for Beijing, Suwon, Nagasaki and Tsukuba.
To view the Lidar exticition profiles, click here.
Degital data from Mie scattering Lidar (from Dr. N. Sugimoto and A. Shimizu of National Institute for Environmental Studies) are also available only for DMIP purpose.
You can access to the data set [click here /password required].
The details of this data set can be found in readme.txt
c) OPC and SPM data (we are planning to prepare)
3) Model output Part 1
We need the following model output at specified format. Please read carefully and please set correct file name and e-mail to session organizer(iuno@riam.kyushu-u.ac.jp).
These daily plots are necessary for three specified period of model comparison, i.e.,
Period 1: March 15 to 25 in 2002 (ten days)
Period 2: April 04 to 14 in 2002 (ten days)
(Period 3: November 07 to 14 in 2002 (seven days), if possible)
a) Surface level dust concentration (d<40um) plot by GIF file (0 UTC daily plot)
[Click] here for sample model domain and sample plot. If possible please convert to Longitude-latitude grid (1x1deg resolution). Please set the contour intervals at 20,40,80,160,320,640,1280, 2560, 5120 ug/m3 and set the similar color used in sample plot. File name must be specified as
Groupname_SURF_YYMMDDHH.gif
here, please use participant name as a groupname of file.
All the files should be merged by tar+gz, and send by e-mail to organizer.
b) 700hPa dust concentration (d<40um) plot by GIF file (0 UTC daily plot)
[Click] here for sample plot. Contour interval and color is same as surface plot. File name must be specified as
Groupname_700h_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
c) vertical column loading of dust (d<40um) by Gif File (0 UTC daily plot)
[Click] here for sample plot. Please set the contour interval 20,40,80,160,320,640,1280, 2560 mg/m2 and set the similar color used in sample GIF plot. File name must be specified as
Groupname_DL_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
d) Dust emission rate (d<40um) by Gif File (0 UTC daily plot)
[Click] here for sample plot. Please set the contour interval5,10,20,40,80,160 g/m2/hr and set the similar color used in sample GIF plot. If possible, please plot surface wind vector as show in sample figures. File name must be specified as
Groupname_EMIS_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
4) Model output Part 2
a) Surface time series data
We want to compare surface level output into the single plot. Please extract the simulated surface time series at 7 stations;
We want to have WS, WD, Temp, RH, potential temperature and dust concentration (d<40um) with 3 hour intervals. The necessary information can be found in sample excel file [Click here to get sample file]. Please prepare
the necessary data in Excel file (or similar text file). File name must be specified as,
groupname_(station name)_surf.xls
b) Time-Height Cross section data
At two stations
We want to compare the time-height cross-section of dust and meteorology.
Please prepare the model time-height information for WS (m/s), WD(deg), Potential temperature (K) and Dust concentration (d<40um; ug/m3) with 3 hour interval. You can see the sample file [Click here to get sample file]. File name must be
groupname_(station name)_th.xls
If possible, please also prepare the time-height cross-section plot of dust and potential temperature based on the our sample file [Click here for sample plot]. If you can prepare the plot, please specify the file name as,
groupname_(station name)_th.gif
Tentative schedule
Latest information will be announced in the website of DMIP (http://cfors.riam.kyushu-u.ac.jp/~cfors/DMIP/DMIP.html). This web page must be ready by the end of July. We will make a link from the ADEC web page.
August 15, 2003 Further information such as instructions and reporting procedures will be announced in the website and through the ADEC mailing list.
October 20, 2003 Necessary monitoring data will be available for all participants.
November 3, 2003 Deadline of the submission of model results and descriptions.
November 15, 2003 ADEC Special Session of Dust Model Inter-comParison (DMIP) will be held at Nagoya. At the special session, the results of each participant will be introduced. The contents of workshop will be as follows;
Opening address
Participants model outline by organizers
Presentation of each model results by each participant
Preliminary analysis results of participant model output by organizers
Preliminary results of dust model scheme comparison by Z. Wang and I. Uno
Discussion
March 2004 A working group will compile the results. If necessary and important, a joint-authored paper will be prepared and submitted for publication.
Current Participants
At this moment, 8 groups have decided to join the dust model intercomparion exercise with their model. New groups are encouraged to join it!
Workshop Organizers
Itsushi Uno, Prof.
Research Institute for Applied Mechanics Kyushu University
Kasuga Park 6-1, Kasuga 816-8580, Fukuoka, Japan
Tel. +81-92-583-7771 Fax. +81-92-583-7774
E-mail:iuno@riam.kyushu-u.ac.jp
Dr. Masao Mikami
Meteorological Research Institute, Japan Meteorological Agency Tsukuba, Ibaraki 311-0105
TEL +81-298-53-8623 / FAX +81-298-55-7240
E-mail: mmikami@mri-jma.go.jp
DMIP Mailing List
For persons who plan to join DMIP and/or have interest in it, we recommend joining the DMIP maling list. To register, please contact ADEC Secretariat
(mail to: adecsecrt@mri-jma.go.jp).
