How does the radar work?
NEXRAD (Next Generation Radar) obtains weather information (precipitation and wind) based upon returned energy. The radar emits a burst of energy (green). If the energy strikes an object (rain drop, bug, bird, etc), the energy is scattered in all directions (blue). A small fraction of that scattered energy is directed back toward the radar.
This reflected signal is then received by the radar during its listening period. Computers analyze the strength of the returned pulse, time it took to travel to the object and back, and phase shift of the pulse. This process of emitting a signal, listening for any returned signal, then emitting the next signal, takes place very fast, up to around 1300 times each second.
NEXRAD spends the vast amount of time "listening" for returning signals it sent. When the time of all the pulses each hour are totaled (the time the radar is actually transmitting), the radar is "on" for about 7 seconds each hour. The remaining 59 minutes and 53 seconds are spent listening for any returned signals.
The ability to detect the "shift in the phase" of the pulse of energy makes NEXRAD a Doppler radar. The phase of the returning signal typically changes based upon the motion of the raindrops (or bugs, dust, etc.). This Doppler effect was named after the Austrian physicist, Christian Doppler, who discovered it. You have most likely experienced the "Doppler effect" around trains.
Directory of Providers of business continuity services...
Business Continuity: HP Solutions
HP operating system services: leveraging our long-standing frontline partnership with Microsoft, HP takes quality Microsoft technologies to build an infrastructure that meets your needs.
www.hp.com
Ref Number 27823-2710.33
SunGard Business Continuity
SunGard delivers a full suite of business continuity solutions. Complete, cost-effective solutions.
www.availability.sungard.com
Ref Number 27823-2710.32
Business Continuity and DR Software
XOsoft's business continuity and disaster recovery software helps overcome database or application failures by synchronizing and continuously replicating critical applications and servers.
www.xosoft.com
Ref Number 27823-279.99
Villanova IS Security Management Course
Increase your salary, become a leader in IS security. Villanova Online professional certificates in: IS Security, CISSP, IT Project Management, Business Analysis. Get ahead in just 8 weeks.
www.villanovau.com
Ref Number 27823-278.03
Business Continuity Training
5-day Continuity with advanced BIA course offered in Toronto, Washington, San Francisco, and New York. Become a CBRP (Certified Business Resilience Professional
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www.sentryx.com
Ref Number 27823-278.02
Business Continuity Evolved
The Gemini Resilience Workplace is a market leading solution for your Business Continuity and Disaster Recovery needs. Gemini Systems is headquartered in New York City.
www.gemini-systems.com
Ref Number 27823-277.26
E-Mail Business Continuity Services
Guaranteed zero e-mail downtime. Full e-mail functionality during outages for true business continuity.
www.frontbridge.com
Ref Number 27823-276.98
Disaster Recovery Consulting Services
CSI is an experienced group of business continuity planners.
www.contsol.com
Ref Number 27823-274.51
Business Continuity
The XRoads Networks EdgePRO Traffic Manager offers bandwidth management solutions with multi-WAN load balancing and redundancy. Our edge routers ensure access for your network applications.
www.xroadsnetworks.com
Ref Number 27823-274.50
Business Continuity, Disaster Planning
Agility Recovery provides convenient and affordable disaster recovery solutions customized for your business and designed to restore your business lifelines.
www.agilityrecovery.com
Ref Number 27823-274.00
MIR3 Business Continuity
Business continuity, planning resources, notification alert software. Interactive voice and text worldwide. Secure, reliable and a free demo.
www.mir3.com
Ref Number 27823-273.11
Tape Management for Business Continuity
Satisfy all tape aspects of your business continuity plans by knowing where your backup tapes are, what's on them, where they have to move and when they can be reused with Vertices.
www.vertices.net
Ref Number 27823-273.10
Business Continuity Resources
Disaster recovery and business continuity. Hundreds of books, software tools and research reports. Since 1989. Free CD-ROM with first purchase.
www.disasterrecoverybooks.com
Ref Number 27823-271.03
Business Telecom Continuity
Effective telecom disaster recovery requires phones being answered, being accessible to customers, and communication with and among employees.
