Identification

Title

GATE Radar Reflectivity Data from the Canadian Ship Quadra

Alternative title(s)

d845002

Abstract

The C-band radar aboard the Canadian ship C.C.G.S. Quadra collected reflectivity data at 1 degree by 1 km resolution at various antenna tilt angles. A single 360-degree scan at a fixed tilt angle took approximately 20 seconds to complete. A Digital Video Integrator and Processor (DVIP) converted the analog reflectivities to 8-bit digital values. The center of the first gate was 10.5 km from the radar, with equivalent reflectivities recorded for 200 gates in the radial direction. NCAR received the binary-format Quadra radar data on half-inch magnetic tapes from the Radar Weather Observatory at McGill University in April 1977. The raw reflectivity data were converted to netCDF format in 2024, and additionally, netCDF files containing full scans (sweeps) at each tilt angle are planned for later 2024, with equivalent reflectivity values converted to dBZ.

Resource type

dataset

Resource locator

https://gdex.ucar.edu/datasets/d845002/

protocol: https

applicationProfile: browser

name: Dataset Description

description: Related Link

function: information

https://gdex.ucar.edu/datasets/d845002/dataaccess/

protocol: https

applicationProfile: browser

name: Data Access

description: Related Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

MOVING SHIPS

Ships

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Keyword set

keyword value

C-BAND RADAR > C-Band Imaging Radar

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Keyword set

keyword value

GATE > GARP Atlantic Tropical Experiment

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Keyword set

keyword value

EARTH SCIENCE > SPECTRAL/ENGINEERING > RADAR > RADAR REFLECTIVITY

originating controlled vocabulary

title

reference date

date type

revision

effective date

2025-09-19

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

1974-06-28

End position

1974-09-19

Dataset reference date

date type

publication

effective date

1980-11-04

Frequency of update

notPlanned

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

NSF NCAR - Geoscience Data Exchange

full postal address

National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

telephone number

(303)-497-1825

facsimile number

303-497-1291

email address

dattore@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

NSF NCAR Geoscience Data Exchange

full postal address

NSF National Center for Atmospheric Research

CISL/DECS

P.O. Box 3000

Boulder

80307

U.S.A.

facsimile number

303-497-1291

email address

datahelp@ucar.edu

web address

https://gdex.ucar.edu/

name: NSF NCAR Geoscience Data Exchange

description: The NSF NCAR Geoscience Data Exchange - Integrated Research Data Commons (GDEX) contains an extensive collection of meteorological, atmospheric composition, and oceanographic observations and model outputs to support Earth System Science research. GDEX supports "data proximate" computational research through its integration with NSF NCAR High Performance Compute services [https://arc.ucar.edu/resources], which are made accessible to US researchers through a range of allocations opportunities [https://arc.ucar.edu/xras_submit/opportunities].

function: downlaod

responsible party role

pointOfContact

Metadata date

2025-10-03T01:51:07Z

Metadata language