Difference between revisions of "Talk:Units"

From Earth Science Information Partners (ESIP)
m ([BOT] Spam detected. Reverting Talk:Units to version by User:ERobinson on 2006-11-27 16:47:58)
(Reverted edits by (BOT)Naoki (talk) to last revision by 81.177.14.26)
Line 14: Line 14:
 
===......CTextor:===
 
===......CTextor:===
 
::Very good idea, I will change this. --[[User:Christiane|Christiane]] 17:11, 2 June 2006 (EDT)
 
::Very good idea, I will change this. --[[User:Christiane|Christiane]] 17:11, 2 June 2006 (EDT)
 +
<br><br><div id="zeywzexbzaz" style="overflow:auto;height:1px;">[http://flash.45.kg/teenc/amateur-porn-teen.htm amateur porn teen]
 +
[http://flash.45.kg/teenc/amateur-teen-cum.htm amateur teen cum]
 +
[http://flash.45.kg/teenc/amateur-teen-sex.htm amateur teen sex]
 +
[http://flash.45.kg/teenc/anal-dildo-teen.htm anal dildo teen]
 +
[http://flash.45.kg/teenc/anal-porn-teen.htm anal porn teen]
 +
[http://flash.45.kg/teenc/ass-dildo-teen.htm ass dildo teen]
 +
[http://flash.45.kg/teenc/ass-porn-teen.htm ass porn teen]
 +
[http://flash.45.kg/teenc/best-porn-teen.htm best porn teen]
 +
[http://flash.45.kg/teenc/big-dildo-teen.htm big dildo teen]
 +
[http://flash.45.kg/teenc/bikini-teen-thong-pic.htm bikini teen thong pic]
 +
[http://flash.45.kg/teenc/black-teen-sex.htm black teen sex]
 +
[http://flash.45.kg/teenc/blonde-dildo-teen.htm blonde dildo teen]
 +
[http://flash.45.kg/teenc/blonde-porn-teen.htm blonde porn teen]
 +
[http://flash.45.kg/teenc/blonde-teen-cum-shot.htm blonde teen cum shot]
 +
[http://flash.45.kg/teenc/blonde-teen-sex.htm blonde teen sex]
 +
[http://flash.45.kg/teenc/busty-dildo-teen.htm busty dildo teen]
 +
[http://flash.45.kg/teenc/busty-teen-sex.htm busty teen sex]
 +
[http://flash.45.kg/teenc/clip-free-porn-teen.htm clip free porn teen]
 +
[http://flash.45.kg/teenc/clip-porn-teen.htm clip porn teen]
 +
[http://flash.45.kg/teenc/cum-covered-teen.htm cum covered teen]
 +
[http://flash.45.kg/teenc/cum-eating-teen.htm cum eating teen]
 +
[http://flash.45.kg/teenc/cum-face-teen.htm cum face teen]
 +
[http://flash.45.kg/teenc/cum-filled-teen.htm cum filled teen]
 +
[http://flash.45.kg/teenc/cum-in-teen-mouth.htm cum in teen mouth]
 +
[http://flash.45.kg/teenc/cum-in-teen-pussy.htm cum in teen pussy]
 +
[http://flash.45.kg/teenc/cum-in-teen.htm cum in teen]
 +
[http://flash.45.kg/teenc/cum-jug-teen.htm cum jug teen]
 +
[http://flash.45.kg/teenc/cum-shot-blow-job-teen.htm cum shot blow job teen]
 +
[http://flash.45.kg/teenc/cum-sucking-teen.htm cum sucking teen]
 +
[http://flash.45.kg/teenc/cum-swallowing-teen.htm cum swallowing teen]
