Hi Roy,
I have no idea, but I am happy to use anything that the list can agree upon. Could you perhaps suggest a name bearing that in mind, if you think it is a factor?
Regards,
Miles
Lowry, Roy K. wrote:
> Hi John,
>
> What about pyranometers that measure light intensity in terms of
> energy (by determining black body temperature change) as opposed to
> determining the quantity of photons?
>
> Cheers, Roy.
>
> ________________________________________
> From: John Graybeal [jbgraybeal at mindspring.com]
> Sent: 15 January 2011 02:23
> To: Lowry, Roy K.
> Cc: Miles Jordan; cf-metadata at cgd.ucar.edu; Jonathan Gregory
> Subject: Re: [CF-metadata] Ambient light [Sec=Unclassified]
>
> Is ''A photometric measurement of' a critical part of the definition?
> I can imagine another magical technology that measures the intensity
> of the light in some other way. Well, I *can't* imagine the
> technology, but you know what I mean....
>
> john
>
>
> On Jan 12, 2011, at 00:36, Lowry, Roy K. wrote:
>
>> Thanks Miles,
>>
>> Having read around a bit more I agree that the term luminance
> implies visible (ie wavelengths detected by the human eye) light and
> so 'luminance_in_air' would work, providing a suitable definition is
> included.
>>
>> My straw man proposal for a definition would be 'A photometric
> measurement of the intensity of visible light that passes through or
> is emitted from a given area'. Anyone anything better?
>>
>> Cheers, Roy.
>>
>> -----Original Message-----
>> From: Miles Jordan [mailto:Miles.Jordan at aad.gov.au]
>> Sent: 11 January 2011 23:56
>> To: Lowry, Roy K.
>> Cc: Jonathan Gregory; cf-metadata at cgd.ucar.edu
>> Subject: RE: [CF-metadata] Ambient light [Sec=Unclassified]
>>
>> Thanks for your patience.
>>
>> I've asked what people think, and we have come up with a couple:
> surface_diffuse_luminance_of_shortwave_radiation_in_air or just
> luminance_of_shortwave_radiation_in_air.
>>
>> I don't think you can have luminance without diffuse reflection and
> I also don't think it can be a measurement of any other wavelength so
> it could be as simple as luminance_in_air. But I'll leave it up to the
> list to decide.
>>
>> Regards,
>>
>> Miles
>>
>>
>> Lowry, Roy K. wrote:
>>> Hi Miles,
>>>
>>> I would confirm with somebody who undestands the data before making
>>> any decisions.
>>>
>>> Cheers, Roy.
>>>
>>> ________________________________________
>>> From: Miles Jordan [Miles.Jordan at aad.gov.au]
>>> Sent: 07 January 2011 12:07
>>> To: Lowry, Roy K.
>>> Cc: Jonathan Gregory; cf-metadata at cgd.ucar.edu
>>> Subject: Re: [CF-metadata] Ambient light [Sec=Unclassified]
>>>
>>> Quite possibly. I will have to take your recommendation on that as I
>>> am more on the software development side of things. Or shall I ask the
>>> people from my end that understand the data better?
>>>
>>> Sounds ok to me though.
>>>
>>> Regards,
>>>
>>> Miles Jordan
>>> miles at milesjordan.com
>>> +61 424 879 668
>>>
>>> On 07/01/2011, at 8:35 PM, "Lowry, Roy K." <rkl at bodc.ac.uk> wrote:
>>>
>>>> Hi Miles,
>>>>
>>>> Should there be anything in the Standard Name to specify the
>>> wavelengths of light detected in the measurement e.g.
>>> luminous_intensity_of_shortwave_radiation_in air?
>>>>
>>>> Cheers, Roy.
>>>>
>>>> ________________________________________
>>>> From: cf-metadata-bounces at cgd.ucar.edu
>>>> [cf-metadata-bounces at cgd.ucar.edu] On Behalf Of Miles Jordan
>>>> [Miles.Jordan at aad.gov.au]
>>>> Sent: 07 January 2011 00:41
>>>> To: 'Jonathan Gregory'
>>>> Cc: cf-metadata at cgd.ucar.edu
>>>> Subject: Re: [CF-metadata] Ambient light [Sec=Unclassified]
>>>>
>>>> Jonathan Gregory wrote:
>>>>> Dear Miles
>>>>>
>>>>>> Just wondering if there is a standard name that I should use for
>>>>> ambient light in air measured in candles; I can't see one for
>>>>> ambient light, luminous intensity, or anything else I can think of.
>>>>>
>>>>> I don't think there is at present. Is "candle" the same as the SI
>>>>> unit "candela"? Please propose a standard name if you would like
>>> to.
>>>>
>>>> Yes, candela == candle. May I suggest luminous_intensity_in_air?
>>>>
>>>> Regards,
>>>>
>>>> Miles
>>>>
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