Weather Radar - CAPPI

Property Value
identifier urn:wmo:md:ca-eccc-msc:aae10768-0c0c-4670-807e-8e893680887e
type dataset
created 2023-03-21T00:00:00Z
updated
title Weather Radar - CAPPI
description Due to the curvature of the Earth, the height of a radar beam, in relation to the ground, increases as it travels further from the radar. When the radar is pointed down near the ground (a low elevation angle), the beam starts off near the ground but then its height above the ground slowly increases. By the time that same beam is 200 km from the radar, it is at a height of around 4 km above the ground. In order to get a better sense of what is happening at one approximate height above the ground (i.e. 1.5 km), a whole series of radar beams with different elevation angles (low, medium, high) are used to create one radar product. This type of radar product is called a CAPPI (Constant Altitude Plan Position Indicator). Since the CAPPI products do not use Doppler processing to filter out clutter like tall trees, hills and buildings, it can sometimes be contaminated by non meteorological echoes.
wmo:dataPolicy core
keywords
  • Atmospheric conditions
  • Weather and Climate
  • National (CA)
  • Atmosphere
themes concepts: id: Radar
id: Remote sensing
id: Weather
id: Meteorology

scheme: https://canada.multites.net/cst/EAEAD1E6-7DD2-4997-BE7F-40BFB1CBE8A2/CST20230912.rdf
concepts: id: weather

scheme: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
contacts addresses: deliveryPoint: 77 Westmorland Street, suite 260
city: Fredericton
administrativeArea: New Brunswick
postalCode: E3B 6Z4
country: Canada

roles: host
organization: Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada
name: National Inquiry Response Team / Équipe nationale de réponse des demandes du public
position: National Inquiry Response Team
hoursOfService: 0700h - 1500h EST
contactInstructions: email
phones: value: +18199972800

emails: value: ECWeather-Meteo@ec.gc.ca

links: rel: canonical
type: text/html
href: https://www.canada.ca/en/environment-climate-change.html

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