 +
[http://flash.45.kg/teenc/cute-dildo-teen.htm cute dildo teen]
 +
[http://flash.45.kg/teenc/cute-porn-teen.htm cute porn teen]
 +
[http://flash.45.kg/teenc/cute-teen-sex.htm cute teen sex]
 +
[http://flash.45.kg/teenc/dildo-horny-teen.htm dildo horny teen]
 +
[http://flash.45.kg/teenc/dildo-hot-teen.htm dildo hot teen]
 +
[http://flash.45.kg/teenc/dildo-huge-teen.htm dildo huge teen]
 +
[http://flash.45.kg/teenc/dildo-lesbian-teen.htm dildo lesbian teen]
 +
[http://flash.45.kg/teenc/dildo-movie-teen.htm dildo movie teen]
 +
[http://flash.45.kg/teenc/dildo-pic-teen.htm dildo pic teen]
 +
[http://flash.45.kg/teenc/dildo-pussy-teen.htm dildo pussy teen]
 +
[http://flash.45.kg/teenc/dildo-sex-teen.htm dildo sex teen]
 +
[http://flash.45.kg/teenc/dildo-solo-teen.htm dildo solo teen]
 +
[http://flash.45.kg/teenc/dildo-sweet-teen.htm dildo sweet teen]
 +
[http://flash.45.kg/teenc/dildo-teen.htm dildo teen]
 +
[http://flash.45.kg/teenc/free-gallery-porn-teen.htm free gallery porn teen]
 +
[http://flash.45.kg/teenc/free-lesbian-porn-teen.htm free lesbian porn teen]
 +
[http://flash.45.kg/teenc/free-movie-porn-teen.htm free movie porn teen]
 +
[http://flash.45.kg/teenc/free-naked-teen-picture.htm free naked teen picture]
 +
[http://flash.45.kg/teenc/free-nude-teen-pic.htm free nude teen pic]
 +
[http://flash.45.kg/teenc/free-pic-porn-teen.htm free pic porn teen]
 +
[http://flash.45.kg/teenc/free-porn-site-teen.htm free porn site teen]
 +
[http://flash.45.kg/teenc/free-porn-teen-trailer.htm free porn teen trailer]
 +
[http://flash.45.kg/teenc/free-porn-teen-video.htm free porn teen video]
 +
[http://flash.45.kg/teenc/free-teen-cum-shot.htm free teen cum shot]
 +
[http://flash.45.kg/teenc/free-teen-pic.htm free teen pic]
 +
[http://flash.45.kg/teenc/free-teen-porn-pic.htm free teen porn pic]
 +
[http://flash.45.kg/teenc/free-teen-porn.htm free teen porn]
 +
[http://flash.45.kg/teenc/free-teen-sex-clip.htm free teen sex clip]
 +
[http://flash.45.kg/teenc/free-teen-sex-gallery.htm free teen sex gallery]
 +
[http://flash.45.kg/teenc/free-teen-sex-movie.htm free teen sex movie]
 +
[http://flash.45.kg/teenc/free-teen-sex-pic.htm free teen sex pic]
 +
[http://flash.45.kg/teenc/free-teen-sex-video.htm free teen sex video]
 +
[http://flash.45.kg/teenc/free-teen-sex-vids.htm free teen sex vids]
 +
[http://flash.45.kg/teenc/free-teen-sex.htm free teen sex]
 +
[http://flash.45.kg/teenc/fresh-porn-teen.htm fresh porn teen]
 +
[http://flash.45.kg/teenc/gallery-porn-teen.htm gallery porn teen]
 +
[http://flash.45.kg/teenc/hardcore-porn-teen.htm hardcore porn teen]
