Dear all,
because of our research on AUVs we find it useful to store
information
about derivatives of the sea water velocity with respect to
all of its
spatiotemporal dimensions.
Our suggestions are based on the
standard names
?northward_sea_water_velocity" and
?eastward_sea_water_velocity" as
vector components u and v of the sea
water velocity. We wrote the
description according to the text of the
existing standards
?eastward_derivative_of_northward_sea_ice_velocity"
and
?x_derivative_of_ocean_rigid_lid_pressure" as a template.
We
propose the following
names:
northward_derivative_of_northward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
northward_derivative_of_northward_sea_water_velocity means
(d/dx) of
the seawater velocity component u, as derived by ocean data
models,
keeping all other coordinates (y,z,t)
constant.
eastward_derivative_of_northward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
eastward_derivative_of_northward_sea_water_velocity means
(d/dy) of
the seawater velocity component u, as derived by ocean data
models,
keeping all other coordinates (x,z,t)
constant.
northward_derivative_of_eastward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
northward_derivative_of_eastward_sea_water_velocity means
(d/dx) of
the seawater velocity component v, as derived by ocean data
models,
keeping all other coordinates (y,z,t)
constant.
eastward_derivative_of_eastward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
eastward_derivative_of_eastward_sea_water_velocity means
(d/dy) of the
seawater velocity component v, as derived by ocean data
models,
keeping all other coordinates (x,z,t)
constant.
northward_sea_water_acceleration [m/s?]
"Eastward" indicates
a vector component which is positive when
directed eastward (negative
westward). "Northward" indicates a vector
component which is positive
when directed northward (negative
southward). Sea water acceleration is
defined as a two-dimensional
vector, with no vertical component.
"component_derivative_of_X" means
derivative of X with respect to
distance in the component direction,
which may be northward, southward,
eastward, westward, x or y. The
last two indicate derivatives along the
axes of the grid, in the case
where they are not true longitude and
latitude.
northward_sea_water_acceleration means acceleration in
northward
direction, thus (d/dt) of the seawater velocity component u,
as
derived by ocean data models, keeping all other coordinates
(x,y,z)
constant.
eastward_sea_water_acceleration [m/s?]
"Eastward"
indicates a vector component which is positive when
directed eastward
(negative westward). "Northward" indicates a vector
component which is
positive when directed northward (negative
southward). Sea water
acceleration is defined as a two-dimensional
vector, with no vertical
component. "component_derivative_of_X" means
derivative of X with
respect to distance in the component direction,
which may be northward,
southward, eastward, westward, x or y. The
last two indicate derivatives
along the axes of the grid, in the case
where they are not true
longitude and latitude.
eastward_sea_water_acceleration means
acceleration in eastward
direction, thus (d/dt) of the seawater velocity
component v, as
derived by ocean data models, keeping all other
coordinates
(x,y,z)
constant.
depth_derivative_of_northward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
depth_derivative_of_northward_sea_water_velocity means (d/dz)
of the
seawater velocity component u, as derived by ocean data
models,
keeping all other coordinates (x,y,t)
constant.
depth_derivative_of_eastward_sea_water_velocity
[1/s]
"Eastward" indicates a vector component which is positive
when
directed eastward (negative westward). "Northward" indicates a
vector
component which is positive when directed northward
(negative
southward). Sea water velocity is defined as a two-dimensional
vector,
with no vertical component. "component_derivative_of_X"
means
derivative of X with respect to distance in the component
direction,
which may be northward, southward, eastward, westward, x or
y. The
last two indicate derivatives along the axes of the grid, in the
case
where they are not true longitude and
latitude.
depth_derivative_of_northward_sea_water_velocity means (d/dz)
of the
seawater velocity component v, as derived by ocean data
models,
keeping all other coordinates (x,y,t) constant.
Thank
you.
Best regards
Alexander H?rtel
Dr. Mike Eichhorn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <
http://mailman.cgd.ucar.edu/pipermail/cf-metadata/attachments/20160121/b2db8d3f/attachment.html>
Received on Thu Jan 21 2016 - 03:34:01 GMT
