Dear All,
I proposed a set of new standard names in November last year. They are
repeated at the end of this message. Since no one discussed any of the
proposed names and it is now more than one month after the initial
submission I ask that these names now be considered accepted.
Because of the suggestions received off this list about the
datetime_iso8601 standard name I will resubmit a modified proposal in
a separate e-mail. In light of the recent discussions on calendars and
string representation of datetime information I don't want that the
discussion about this name slow down adoption of the others.
-Aleksandar
On Tue, Nov 20, 2012 at 9:34 AM, Aleksandar Jelenak - NOAA Affiliate
<aleksandar.jelenak at noaa.gov> wrote:
> [...snip...]
> Proposed standard names are:
>
> 1) sensor_band_identifier
>
> Alphanumeric identifier of a sensor band.
>
> Units: N/A
>
> 2) sensor_band_central_wavelength
>
> The central wavelength of a sensor's band, calculated as the first
> moment of the band's normalized spectral response function.
>
> Units: m
>
> 3) sensor_band_central_wavenumber
>
> The central wavenumber of a sensor's band, calculated as the first
> moment of the band's normalized spectral response function.
>
> Units: m-1
>
> 4) sensor_band_central_frequency
>
> The central frequency of a sensor's band, calculated as the first
> moment of the band's normalized spectral response function.
>
> Units: Hz
>
> 5) time_interval
>
> An interval of time.
>
> Units: s
>
> 7) sensor_zenith_angle
>
> The angle between the line of sight to the sensor and the local
> zenith; a value of zero is directly overhead.
>
> Units: degree
>
> 8) platform_look_angle
>
> "platform" refers to the vehicle from which observations are made e.g.
> airplane, ship, or satellite. Platform look angle is the angle between
> the line of sight from the platform and the direction straight
> vertically down. Zero look angle means looking directly beneath the
> platform.
>
> Units: degree
>
> 9) sensor_look_angle
>
> The angle between the line of sight from the sensor and the direction
> straight vertically down. Zero look angle means looking directly
> beneath the sensor.
>
> Units: degree
>
> 10) platform_azimuth_angle
>
> "platform" refers to the vehicle from which observations are made e.g.
> airplane, ship, or satellite. Platform azimuth angle is the horizontal
> angle between the line of sight from the observation point to the
> platform and a reference direction at the observation point, which is
> often due north. The angle is measured clockwise starting from the
> reference direction.
>
> Units: degree
>
> 11) sensor_azimuth_angle
>
> The horizontal angle between the line of sight from the observation
> point to the sensor and a reference direction at the observation
> point, which is often due north. The angle is measured clockwise
> starting from the reference direction.
>
> Units: degree
>
> 12) relative_platform_azimuth_angle
>
> Difference between two platform_azimuth_angle values.
>
> Units: degree
>
> 13) relative_sensor_azimuth_angle
>
> Difference between two sensor_azimuth_angle values.
>
> Units: degree
>
> 14) toa_outgoing_spectral_radiance
>
> "toa" means top of atmosphere; "outgoing" means emitted toward outer
> space; "spectral" means per unit wavenumber or as a function of
> wavenumber. Radiance is the radiant power per unit area in a
> particular direction per unit of solid angle.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 15) toa_outgoing_spectral_radiance_mean_within_collocation_target
>
> An average of toa_outgoing_spectral_radiance observations from
> sensor's adjacent field of views within a collocation target.
> Collocation target is an area on the Earth's surface at which
> observations from at least two sensors are collected. Its size is
> defined by the sensor with the largest field of view footprint.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 16) toa_outgoing_spectral_radiance_stdev_within_collocation_target
>
> Standard deviation of toa_outgoing_spectral_radiance observations from
> sensor's adjacent field of views within a collocation target.
> Collocation target is an area on the Earth's surface at which
> observations from at least two sensors are collected. Its size is
> defined by the sensor with the largest field of view footprint.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 17) toa_outgoing_spectral_radiance_mean_within_collocation_scene
>
> An average of toa_outgoing_spectral_radiance observations within a
> collocation scene. Collocation scene is a grouping of sensor's
> adjacent field of views (FOVs) centered on a collocation target.