www.segwaycommunications.com
Ref Number 27823-271.02
Business Continuity Disaster Recovery
DRS is business continuity planning software that manages business continuity resource information, provides the planning tools and produces/manages business continuity plans. Free trial.
www.drsbytamp.com
Ref Number 27823-271.00
Amerivault - Online Backup for Business
Reliable, automated online backup and recovery solutions for business. Backup local and remote servers from one location. Fast - secure - NT - UNIX - data is instantly offsite. - U.S. Only.
www.amerivault.com
Ref Number 27823-271.00
Business Continuity
Protect Your desktop PCs. Ensure workstation security and control information access with Centralized PC Blade computers.
www.clearcube.com
Ref Number 27823-270.75
Business Continuity Research and Studies
Free IT white paper library focused on recent trends and technologies. Free downloads from leading vendors.
www.findwhitepapers.com
Ref Number 27823-270.45
Maintain Business Continuity in a Crisis
You can't predict when a crime or crisis will occur, but you can be prepared. The Network's Critical Incident Reporting Program helps you respond to urgent situations 24/7.
www.reportline.net
Ref Number 27823-270.40
Emergency Notification Software
For business continuity - automatically reach one or thousands via phone, e-mail, pager, or LED. Intelligent system gets responses and contacts more people until the need is met.
www.amcomsoft.com
Ref Number 27823-270.40
Do You Hate Filing?
Find anything in your office in five seconds or less - guaranteed. Revolutionary new software lets you solve your problems with filing and continuity. Free 30-day trial.
www.thepapertiger.com
Ref Number 27823-270.26
Business Continuity, Emergency Planning
Guidelines, templates, tools and risk management consulting services.
emergencyriskmanagement.com
Ref Number 27823-270.26
IT Business Continuity
Provider of computer network business continuity planning and disaster recovery services. We work with companies regarding system replication, ongoing planning and administration.
www.accuva.net
Ref Number 27823-270.25
Business Continuity at Shopping.com
Find, compare and buy products in categories ranging from Network Management Tools to Software Utilities. Read product reviews and compare prices from thousands of online stores.
www.shopping.com
Ref Number 27823-270.18
Business Continuity
Unitrends provides high-speed, cost-effective and easy-to-use business recovery solutions in the form of an integrated hardware and software appliance: The data protection unit.
sitetracker.morevisibility1.com
Ref Number 27823-270.15
Continuity Business: Compare Prices
You want it, we got it. Find deals and save money at 40,000 stores across the web. Read consumer reviews and find store ratings at BizRate.com.
www.bizrate.com
Ref Number 27823-270.11
Business Continuity
Avoid getting burnt. Get all the facts. Free disaster recovery info here.
www.disasterrecoverysurvival.com
Ref Number 27823-270.10
NeoScale - Enterprise Storage Security
NeoScale Systems provides security solutions for data storage through appliances designed to add scalable, high-performance, strong encryption, access, and authentication services.
www.neoscale.com
Ref Number 27823-270.10
Remote Backup for Business - Free Quotes
BuyerZone is a leading marketplace for businesses. Complete a simple form, get multiple quotes from local and national business continuity vendors. Save time and money today.
www.buyerzone.com
Ref Number 27823-270.10
Efficinet Inc: Business Continuity
Professional IT services, network consulting and security consulting. Efficinet specializes in providing professional service companies with reliable, secure and efficient networks.
www.efficinet.com
Ref Number 27823-270.10
Term Papers on Business Continuity
Established site features downloadable term papers on business continuity.
www.the-paper-store.com
Ref Number 27823-270.10
Business Continuity Consultants
A global engineering and scientific consulting firm providing product and process development, failure analysis, forensic experts, manufacturing and management consulting services.
www.rapid-response-consulting.com
Ref Number 27823-270.10
Business Continuity Planning
Availability is one of the most important attributes of an Online system. By means of business continuity planning and analysis we can direct you to the best way of increasing uptime.
www.sohar.com
Ref Number 27823-270.05
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