Sebetulnya ISRO (Lapan-nya India) dapat melihat golombang tsunami, karena punya Meteosat dan Insat. Akhirnya terjadi saling menyalahkan antara ISRO dengan IMD (BMG-nya India). Salam, RM
----------------------------------- ISRO saw the killer wave, but chose to reamin silent Tuesday December 28 2004 08:45 IST BANGALORE: A day after the killer tsunami cut a swathe of destruction on the country's eastern seaboard, questions have been raised over whether the Indian Space Research Organisation (ISRO) could have done more to alert the Indian Meteorological Department (IMD), the nodal agency for issuing weather alerts, and perhaps save hundreds of lives. Though ISRO's weather satellites could not have imaged the tsunami's early phases, they must have recorded the later surface manifestations and could have alerted the nation, at least in time before the powerful waves struck the Indian coast. Did our satellite system image the tsunami? ISRO officials here took a defensive posture by evading this crucial question. But according to a scientist who spoke on condition of anonymity, ``Our satellite system is capable of imaging a tsunami as it becomes manifest on the ocean surface, though not at its origin.'' Many space scientists believe that there could have been some ``harbinger'' indications of the tsunami. Tsunamis, caused by seabed disturbances, initially travel like undercurrents, making it difficult for satellite imaging in their early phases. But as the undercurrent approaches shallower regions, the waves appear on the surface, satellite images of which, had they reached the IMD, could have generated an alert at least an hour before the disaster struck the coastline. IMD officials in the City pointed out that though ISRO satellites generate real-time images, the Department's central office in Delhi depends entirely on the space agency for timely access to this data. ``The Meteosat - Kalpana, which was launched in 2003 - and Insat-3A are the satellites which are deployed for meteorological applications. We normally receive, via IMD Delhi, real-time data on cyclones, low pressure areas and cloud storms. The IMD centres in the country can only forward the prediction and forecast received from Delhi,'' explained the Director of IMD Bangalore, Dr. Anand Koppar. Another expert rued the lack of a definitive technology to predict earthquakes. ``Such cases involve displacement of thousands of people at a short notice. We cannot evacuate people based on a forecast that is not 100 percent reliable.'' he said. TSUNAMI DYNAMICS A tsunami travels at a speed proportional to the depth of the sea. At deeper regions, it travels faster but the amplitude is lower. A huge mass of water at a high speed gains enormous kinetic energy. As it nears shallow waters the speed decreases and hence the amplitude increases to dissipate its energy. As a result, cascades of huge walls of water slam the coast. 30 Dec 2004 ------------------------ Yahoo! Groups Sponsor --------------------~--> $4.98 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/Q7_YsB/neXJAA/yQLSAA/BRUplB/TM --------------------------------------------------------------------~-> *************************************************************************** Berdikusi dg Santun & Elegan, dg Semangat Persahabatan. Menuju Indonesia yg Lebih Baik, in Commonality & Shared Destiny. www.ppi-india.uni.cc *************************************************************************** __________________________________________________________________________ Mohon Perhatian: 1. Harap tdk. memposting/reply yg menyinggung SARA (kecuali sbg otokritik) 2. Pesan yg akan direply harap dihapus, kecuali yg akan dikomentari. 3. Lihat arsip sebelumnya, www.ppi-india.da.ru; 4. Forum IT PPI-India: http://www.ppiindia.shyper.com/itforum/ 5. Satu email perhari: [EMAIL PROTECTED] 6. No-email/web only: [EMAIL PROTECTED] 7. kembali menerima email: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/ppiindia/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
