کنفرانس بین المللی GIS ٬محیط زیست٬ توسعه پایدار آوریل 2007

1 April *   NEW   *	Sydney, Australia	Mapping & 3D Information Extraction from High Resolution Sat. Imagery, Contact: [e-mail]
2-3 April *   NEW   *	Sydney, Australia	Australian Water Summit Sydney 2007, Contact: Shahida Sweeney, [e-mail]
2-5 April *   NEW   *	Amman, Jordan	6th International Symposium on Eastern Mediterranean Geology and 9th International Geological Conference of the Jordanian Geologists Association
4-6 April	Hong Kong, China	Location Asia 2007, Contact: Email
9-11 April	Dubai,  UAE	Map Middle East   Contact: [e-mail]
16-19 April	Ottawa, Canada	April 2007 OGC Technical Committee Meeting
17-20 April	Graz, Austria	Ingenieurvermessung 2007 - 15th International Course on Engineering Surveying
18-19April	Moscow, Russia	Aerial and Satellite Methods and GIS in Silviculture and Forestry - 4th Russian Nation-Wide Conference, (with international inputs), Contact: [e-mail].
23-25April *   NEW   *	Al-Khobar, Saudi Arabia	2nd National GIS Symposium in Saudi ArabiaAbstract deadline: December 2, 2006.Contact: [e-mail].
23-27April	Montreux, Switzerland	Envisat Symposium
25-27April	Novosibirsk, Russia	GEO-SIBERIA 2007 The Third International Exhibition and Scientific Congress, E-mail: [e-mail] and [e-mail]