More details of The Second International Workshop on Sandstorms and Associated Dustfall can be found atVisit to http://stelab.nagoya-u.ac.jp/~kimys
Dust transport modeling plays an important role in understanding the recent increase of Asian Dust episodes. Several dust models have been developed in several research institutes and government agencies independently. Their numerical results either look very similar or different. Those disagreements are caused by difference in dust modules (concepts and basic mechanisms) and atmospheric models (meteorological and transport models). Therefore common understanding of performance and uncertainty of dust erosion and transport models in the Asian region becomes very important.
At the 2nd ADEC (Aeolian Dust Experiment on Climate Impact) workshop at Xian China in January, 2003, the importance of intercomparison of the present Dust Models was discussed. We had reached an agreement to pursue this activity. According to this agreement, the implementation of a plan for Dust Model Intercomparison activity was discussed at MRI, Tsukuba on Feb. 12, 2003 among the following members: Prof. I. Uno (Kyusyu Univ., Japan), Dr. M. Mikami (MRI, Japan), Prof. Y. Shao (Hong-kong City Univ., China), Dr. Y.-S.Chun (KMA/METRI, Korea), Mr. M. Chiba, Dr. N. Seino, and Mr. A. Yamamoto (MRI, Japan). Based on the discussion, we proposed a special session of dust model intercomparison as an activity of the ADEC project during the Second International Workshop on Sandstorms and Associated Dustfall at Nagaoya, Japan. Although this research activity will be organized by ADEC, we truly welcome participation from a variety of dust modeling research groups. Proposed Dust Intercomparison Experiment Participants of this special session must simulate the same dust episode described below and submit the results to the organizers of the special session. At the special session, the results of each participant will be presented, and then the organizers will make a summarizing report of each dust model.
Dust Model Periods
Two study periods have been selected as follows:
Period 1: March 15 to 25 in 2002 (ten days)
Period 2: April 04 to 14 in 2002 (ten days)
(Period 3: November 07 to 14 in 2002 (seven days))
Both Periods 1 and 2 have been selected because very dense dust onsets were observed within the wide range of China, Korea and Japan. Period 3 is optional ----- if the participant can cover this period.
Meteorological field
We do not specify the meteorological model field (or driver). Each participant can use his or her own meteorological model to execute the dust model. Participants are required to submit their meteorological field at specific locations and pressure levels.
Dust field
Each participant must use their own dust model and submit the model descriptions (according to the organizer's specification sheet) and dust concentration field.
Dust Model Domain
Dust transport model should include Gobi desert, and if possible please include Taklimakan as a potential dust source region. East boundary of model domains must cover all of Japan area.
Monitoring data
We will use several observation data to compare the model calculation.
The purpose of this model intercomparison workshop is not to score the model performance; however, it will be important to examine some of the model comparisons using observation data. We are now thinking of preparing:
Satellite Image GMS, TOMS Aerosol Index, SeaWIFS ADNet Lidar Networks (Lidar observation at Beijing, Nagasaki and Tsukuba)
Surface Measurement TSP (or PM10) data, China Korea and Japan sites.
ADEC IOP1 data set is also available for Period 2. This data can be downloaded from the ADEC website (http://www.aeoliandust.com). We especially welcome the surface observation data to be used in this workshop. If you can provide such observation data, please contact the organizers of this workshop.
Required Information and Model Output
1) Model Descriptions
We need a detailed dust model description to compare the simulation results. Please download the excel sheet and fill out the form and e-mail to session organizer. [[Click here to download the model description template sheet]
2) Observation data
a) WMO GTS SYNOP data
GTS SYNOP data for model comparison is prepared by Mr. Y. Kurosaki (MRI, Japan). Download of data set is restricted for DMIP participants only (need passwd). Contents of SYNOP data set is self-descriptive and you can download from here. [Click here]
Note that the meaning of the current weather code in the file is,
508 no special weather to report
509 no observation
510 current and past weather is missing
511 missing observation
and other codes are based on the WMO standard [Click here for more details of ww code].
b) NIES Lidar data set becomes available for Beijing, Suwon, Nagasaki and Tsukuba.
To view the Lidar exticition profiles, click here.
Degital data from Mie scattering Lidar (from Dr. N. Sugimoto and A. Shimizu of National Institute for Environmental Studies) are also available only for DMIP purpose.
You can access to the data set [click here /password required].
The details of this data set can be found in readme.txt
c) OPC and SPM data (we are planning to prepare)
3) Model output Part 1
We need the following model output at specified format. Please read carefully and please set correct file name and e-mail to session organizer(iuno@riam.kyushu-u.ac.jp).
These daily plots are necessary for three specified period of model comparison, i.e.,
Period 1: March 15 to 25 in 2002 (ten days)
Period 2: April 04 to 14 in 2002 (ten days)
(Period 3: November 07 to 14 in 2002 (seven days), if possible)
a) Surface level dust concentration (d<40um) plot by GIF file (0 UTC daily plot)
[Click] here for sample model domain and sample plot. If possible please convert to Longitude-latitude grid (1x1deg resolution). Please set the contour intervals at 20,40,80,160,320,640,1280, 2560, 5120 ug/m3 and set the similar color used in sample plot. File name must be specified as
![[Click]](Gif/DUST.jpg){kind=link}
here, please use participant name as a groupname of file.
