Editing Cloud (section)

== Homospheric nomenclatures and cross-classification ==
The table that follows is very broad in scope like the cloud genera template upon which it is partly based. There are some variations in styles of nomenclature between the classification scheme used for the troposphere (strict Latin except for surface-based aerosols) and the method used for the higher levels of the homosphere (common terms, some informally derived from Latin). However, these two schemes, both of which are authorized and used by the World Meteorological Organization, share a cross-classification of physical forms and altitude levels to derive the 10 tropospheric genera,<ref name="identification guide">{{Cite web |year=2017 |editor-last=World Meteorological Organization |title=Cloud Identification Guide, International Cloud Atlas |url=https://cloudatlas.wmo.int/cloud-identification-guide.html |access-date=4 April 2017}}</ref> the fog and mist that forms at surface level, and several additional major types above the troposphere. The cumulus genus includes four species that indicate vertical size which can affect the altitude levels.

{| class="wikitable"
!{{diagonal split header|<br />Level<ref name="Definitions">{{Cite web |year=2017 |editor-last=World Meteorological Organization |title=Definitions, International Cloud Atlas |url=https://cloudatlas.wmo.int/clouds-definitions.html |access-date=30 March 2017}}</ref>|Form<ref name="LANDSAT identification">{{Cite web |last=E.C. Barrett and C.K. Grant |year=1976 |title=The identification of cloud types in LANDSAT MSS images |url=https://ntrs.nasa.gov/citations/19760014556 |publisher=[[NASA]] |access-date=22 August 2012}}</ref>}}
!Stratiform <br> non-convective
!Cirriform <br> mostly non-convective
!Stratocumuliform <br> limited-convective
!Cumuliform <br> free-convective
!Cumulonimbiform <br> strong-convective
|-
!Extreme-level
|[[Noctilucent]] veils ||Noctilucent billows or whirls ||Noctilucent bands || ||
|-
!Very high-level<ref name="Polar-stratospheric">{{Cite web |year=2017 |editor-last=World Meteorological Organization |title=Upper atmospheric clouds, International Cloud Atlas |url=https://cloudatlas.wmo.int/upper-atmospheric-clouds.html |access-date=31 July 2017}}</ref>
|[[Nitric acid]] and [[water]] [[Polar stratospheric cloud|PSC]] veils||[[Cirrus cloud|Cirriform]] [[Nacreous cloud|nacreous PSC]]||[[Lenticular cloud|Lenticular]] [[Nacreous cloud|nacreous PSC]]|| ||
|-
!High-level
|[[Cirrostratus]]||[[Cirrus cloud|Cirrus]]||[[Cirrocumulus]]|| ||
|-
!Mid-level
|[[Altostratus]]|| ||[[Altocumulus]]|| ||
|-
!Towering vertical<ref name="automated Cb and Tcu detection">{{Cite web |last1=de Valk, Paul |last2=van Westhrenen, Rudolf |last3=Carbajal Henken, Cintia |year=2010 |title=Automated CB and TCU detection using radar and satellite data: from research to application |url=http://www.eumetsat.int/Home/Main/AboutEUMETSAT/Publications/ConferenceandWorkshopProceedings/2010/groups/cps/documents/document/pdf_conf_p57_s7_08_devalk_v.pdf |url-status=dead |archive-url=https://web.archive.org/web/20111116001457/http://www.eumetsat.int/Home/Main/AboutEUMETSAT/Publications/ConferenceandWorkshopProceedings/2010/groups/cps/documents/document/pdf_conf_p57_s7_08_devalk_v.pdf |archive-date=16 November 2011 |access-date=15 September 2011}}</ref>
| || || ||[[Cumulus congestus]]||[[Cumulonimbus]]
|-
!Multi-level or moderate vertical
|[[Nimbostratus]]|| || || [[Cumulus mediocris]]||
|-
!Low-level
|[[Stratus cloud|Stratus]]|| ||[[Stratocumulus]]||[[Cumulus humilis]] or [[fractus]]||
|-
!Surface-level
|[[Fog]] or [[mist]]|| || || ||
|}