Radar

25 %
75 %
Information about Radar

Published on October 5, 2007

Author: radgeog

Source: slideshare.net

Description

Meteorology and radar images

Weather Radar John Harris - Head of Geography - Radley College [email_address] http://geography.radley.org.uk

What is radar? Electro-magnetic waves are sent out. Signals ( echoes ) bounce back from targets eg rain droplets. This can show the distance, size and velocity of the targets. Weather radar detects echoes from water droplets in rain clouds. Computer software processes and maps the data. Radar = radio detection and ranging

Electro-magnetic waves are sent out.

Signals ( echoes ) bounce back from targets eg rain droplets.

This can show the distance, size and velocity of the targets.

Weather radar detects echoes from water droplets in rain clouds.

Computer software processes and maps the data.

National radar networks Many countries have set up weather radar networks to help weather forecasting and rainfall prediction.

Radar maps Can you identify the country?

What do radar maps show? Radar Reflectivity (dBZ) Type of precipitation Rainfall rate 0-30 dBZ Light rain up to 3 mm/hr 30-45 dBZ Moderate rain 3-25 mm/hr 45-55 dBZ Convective storm 25-100 mm/hr +55 dBZ Severe storm +100 mm/hr Larger droplets have higher radar reflectivity values ( dBZ ). These dBZ values can be mapped with different colours. Data can also be mapped as rainfall rates - mm per hour. Several images can be looped to make radar movies.

Hawaii radar Where is the rain mainly falling? How much rain is falling (mm per hour)?

Japan radar - forecast A band of rain can be seen to the west of Japan. Question: Assuming a westerly wind what is your forecast for Japan over the next few hours? Answer: wet and windy!

Add a comment

Related presentations

Related pages

Radar – Wikipedia

Radar [ʁaˈdaːʶ] ist die Abkürzung für radio detection and ranging (frei übersetzt „Funkortung und -abstandsmessung“), zwischenzeitlich radio ...
Read more

NiederschlagsRadar.de - Aktuelles NiederschlagsRadar ...

radar live! Niederschlagsprognose Ort einstellen Geoposition löschen. mm pro stunde NiederschlagsRadar Emden: NiederschlagsRadar Hamburg:
Read more

Flightradar24.com - Live flight tracker!

Flightradar24 is the best live flight tracker that shows air traffic in real time. Best coverage and cool features!
Read more

RegenRadar Deutschland - WetterOnline

RegenRadar Deutschland - werde ich nass oder nicht? Regen live beobachten mit dem RegenRadar von wetteronline.de.
Read more

Radar Online- Hottest Celebrity Gossip & Entertainment News

Check back often for the most up-to-the-second celebrity gossip, news and Hollywood happenings anywhere. Follow stories as they happen & see what's ...
Read more

Radar - Wikipedia

Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects. It can be used to detect aircraft, ships, ...
Read more

Niederschlagsradar für Deutschland | wetter.com

Satelliten & Radar beta; HD Live Webcams; News & Videos. Zurück zur Übersicht; News & Videos; Wetter-Ticker; Nachrichten; Unwetter; Wetterwissen; Klima ...
Read more

Wetter - Radar

Das Wetterradar für Deutschland, Europa zeigt aktuell alle 15 Minuten neu Regen, Schnee und Hagel
Read more

Radar Deutschland - Wetterradar Donnerwetter.de

Radar, Deutschland, Wetterradar, Radarbild. Navigation. Start; Aktuell. Wetterradar; Unwetter; Deutschland; Blitze; Meldungen; Nowcasting; Regenscanner ...
Read more

WetterRadar – Regen, Blitze und Wolken live – WetterOnline

WetterRadar - der zoombare Wetterüberblick für Deutschland und Europa (mit RegenRadar, Gewitterradar und Wolken) von wetteronline.de
Read more