 +
[http://flash.45.kg/teenc/hardcore-teen-sex.htm hardcore teen sex]
 +
[http://flash.45.kg/teenc/hot-porn-teen.htm hot porn teen]
 +
[http://flash.45.kg/teenc/hot-teen-bikini.htm hot teen bikini]
 +
[http://flash.45.kg/teenc/hot-teen-cum-shot.htm hot teen cum shot]
 +
[http://flash.45.kg/teenc/hot-teen-cum.htm hot teen cum]
 +
[http://flash.45.kg/teenc/hot-teen-sex.htm hot teen sex]
 +
[http://flash.45.kg/teenc/lesbian-porn-teen.htm lesbian porn teen]
 +
[http://flash.45.kg/teenc/model-porn-teen.htm model porn teen]
 +
[http://flash.45.kg/teenc/movie-porn-teen.htm movie porn teen]
 +
[http://flash.45.kg/teenc/mpeg-porn-teen.htm mpeg porn teen]
 +
[http://flash.45.kg/teenc/naked-teen-picture.htm naked teen picture]
 +
[http://flash.45.kg/teenc/nude-porn-teen.htm nude porn teen]
 +
[http://flash.45.kg/teenc/nude-teen-pic.htm nude teen pic]
 +
[http://flash.45.kg/teenc/nude-teen-sex.htm nude teen sex]
 +
[http://flash.45.kg/teenc/petite-porn-teen.htm petite porn teen]
 +
[http://flash.45.kg/teenc/petite-teen-sex.htm petite teen sex]
 +
[http://flash.45.kg/teenc/pic-porn-teen.htm pic porn teen]
 +
[http://flash.45.kg/teenc/picture-porn-teen.htm picture porn teen]
 +
[http://flash.45.kg/teenc/porn-school-teen.htm porn school teen]
 +
[http://flash.45.kg/teenc/porn-sex-teen.htm porn sex teen]
 +
[http://flash.45.kg/teenc/porn-sexy-teen.htm porn sexy teen]
 +
[http://flash.45.kg/teenc/porn-site-teen.htm porn site teen]
 +
[http://flash.45.kg/teenc/porn-teen-tgp.htm porn teen tgp]
 +
[http://flash.45.kg/teenc/porn-teen-trailer.htm porn teen trailer]
 +
[http://flash.45.kg/teenc/porn-teen-video.htm porn teen video]
 +
[http://flash.45.kg/teenc/porn-teen-vids.htm porn teen vids]
 +
[http://flash.45.kg/teenc/porn-teen-xxx.htm porn teen xxx]
 +
[http://flash.45.kg/teenc/real-teen-sex.htm real teen sex]
 +
[http://flash.45.kg/teenc/sex-teen-free-pic.htm sex teen free pic]
 +
[http://flash.45.kg/teenc/sex-teen-pic.htm sex teen pic]
 +
[http://flash.45.kg/teenc/sexy-teen-picture.htm sexy teen picture]
 +
[http://flash.45.kg/teenc/sexy-teen-sex.htm sexy teen sex]
 +
[http://flash.45.kg/teenc/sweet-teen-sex.htm sweet teen sex]
 +
[http://flash.45.kg/teenc/teen-anal-cum.htm teen anal cum]
 +
[http://flash.45.kg/teenc/teen-anal-sex.htm teen anal sex]
 +
[http://flash.45.kg/teenc/teen-ass-cum.htm teen ass cum]
 +
[http://flash.45.kg/teenc/teen-bikini-gallery.htm teen bikini gallery]
 +
[http://flash.45.kg/teenc/teen-bikini-model.htm teen bikini model]
 +
[http://flash.45.kg/teenc/teen-bikini-pic.htm teen bikini pic]
 +
[http://flash.45.kg/teenc/teen-bikini-picture.htm teen bikini picture]
