KIV BHZ D=10° Mw=7.4
VOLUME XVIII n NUMBER 1
CONTENTS
Planet Earth On-Line
Low-cost, high-bandwidth, global communication systems are ushering in a new era for seismology. We now design personal global data streams, assemble virtual seismic networks, and analyze local ground motion in real-time from across the planet. Network operators remotely monitor data collection and, with only a few keystrokes, can re-center the mass on a seismometer buried within a vault thousands of miles away. In museums and classrooms, students watch seismic waves propagate around the world as interactive global seismicity maps inform them of earthquakes within minutes of their occurrence.
This IRIS Newsletter features articles that describe real-time data systems and several of their applications. In many ways, these articles mark the change of emphasis in our data-driven science from collection to selection. The next generation of seismologists will have global data available in real-time at nominal cost. Many researchers need never know (nor for that matter particularly care) about the mechanics of how data are being collected and transmitted, let alone how the stations are installed, operated and maintained. For them, the new challenge will be the coherent integration and use of these vast and continually evolving streams of sensor data.
Real-time data are collected at Toro Peak in southern California from remote seismic stations using radio telemetry for PASSCAL Broadband Array tests and the ANZA Broadband Seismic Network operations. The data are sent through the Internet using the microwave link shown in the photo. [photo: G. Offield]
SPRING/SUMMER 1999
1
Planet
Earth On-Line
2
Live
Seismograms from the Net
Charles Hutt and Harold Bolton
5
The
IDA Near Real-Time System
Peter Davis, et al
7
Virtual
Seismic Networks
Frank Vernon and Terry Wallace
9
Building
Support for the Geosciences
David Applegate
11
Congressional
Natural Hazards Caucus
12
Avalanche
Hazards in Khibiny Massif
Pavel Chernouss, et al
14
New
Format for the IRIS Workshop
16
Seismologists
Learning to Teach the Teachers E&O Workshop
17
Teach
For America Intern at IRIS
Bella
Desai
18
IRIS
Brings Seismology to Capitol Hill, COSMOS
19
Agreement
Signed on US Russian Cooperation
