From c7cf17368421d550e785c8287412ddaeeb7169a0 Mon Sep 17 00:00:00 2001 From: Anna Milan Date: Thu, 7 Nov 2024 17:29:13 +0100 Subject: [PATCH] FT2024-2 WMDS (#541) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * update branch for issue #391 (#538) * update branch for issue #391 * Github Action Commit --------- Co-authored-by: Anna Milan Co-authored-by: joergklausen * 443 1 01 01 addition of definitions for cloud variables (#537) * Update 1-01-01.csv * Update 1-01-01.csv * Github Action Commit --------- Co-authored-by: Franziska Stürzl <72029328+fstuerzl@users.noreply.github.com> Co-authored-by: joergklausen * add core and recommended (#544) * add flash definitions (#545) #391 * Github Action Commit * issue Bug: Superseded unit in WMDR code table #520 (#540) #520 * Update 1-01-01.csv editorial revision to definition of 507 * Github Action Commit * Update 1-01-01.csv editorial * Github Action Commit * Update 9-02.csv editorial * Revise datapolicy (#546) * Update 9-02.csv #475 * Update 9-02.csv * Update 9-02.csv re-order * Update 9-02.csv (#547) remove comparisons to previous data policies * Apply suggestions from code review replace issue numbers with sequential notation numbers --------- Co-authored-by: Jörg Klausen <34302947+joergklausen@users.noreply.github.com> Co-authored-by: joergklausen Co-authored-by: Franziska Stürzl <72029328+fstuerzl@users.noreply.github.com> Co-authored-by: amilan17 --- tables_en/1-01-01.csv | 24 +++++++++++++----------- tables_en/9-02.csv | 2 ++ tables_en/superseded.csv | 2 +- wmdr/ObservedVariableAtmosphere/182.ttl | 2 +- wmdr/ObservedVariableAtmosphere/183.ttl | 2 +- wmdr/ObservedVariableAtmosphere/257.ttl | 4 ++-- wmdr/ObservedVariableAtmosphere/258.ttl | 2 +- wmdr/ObservedVariableAtmosphere/259.ttl | 4 ++-- wmdr/ObservedVariableAtmosphere/260.ttl | 2 +- wmdr/ObservedVariableAtmosphere/432.ttl | 4 ++-- wmdr/ObservedVariableAtmosphere/433.ttl | 4 ++-- wmdr/ObservedVariableAtmosphere/507.ttl | 2 +- wmdr/ObservedVariableAtmosphere/508.ttl | 4 ++-- wmdr/ObservedVariableAtmosphere/533.ttl | 2 +- 14 files changed, 32 insertions(+), 28 deletions(-) diff --git a/tables_en/1-01-01.csv b/tables_en/1-01-01.csv index e9a46304..90fd8e20 100644 --- a/tables_en/1-01-01.csv +++ b/tables_en/1-01-01.csv @@ -6,8 +6,8 @@ notation,path,domains,tags,name,description 179,\Atmosphere\Clouds,,,Cloud amount,"Fraction of the sky covered by clouds of a particular type or combination. It can refer to a genus, species, variety, layer, or a certain combination of clouds. Also, see 'cloud cover'." 180,\Atmosphere\Clouds,,,Cloud cover,"The amount of sky estimated to be covered by a specified cloud type (partial cloud amount), or by all cloud types (total cloud amount). In either case, the estimate is made to the nearest okta (eighth) and is reported on a scale which is essentially one of the nearest eighth, except that figures 0 and 8 on the scale signify a completely clear and cloudy sky, respectively, with consequent adjustment to the adjacent 1 and 7 okta intervals." 181,\Atmosphere\Clouds,,,Cloud drop effective radius,"The area weighted mean radius of liquid water drops, assimilated to spheres of the same volume." -182,\Atmosphere\Clouds,,,Cloud hydrometeor concentration, -183,\Atmosphere\Clouds,,,Effective radius of cloud hydrometeors, +182,\Atmosphere\Clouds,,,Cloud hydrometeor concentration,Number of cloud hydrometeors (or cloud particles) per unit volume. Cloud hydrometeors refer to liquid and/or ice cloud particles. +183,\Atmosphere\Clouds,,,Effective radius of cloud hydrometeors,"An ensemble mean size of cloud hydrometeors derived from size distribution. Cloud hydrometeors refer to liquid and/or ice cloud particles. For liquid phase clouds, the effective radius is defined as the area weighted mean radius of liquid water drops, assimilated to spheres of the same volume. The effective radius of cloud ice particles has been defined in the literature in different ways. Clear and detailed definition should be provided as how this parameter is derived." 186,\Atmosphere\Clouds,,,Melting layer depth in clouds,Depth of the atmospheric layer in cloud where liquid-solid states transform into each other. 