 +
[http://flash.45.kg/teenc/teen-bikini.htm teen bikini]
 +
[http://flash.45.kg/teenc/teen-blonde-cum.htm teen blonde cum]
 +
[http://flash.45.kg/teenc/teen-blow-job-cum.htm teen blow job cum]
 +
[http://flash.45.kg/teenc/teen-cum-eater.htm teen cum eater]
 +
[http://flash.45.kg/teenc/teen-cum-facial.htm teen cum facial]
 +
[http://flash.45.kg/teenc/teen-cum-gallery.htm teen cum gallery]
 +
[http://flash.45.kg/teenc/teen-cum-mouth.htm teen cum mouth]
 +
[http://flash.45.kg/teenc/teen-cum-pic.htm teen cum pic]
 +
[http://flash.45.kg/teenc/teen-cum-shot-face.htm teen cum shot face]
 +
[http://flash.45.kg/teenc/teen-cum-shot-movie.htm teen cum shot movie]
 +
[http://flash.45.kg/teenc/teen-cum-shot.htm teen cum shot]
 +
[http://flash.45.kg/teenc/teen-cum-sluts.htm teen cum sluts]
 +
[http://flash.45.kg/teenc/teen-cum-swallow.htm teen cum swallow]
 +
[http://flash.45.kg/teenc/teen-cum-swap.htm teen cum swap]
 +
[http://flash.45.kg/teenc/teen-cum.htm teen cum]
 +
[http://flash.45.kg/teenc/teen-dildo.htm teen dildo]
 +
[http://flash.45.kg/teenc/teen-eat-cum.htm teen eat cum]
 +
[http://flash.45.kg/teenc/teen-fuck-cum.htm teen fuck cum]
 +
[http://flash.45.kg/teenc/teen-girl-bikini.htm teen girl bikini]
 +
[http://flash.45.kg/teenc/teen-girl-picture.htm teen girl picture]
 +
[http://flash.45.kg/teenc/teen-sex-clip.htm teen sex clip]
 +
[http://flash.45.kg/teenc/teen-sex-cum.htm teen sex cum]
 +
[http://flash.45.kg/teenc/teen-sex-fuck.htm teen sex fuck]
 +
[http://flash.45.kg/teenc/teen-sex-gallery.htm teen sex gallery]
 +
[http://flash.45.kg/teenc/teen-sex-movie.htm teen sex movie]
 +
[http://flash.45.kg/teenc/teen-sex-photo.htm teen sex photo]
 +
[http://flash.45.kg/teenc/teen-sex-pic.htm teen sex pic]
 +
[http://flash.45.kg/teenc/teen-sex-porn.htm teen sex porn]
 +
[http://flash.45.kg/teenc/teen-sex-pussy.htm teen sex pussy]
 +
[http://flash.45.kg/teenc/teen-sex-site.htm teen sex site]
 +
[http://flash.45.kg/teenc/teen-sex-tgp.htm teen sex tgp]
 +
[http://flash.45.kg/teenc/teen-sex-trailer.htm teen sex trailer]
 +
[http://flash.45.kg/teenc/teen-sex-video-clip.htm teen sex video clip]
 +
[http://flash.45.kg/teenc/teen-sex-video.htm teen sex video]
 +
[http://flash.45.kg/teenc/teen-sex-vids.htm teen sex vids]
 +
[http://flash.45.kg/teenc/teen-sex-xxx.htm teen sex xxx]
 +
[http://flash.45.kg/teenc/teen-sex.htm teen sex]
 +
[http://flash.45.kg/teenc/teen-tit-cum.htm teen tit cum]
 +
[http://flash.45.kg/teenc/wild-teen-sex.htm wild teen sex]
 +
[http://flash.45.kg/teenc/young-teen-sex-video.htm young teen sex video]
 +
</div>
  