> Collocation target is an area on the Earth's surface at which
> observations from at least two sensors are collected. Its size is
> defined by the sensor with the largest FOV footprint. Collocation
> scene's size is typically about twice the size of its collocation
> target.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 18) toa_outgoing_spectral_radiance_stdev_within_collocation_scene
>
> Standard deviation of toa_outgoing_spectral_radiance observations
> within a collocation scene. Collocation scene is a grouping of
> sensor's adjacent field of views (FOVs) centered on a collocation
> target. Collocation target is an area on the Earth's surface at which
> observations from at least two sensors are collected. Its size is
> defined by the sensor with the largest FOV footprint. Collocation
> scene's size is typically about twice the size of its collocation
> target.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 19) constant_term_of_spectral_radiance_correction_due_to_intercalibration
>
> Constant term (offset) of the formula for correcting measured spectral
> radiance. The correction is derived from intercalibration between the
> monitored and the reference sensor. The resulting corrected spectral
> radiance of the monitored sensor becomes comparable with measured
> spectral radiance of the reference sensor. "Spectral" means per unit
> wavenumber or as a function of wavenumber. Radiance is the radiant
> power per unit area in a particular direction per unit of solid angle.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 20) linear_term_of_spectral_radiance_correction_due_to_intercalibration
>
> Linear term (slope) of the formula for correcting measured spectral
> radiance. The correction is derived from intercalibration between the
> monitored and the reference sensor. The resulting corrected spectral
> radiance of the monitored sensor becomes comparable to measured
> spectral radiance of the reference sensor. "Spectral" means per unit
> wavenumber or as a function of wavenumber. Radiance is the radiant
> power per unit area in a particular direction per unit of solid angle.
>
> Units: 1
>
> 21) quadratic_term_of_spectral_radiance_correction_due_to_intercalibration
>
> Quadratic term of the formula for correcting measured spectral
> radiance. The correction is derived from intercalibration between the
> monitored and the reference sensor. The resulting corrected spectral
> radiance of the monitored sensor becomes comparable to measured
> spectral radiance of the reference sensor. "Spectral" means per unit
> wavenumber or as a function of wavenumber. Radiance is the radiant
> power per unit area in a particular direction per unit of solid angle.
>
> Units: mW-1 m2 sr cm-1
>
> 22) covariance_between_constant_and_linear_terms_of_spectral_radiance_correction
>
> Covariance between
> constant_term_of_spectral_radiance_correction_due_to_intercalibration
> and linear_term_of_spectral_radiance_correction_due_to_intercalibration
> values.
>
> Units: mW m-2 sr-1 (cm-1)-1
>
> 23) toa_brightness_temperature_of_standard_scene
>
> "toa" means top of atmosphere. Brightness temperature of a body is the
> temperature of a black body which radiates the same power per unit
> solid angle per unit area at a given wavenumber. Standard scene is a
> target area with typical Earth surface and atmospheric conditions that
> is accepted as a reference. The top-of-atmosphere radiance of the
> standard scene is calculated using a radiative transfer model for a
> given viewing geometry. The resultant top-of-atmosphere spectral
> radiance is then integrated with a sensor's spectral response function
> and converted to equivalent brightness temperature.
>
> Units: K
>
> 24) toa_brightness_temperature_bias_at_standard_scene_wrt_intercalibration
>
> The difference between top-of-atmosphere (TOA) brightness temperature
> of the reference sensor and TOA brightness temperature of the
> monitored sensor. This TOA brightness temperature difference is a
> measure of the calibration difference between the monitored and
> reference sensors. Standard scene is a target area with typical Earth
> surface and atmospheric conditions that is accepted as a reference.
> Brightness temperature of a body is the temperature of a black body
> which radiates the same power per unit solid angle per unit area at a
> given wavenumber. TOA brightness temperature of the standard scene is
> calculated using a radiative transfer simulation for a given viewing
> geometry. The resultant top-of-atmosphere spectral radiance is then
> integrated with each sensor's spectral response function and converted
> to equivalent brightness temperature.
>
> Units: K
>
>
>
> -Aleksandar
Received on Fri Jan 11 2013 - 09:29:54 GMT
