Re: [CF-metadata] ice_sheet / land_ice confusion

2018-10-12 Thread Manning, Evan M (398B)
I've been looking at ice/snow land/sea area types too. I have a microwave algorithm that together with a DEM separates the world into four mutually exclusive categories: - land with ice or snow - land without ice or snow - lake/sea with ice or snow - lake/sea without ice or snow I'm

Re: [CF-metadata] how to use ocean_mixed_layer_thickness_defined_by_*

2018-04-26 Thread Manning, Evan M (398B)
It’s outside of my area so I don’t have an alternative to offer, but it is bad practice to use the names of Greek letters in standard names. Though I’m sure the meaning in context is clear to members of the community, these letters have different meanings in different contexts. -- Evan On

Re: [CF-metadata] Add new integer types to CF?

2017-09-26 Thread Manning, Evan M (398B)
Sounds Good. _Unsigned should also show up in table A.1 -- Evan On 9/26/17, 1:39 PM, "Charlie Zender" wrote: If there is strong opposition to replacing the valid_* method in CF <= 1.7 with the _Unsigned method in CF 1.8 then please speak-up. People seem to prefer

Re: [CF-metadata] Add new integer types to CF?

2017-09-22 Thread Manning, Evan M (398B)
I think the _Unsigned attribute would have been a grand idea before. But if we’re now allowing explicit unsigned types, what purpose does it serve? Do I use the _Unsigned = “true” attribute on every ubyte, ushort, and uint variable? They’re already clearly unsigned according to the type

Re: [CF-metadata] new standard names request

2017-03-29 Thread Manning, Evan M (398B)
Hi all, volume_fraction_of_ozone_in_air as suggested below is perfect for AIRS. Could we add to the proposal analogous names for CO and CH4? volume_fraction_of_carbon_monoxide_in_air (canonical units:1) ' "Volume fraction" is used in the construction volume_fraction_of_X_in_Y, where X

Re: [CF-metadata] Overlapping vertical bounds

2017-03-03 Thread Manning, Evan M (398B)
cgd.ucar.edu> Subject: Re: [CF-metadata] Overlapping vertical bounds What makes you think overlapping bounds are illegal? On 3/2/17 7:20 PM, Manning, Evan M (398B) wrote: I have some quantities which are defined on trapezoids in the vertical direction. For example the top trap

[CF-metadata] Overlapping vertical bounds

2017-03-02 Thread Manning, Evan M (398B)
I have some quantities which are defined on trapezoids in the vertical direction. For example the top trap might be full weight from the top of the atmosphere (TOA) to 50 hPa, then we ramp linearly between the first and second traps between 50 & 75 hPa, then trap 2 is full weight 75-100 hPa,

Re: [CF-metadata] How to define time coordinate in GPS?

2015-04-24 Thread Manning, Evan M (398B)
It's probably overkill but for Suomi NPP CrIS and ATMS we are planning to provide timestamps for each obs in both TAI and UTC. TAI is the true time dimension, but UTC gives users a correct UTC if that's what they want and should minimize the temptation for them to do TAI to UTC conversions

[CF-metadata] Using a standard_name more than once in a file

2015-03-29 Thread Manning, Evan M (398B)
I'm defining a data set, and I have a question about reusing standard_names in a file. For example this a swath, so there a lat/lon/time for each observed spot. There is also a subsatellite lat/lon and mid-scan time. And in some cases I have separate lat/lon by MW band. So, does every lat