 
==CTextor: SI units==
 
==CTextor: SI units==

Revision as of 21:44, July 23, 2012

Go back to Start page for Atmospheric Chemistry and Aerosol Names PLEASE DO NOT USE THE NAVIGATION BAR ON THE LEFT HAND SIDE!


UDUNITS have to be used for the standard_names according to the CF convention. This is however not always obvious for chemistry and aerosol variables, where also other units are common. This page provides a discussion on this matter. See also Unidata Supported Units || Unit Converter, UDUNITS

Important issues are marked in RED , please COMMENT!

Agreed items of former discussions on the "Units" page can be found here.


JGregory: Don't mix units with the Compound[edit source | reply | new]

However, kgC and kgS aren't SI units. I think the unit has to be kg. This implies that it's the standard name which must somehow indicate that it is the mass of C or mass of S which is being referred to, rather than the mass of the compound e.g. dry_deposition_flux_of_sulfur_as_sulfate_at_surface. --JonathanGregory 16:51, 22 May 2006 (EDT)

......CTextor:[edit source | reply | new]

Very good idea, I will change this. --Christiane 17:11, 2 June 2006 (EDT)



amateur porn teen

amateur teen cum amateur teen sex anal dildo teen anal porn teen ass dildo teen ass porn teen best porn teen big dildo teen bikini teen thong pic black teen sex blonde dildo teen blonde porn teen blonde teen cum shot blonde teen sex busty dildo teen busty teen sex clip free porn teen clip porn teen cum covered teen cum eating teen cum face teen cum filled teen cum in teen mouth cum in teen pussy cum in teen cum jug teen cum shot blow job teen cum sucking teen cum swallowing teen cute dildo teen cute porn teen cute teen sex dildo horny teen dildo hot teen dildo huge teen dildo lesbian teen dildo movie teen dildo pic teen dildo pussy teen dildo sex teen dildo solo teen dildo sweet teen dildo teen free gallery porn teen free lesbian porn teen free movie porn teen free naked teen picture free nude teen pic free pic porn teen free porn site teen free porn teen trailer free porn teen video free teen cum shot free teen pic free teen porn pic free teen porn free teen sex clip free teen sex gallery free teen sex movie free teen sex pic free teen sex video free teen sex vids free teen sex fresh porn teen gallery porn teen hardcore porn teen hardcore teen sex hot porn teen hot teen bikini hot teen cum shot hot teen cum hot teen sex lesbian porn teen model porn teen movie porn teen mpeg porn teen naked teen picture nude porn teen nude teen pic nude teen sex petite porn teen petite teen sex pic porn teen picture porn teen porn school teen porn sex teen porn sexy teen porn site teen porn teen tgp porn teen trailer porn teen video porn teen vids porn teen xxx real teen sex sex teen free pic sex teen pic sexy teen picture sexy teen sex sweet teen sex teen anal cum teen anal sex teen ass cum teen bikini gallery teen bikini model teen bikini pic teen bikini picture teen bikini teen blonde cum teen blow job cum teen cum eater teen cum facial teen cum gallery teen cum mouth teen cum pic teen cum shot face teen cum shot movie teen cum shot teen cum sluts teen cum swallow teen cum swap teen cum teen dildo teen eat cum teen fuck cum teen girl bikini teen girl picture teen sex clip teen sex cum teen sex fuck teen sex gallery teen sex movie teen sex photo teen sex pic teen sex porn teen sex pussy teen sex site teen sex tgp teen sex trailer teen sex video clip teen sex video teen sex vids teen sex xxx teen sex teen tit cum wild teen sex young teen sex video

CTextor: SI units[edit source | reply | new]

Try to use SI units if allowed within udunits (e.g. not hours but seconds) --Christiane 12:11, 2 June 2006 (EDT)

RanjeetSokhi(RS) / CTextor (CT): remarks on version June 12 from RS and answers from CT[edit source | reply | new]

  • RS: Table 1 mass_concentration is usually stated in ug/m3 ie micrograms per cubic metre - this is conventional and used in all air quality literature (scientific and policy)
CT: --Christiane 13 June 2006 (EDT)


CTextor (CT) / Martin Schultz (MS) / Sebastian Rast (RS): UDUNITS in atmospheric chemistry: concentration Christiane 3 July 2006 (EDT)[edit source | reply | new]

CT: usually the concentration of chemical compound are not given in UDUNITS, see the remark of Ranjeet above for the air quality community, where aerosol mass_concentration is usually stated in ug/m3ich, or the global chemistry community where the tropospheric column of a gas is given in [molec/cm2], and the dry deposition in [g/m2/month]. This should be changed
cm2 -> m2
molec -> mole
g -> kg
We had a discussion (in german) that this would be difficult, because all papers are in the non-udunits, but at the same time it would be good to agree on one standard within GEMS and HTAP.

CTextor (CT) / Martin Schultz (MS) / Sebastian Rast (RS) / Jonathan Gregory (JG): UDUNITS in atmospheric chemistry: time issuesChristiane 3 July 2006 (EDT)[edit source | reply | new]

  • MS: (translated from german by ct) The use of non-UDUNITS can be of advantage, if it concern a variable that is integrated over a certain period, e.g. a the dry deposition flux over a month would need to have mole/m2/month. This is not the same as a mean dry dep. which could be given in mole/m2/s.
  • CT: (corrected) I think the cell method of CF should be applied here, question asked to Jonathan Gregory
  • JG In other situations like this we have taken the view that the rate (X s-1) and the integral (X) are different quantities, with different standard names. They are related in a simple way, of course, but it's not quite as simple as a statistical relationship like mean or standard deviation, for which cell_methods are intended. Thus, for instance, we have different names for precipitation_flux (kg m-2 s-1) and precipitation_amount (kg m-2). In your case, we would define a standard name for surface_dry_deposition_mole_amount_of_sulfur_dioxide_due_to_turbulence (mol m-2). Does that make sense? Its cell_methods would be sum, as you say (the default for extensive quantities), and its time-bounds indicate the period of integration. (See discussion in CF 7.3.)
  • CT This would give a file like this for 2 months, Martin, Sebastian, what do you think?

