Identification

Title

Measurement Uncertainties of the NCAR Air Motion Systems

Abstract

An in-depth assessment of the measurement uncertainties of the NCAR air motion systems characterizes this capability and is presented as a useful tool for determining wind data quality as it applies to research program specifications and recognizing subtle air data or Inertial system malfunctions. Table 3 contains the details of the random and systematic error values and the calculated measurement uncertainties at the 95% confidence level. An opportunity to compare the aircraft system air motion system with the ground based NOAA Profiler at Medicine Bow, WY provided a limited data set from which the lessons learned will be helpful with future intercomparison planning. At several levels, the wind direction is well within the expected uncertainty and, in general, the Profiler wind speeds are higher by 2-3 m/s than the aircraft system. The directional differences increase as the speed decreases - which is expected from the directional uncertainties. This is also an attempt to illustrate the value of measurement uncertainty of a popular meteorological measurement required for most NCAR research programs. Admittedly, the subtle intent is to encourage others in the community to routinely define "good" data as test data whose errors do not influence the drawing of valid test conclusions by adopting the measurement uncertainty procedures that are abundantly available.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7sf2vj1

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Keyword set

keyword value

EARTH SCIENCE > SPECTRAL/ENGINEERING > SENSOR CHARACTERISTICS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > FLIGHT LEVEL WINDS

originating controlled vocabulary

title

U.S. National Aeronautics and Space Administration Global Change Master Directory

reference date

date type

revision

effective date

2021-09-17

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

1993-01-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Copyright Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2023-08-18T18:04:00.298132

Metadata language

eng; USA