Database as data server for data visualization during field campaigns Jim Johnson Atmospheric Chemistry Group

Typical Field Campaigns Multi-platform, Ship, planes, Land Stations Multi-platform, Ship, planes, Land Stations Operation Center, Generally on Land Operation Center, Generally on Land

On the “Ship” Generally 30 to 100 measured parameters Generally 30 to 100 measured parameters Most are 1- Dimensional Most are 1- Dimensional Several are 2-Dimensional (altitude – time) Several are 2-Dimensional (altitude – time)

Data Visualization Needs Science Need – Are we seeing interesting things in the Atmosphere? Science Need – Are we seeing interesting things in the Atmosphere? Are we in a plume? Are we in a plume? Are we seeing variability in time and space? Are we seeing variability in time and space? Which parameters are correlated? Which parameters are correlated? Engineering Need – Are we getting “good Data”? Does anything need to be fixed? Engineering Need – Are we getting “good Data”? Does anything need to be fixed?

NEAQS 2004 Solution Web based plotting systems Web based plotting systems On the ship Intranet On the ship Intranet On the internet on our server On the internet on our server

Technical Details Data are held in a MySQL database (on saga or erwin Data are held in a MySQL database (on saga or erwin Web Form to select Parameter(s) and time or spatial period (PHP used to read form) Web Form to select Parameter(s) and time or spatial period (PHP used to read form) Ferret is used to generate the gif plot Ferret is used to generate the gif plot Data are entered to the database each minute Data are entered to the database each minute Date (minute averages were transmitted each hour by Iridium modem) Date (minute averages were transmitted each hour by Iridium modem)

DataBase Advantages Data can easily be selected. Data can easily be selected. New parameters can be added. New parameters can be added. Many different ways can be used to enter data. Many different ways can be used to enter data.