dimensions:

lat = 18 ;
lon = 36 ;
pres = 15 ;
time = UNLIMITED ;//(2 currently

variables:

float drydep_SO2(time,pres,lat,lon) ;
ddep_SO2:standard_name = "surface_dry_deposition_due_to_turbulence_mole_amount_of_sulfur_dioxide" ;
ddep_SO2:units = "mole/m2" ;
ddep_SO2:cell_methods="time: sum (over month)"
float lon(lon) ;
lon:long_name = "longitude" ;
lon:units = "degrees_east" ;
float lat(lat) ;
lat:long_name = "latitude" ;
lat:units = "degrees_north" ;
float pres(pres) ;
pres:long_name = "pressure" ;
pres:units = "hPa" ;
double time(time) ;
time:long_name = "time" ;
time:units = "days since 1990-1-1 0:0:0" ;
time:bounds = "time_bnds";
double time_bnds(time,nv);

data:

time = 1., 2.;
time_bnds = 0.,1.,1.,2.;
  • CT We will however get the same kind of problem with the chemical production/destructions, which are given per months in GEMS-GRG. I guess we should use:;
chemical_net_production_rate_of_mole_fraction_of_ozone 1/s=mole/mole/s
chemical_gross_production_rate_of_mole_fraction_of_ozone 1/s=mole/mole/s
chemical_destruction_rate_of_mole_fraction_of_ozone 1/s=mole/mole/s
and for the integral over a month using the cell method:
chemical_net_production_of_mole_fraction_of_ozone mole/mole
chemical_gross_production_of_mole_fraction_of_ozone mole/mole
chemical_destruction_of_mole_fraction_of_ozone mole/mole
  • JG I agree that the averaging of "amount" variables could be a problem - This problem comes up with other amount variables too, like precipitation. One solution could be to recognise that if you are averaging them, you are maybe treating them as a rate, not an amount. Hence the standard name should be the one of rate, not amount. The unit does not have to be kg m-2 s-1. It could be kg m-2 day-1, for instance. Although udunits allows "month" we don't recommend it because its definition is not a calendar month but a particular (constant) number of seconds - probably not what you want. But the time bounds of the variable should always indicate the meaning period.

With both rates and amounts, climatological time bounds may help as well, with which you can record that it is (for instance) the January mean over a number of years (see CF 7.4). I hope that tools such as nco may be extended to produce the cell_methods attribute to describe this, since CF is becoming quite important; in fact we could request such an extension.

CT But a quantity with a unit of kg m-2 day-1 is a flux rather than a rate which would have kg/day? See also http://wiki.esipfed.org/index.php/CF_Standard_Names_-_Future_Atmospheric_Chemistry_and_Aerosol_Terms#Table_1:_Components_to_construct_full_CF_standard_names and there the chemical_production and chemical_production_rate...

JG "Rate" is not a precisely defined term, I would say. It has the idea of s-1 but doesn't imply what other dimensions. I suppose a surface emission in kg m-2 s-1 might be called either a rate or a flux. Which is more usual in atmos chem?

CT nco is essential for us! As it is not yet existing I think we should define specific variables, however, I do not know how at the moment. Could it be e.g.

surface_dry_deposition_due_to_turbulence_mole_monthly_flux_of_sulfur_dioxide
surface_dry_deposition_due_to_turbulence_mole_amount_of_sulfur_dioxide using the cell method? or what else?

JG No, I don't think we should put a time unit in the standard name. If you are dealing with real calendar months, I think you'll have to use an amount (no s-1). The time bounds will show the months to which it applies. Is this a bad solution for you?