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EA:  OBSCURANT_TYPE

Status: STD 2005/06/07
Code: 904
Concept definition: The type of obscurant present in an <ATMOSPHERE>.
 
Attribute value type: ENUMERATION
Reference type: IR
Reference: [JMCDM, "AEROSOL-ANALYSIS-FORECAST air-mass characteristic code"]
Supplemental references:  
Enumerants (presented in a natural order)
Status Attribute label Enumerant label ▾ Concept definition Code Ref type Reference Supplemental references
STD
2005/06/07		 OBSCURANT_TYPE ADVECTION_FOG <FOG> caused by advection of moist <AIR> over a cold <PLANETARY_SURFACE>; advection fog. 1 IR [GMET, "advection fog"]  
SUBM
2009/06/04		 OBSCURANT_TYPE BLOWING_SAND Blowing <SAND>.   [FMH1, 8.3.2, f], [JMBL, "weather obscuration":SA]
STD
2005/06/07		 OBSCURANT_TYPE BLOWING_SNOW Snow lifted over the <PLANETARY_SURFACE> by <WIND> to a height of 2 metres or more; blowing snow. 2 IR [GMET, "blowing snow"]  
STD
2005/06/07		 OBSCURANT_TYPE DESERT_HAZE Desert <<<HAZE>>>. 3 IR [JMCDM, "AEROSOL-ANALYSIS-FORECAST air-mass characteristic code":6]  
STD
2005/06/07		 OBSCURANT_TYPE DESERT_SUMMER Desert summer. 4  
STD
2005/06/07		 OBSCURANT_TYPE DESERT_WINTER Desert winter. 5  
SUBM
2009/06/04		 OBSCURANT_TYPE DRIZZLE <DRIZZLE>.   [JMBL, "weather obscuration":DZ]
STD
2005/06/07		 OBSCURANT_TYPE DUST_STORM An unusual, frequently severe, condition characterized by strong <WIND>s and <DUST_SUSPENSION> over an extensive <REGION>; dust storm. 6 IR [GMET, "duststorm"]  
STD
2005/06/07		 OBSCURANT_TYPE HAZE Suspension in the <ATMOSPHERE> of extremely small, dry <PARTICLE>s that are invisible to the naked eye but numerous enough to give the sky an opalescent appearance; haze. 7 PR [WMO182, H0170, "haze"]  
STD
2005/06/07		 OBSCURANT_TYPE MARINE_HAZE <<<HAZE>>> consisting of salt <PARTICLE>s; marine haze. 8 IR [GMET, "maritime air"]  
STD
2005/06/07		 OBSCURANT_TYPE NONE_PRESENT No obscurant conditions are present; none present. 9 IR [GMET]  
STD
2005/06/07		 OBSCURANT_TYPE RADIATION_FOG <FOG> produced over a <TRACT> when radiational cooling reduces the <<AIR_TEMPERATURE>> to or below its dew point; radiation fog. 10 IR [GMET, "radiation fog"]  
SUBM
2009/06/04		 OBSCURANT_TYPE RAIN <RAIN>.   [JMBL, "weather obscuration":RA]
STD
2005/06/07		 OBSCURANT_TYPE RURAL_HAZE Rural <<<HAZE>>>. 11 IR [JMCDM, "AEROSOL-ANALYSIS-FORECAST air-mass characteristic code":0]  
SUBM
2009/06/04		 OBSCURANT_TYPE SMOKE <SMOKE>.   [FMH1, 8.3.2, c], [JMBL, "weather obscuration":FU]
STD
2005/06/07		 OBSCURANT_TYPE SNOW Obscuration caused by the presence of <SNOW_PRECIPITATION> suspended in the <ATMOSPHERE>. 12 IR [GMET]  
STD
2005/06/07		 OBSCURANT_TYPE TEMPERATE_SUMMER_DAY A condition present during the summer and dependent on the <<TEMPERATURE>> during the day; temperate summer day. 13 IR [GMET]  
STD
2005/06/07		 OBSCURANT_TYPE TEMPERATE_SUMMER_NIGHT A condition present during the summer and dependent on the <<TEMPERATURE>> during the night; temperate summer night. 14 IR [GMET]  
STD
2005/06/07		 OBSCURANT_TYPE TEMPERATE_WINTER A condition present during winter season and dependent on the <<TEMPERATURE>> at the time; temperate winter. 15 IR [GMET]  
STD
2005/06/07		 OBSCURANT_TYPE TROPOSPHERIC <<<HAZE>>> in the <TROPOSPHERE>; tropospheric. 16 IR [JMCDM, "AEROSOL-ANALYSIS-FORECAST air-mass characteristic code":3]  
Group membership:

In addition to the status and date information for each entry, a colour coding scheme highlights the database holding to which an entry belongs. The following highlight colours are used:

  • white - the entry is in the standard
  • yellow - the entry has been added to the register
  • pink - the entry has been submitted for inclusion in the register, but it is not approved
  • cyan - a deprecated entry that was originally either in the standard or was added to the register, but has since been deprecated

The following icons are used to identify items that have figures, modifications and/or clarification notes:

  • F n - has Figures and, if more than one figure, n figures
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