All the files should be merged by tar+gz, and send by e-mail to organizer.
b) 700hPa dust concentration (d<40um) plot by GIF file (0 UTC daily plot)
[Click] here for sample plot. Contour interval and color is same as surface plot. File name must be specified as
![[Click]](Gif/DUSTz700hp.jpg){kind=link}
Groupname_700h_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
c) vertical column loading of dust (d<40um) by Gif File (0 UTC daily plot)
[Click] here for sample plot. Please set the contour interval 20,40,80,160,320,640,1280, 2560 mg/m2 and set the similar color used in sample GIF plot. File name must be specified as
![[Click]](Gif/DUSTcol.jpg){kind=link}
Groupname_DL_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
d) Dust emission rate (d<40um) by Gif File (0 UTC daily plot)
[Click] here for sample plot. Please set the contour interval5,10,20,40,80,160 g/m2/hr and set the similar color used in sample GIF plot. If possible, please plot surface wind vector as show in sample figures. File name must be specified as
![[Click]](Gif/dustflx.jpg){kind=link}
Groupname_EMIS_YYMMDDHH.gif
All the files should be merged by tar+gz, and send by e-mail to organizer.
4) Model output Part 2
a) Surface time series data
We want to compare surface level output into the single plot. Please extract the simulated surface time series at 7 stations;
|
We want to have WS, WD, Temp, RH, potential temperature and dust concentration (d<40um) with 3 hour intervals. The necessary information can be found in sample excel file [Click here to get sample file]. Please prepare
the necessary data in Excel file (or similar text file). File name must be specified as,
groupname_(station name)_surf.xls
b) Time-Height Cross section data
At two stations
|
We want to compare the time-height cross-section of dust and meteorology.
Please prepare the model time-height information for WS (m/s), WD(deg), Potential temperature (K) and Dust concentration (d<40um; ug/m3) with 3 hour interval. You can see the sample file [Click here to get sample file]. File name must be
groupname_(station name)_th.xls
If possible, please also prepare the time-height cross-section plot of dust and potential temperature based on the our sample file [Click here for sample plot]. If you can prepare the plot, please specify the file name as,
groupname_(station name)_th.gif
Tentative schedule
Latest information will be announced in the website of DMIP (http://cfors.riam.kyushu-u.ac.jp/~cfors/DMIP/DMIP.html). This web page must be ready by the end of July. We will make a link from the ADEC web page.
August 15, 2003 Further information such as instructions and reporting procedures will be announced in the website and through the ADEC mailing list.
October 20, 2003 Necessary monitoring data will be available for all participants.
November 3, 2003 Deadline of the submission of model results and descriptions.
November 15, 2003 ADEC Special Session of Dust Model Inter-comParison (DMIP) will be held at Nagoya. At the special session, the results of each participant will be introduced. The contents of workshop will be as follows;
Opening address
Participants model outline by organizers
Presentation of each model results by each participant
Preliminary analysis results of participant model output by organizers
Preliminary results of dust model scheme comparison by Z. Wang and I. Uno
Discussion
March 2004 A working group will compile the results. If necessary and important, a joint-authored paper will be prepared and submitted for publication.
Current Participants
At this moment, 8 groups have decided to join the dust model intercomparion exercise with their model. New groups are encouraged to join it!
- Meteorological Research Institute of Japan Met. Agency Group (Chiba,Mikami group) ,
- Kyushu Univerisy (Uno) and Institute of Atmos. Physics, China (Wang) ,
- Korean Meteorological Research Institute (Dr.Y.S. Chun) ,
- Yaping Shao and Eunjoo Jung (The University of New South Wales, Australia),
- Dr. Slobodan Nickovic of Marta,
- Naval Research Laboratory of USA (Dr. Westphal and Dr. Liu),
- Xiao-Ye ZHANG and Sunling Gong,
- Dr. Zhenxin Song (China Meteorolgical Administation)
Workshop Organizers
Itsushi Uno, Prof.
Research Institute for Applied Mechanics Kyushu University
Kasuga Park 6-1, Kasuga 816-8580, Fukuoka, Japan
Tel. +81-92-583-7771 Fax. +81-92-583-7774
E-mail:iuno@riam.kyushu-u.ac.jp
Dr. Masao Mikami
Meteorological Research Institute, Japan Meteorological Agency Tsukuba, Ibaraki 311-0105
TEL +81-298-53-8623 / FAX +81-298-55-7240
E-mail: mmikami@mri-jma.go.jp
DMIP Mailing List
For persons who plan to join DMIP and/or have interest in it, we recommend joining the DMIP maling list. To register, please contact ADEC Secretariat
(mail to: adecsecrt@mri-jma.go.jp).
More details of The Second International Workshop on Sandstorms and Associated Dustfall can be found at