188,\Atmosphere\Clouds,,,PSC occurrence,Polar Stratospheric Clouds occurrence. - Accuracy expressed as Hit Rate [HR] and False Alarm Rate [FAR]. Simplified: [FAR/HR] 192,\Atmosphere\Gas phase\Greenhouse Gas,,,CH4 (methane),"IUPAC: methane, PubChem CID: 297, CAS Number: 74-82-8, in gas phase" @@ -47,10 +47,10 @@ notation,path,domains,tags,name,description 253,\Atmosphere\Humidity,,,Mass mixing ratio, 254,\Atmosphere\Humidity,,,Object wetness duration, 255,\Atmosphere\Humidity,,,Water vapour pressure, -257,\Atmosphere\Lightning,,,Lightning discharge energy, -258,\Atmosphere\Lightning,,,Lightning discharge polarity, -259,\Atmosphere\Lightning,,,Lightning discharge rates, -260,\Atmosphere\Lightning,,,"Lightning discharge type (cloud to cloud, cloud to surface)", +257,\Atmosphere\Lightning,,,Lightning discharge current,Current incurred by the lightning discharge. +258,\Atmosphere\Lightning,,,Lightning discharge polarity,Polarity of the charge effectively lowered to ground during a lightning discharge. +259,\Atmosphere\Lightning,,,Lightning discharge rate,"Number of lightning discharges per unit time in a given region (e.g. world-wide) or for a given storm system (e.g. a thunderstorm cell)." +260,\Atmosphere\Lightning,,,"Lightning discharge type (cloud to cloud, cloud to surface)","Lightning discharge type, defined by the path of the lightning discharge: between two clouds or within the same cloud (intra-cloud) or between cloud and ground (cloud-to-ground)." 265,\Atmosphere,,,Past weather,"Predominant characteristic of weather which had existed at the station during a given period of time. [Manual on Codes (WMO-No. 306), Volume I.1. 2011 edition updated in 2019.]" 266,\Atmosphere,,,Present weather,"Weather existing at the time of observation, or under certain conditions, during the hour preceding the time of observation. [Manual on Codes (WMO-No. 306), Volume I.1. 2011 edition updated in 2019.]" 267,\Atmosphere\Radiation,,,Background luminance,Luminous flux received from the background per unit solid angle and per unit area. Note: Luminous flux is a quantity derived from radiant flux by evaluating the radiation according to its action upon the International Commission on Illumination standard photometric observer. @@ -165,8 +165,8 @@ notation,path,domains,tags,name,description 429,\Atmosphere\Gas phase\Reactive Gas\Sulfur containing compounds,,,CS2 (carbon disulfide),"IUPAC: methanedithione, PubChem CID: 6348, CAS Number: 75-15-0, in gas phase" 430,\Atmosphere\Gas phase\Reactive Gas\Sulfur containing compounds,,,SO2,"IUPAC: sulfur dioxide, PubChem CID: 1119, CAS Number: 7446 09-5, in gas phase" 431,\Atmosphere\Lightning\Position,,,Lightning detection (time and location),"Detection of the time and location (latitude, longitude) of lightning events. Accuracy expressed in terms of Hit Rate and False Alarm Rate, which requires predetermination of a specific distance and time tolerance." -432,\Atmosphere\Lightning\Position,,,Lightning direction from station, -433,\Atmosphere\Lightning\Position,,,Lightning distance from station, +432,\Atmosphere\Lightning\Position,,,Lightning discharge direction from station,"Azimuth of the lightning event with respect to the corresponding station." +433,\Atmosphere\Lightning\Position,,,Lightning discharge distance from station,"Distance of the lightning event from the corresponding station." 434,\Atmosphere\Gas phase\Reactive Gas\VOC,,,"C2H2 (ethyne, acetylene)","IUPAC: acetylene, PubChem CID: 6326, CAS Number: 74-86-2, in gas phase" 435,\Atmosphere\Gas phase\Reactive Gas\VOC,,,"C2H2O2 (oxaldehyde, ethanedial)","IUPAC: oxaldehyde, PubChem CID: 7860, CAS Number: 107-22-2, in gas phase" 436,\Atmosphere\Gas phase\Reactive Gas\VOC,,,C2H4 (ethene),"IUPAC: ethene, PubChem CID: 6325, CAS Number: 74-85-1, in gas phase" @@ -240,8 +240,8 @@ notation,path,domains,tags,name,description 504,\Atmosphere\Gas phase\Reactive Gas\VOC,,,t-C4H8 (trans-2-butene),"IUPAC: (E)-but-2-ene, PubChem CID: 62695, CAS Number: 107-01-7, in gas phase" 505,\Atmosphere\Gas phase\Reactive Gas\VOC,,,t-C5H10 (trans-2-pentene),"IUPAC: (E)-pent-2-ene, PubChem CID: 5326161, CAS Number: 109-68-2, in gas phase" 506,\Atmosphere\Clouds\Optical properties,,,Cloud optical depth,"Effective depth (thickness) of a cloud from the viewpoint of radiation propagation. Specifically, OD = exp(-K.Δz), where K is the extinction coefficient [km-1] and Δz the vertical path [km] between the base and the top of the cloud. The WMO Cloud Atlas (https://cloudatlas.wmo.int/en/optical-thickness.html) defines cloud optical thickness as 'The optical thickness of a cloud is the degree to which the cloud prevents light from passing through it.'" -507,\Atmosphere\Clouds\Optical properties,,,Optical depth of fog, -508,\Atmosphere\Clouds\Optical properties,,,Optical depth within each cloud layer, +507,\Atmosphere\Clouds\Optical properties,,,Optical depth of fog,"The degree to which fog prevents light from passing through it. The term 'fog' refers to 'microscopic droplets [that] reduce horizontal visibility at the Earth’s surface to less than 1 km' [WMO, International Cloud Atlas, 2017 ed., https://cloudatlas.wmo.int/en/fog-compared-with-mist.html]." +508,\Atmosphere\Clouds\Optical properties,,,Optical depth within a cloud layer,"A part of cloud optical depth which results from a vertical integral of light extinction by cloud particles between the bottom and top of a cloud layer." 509,\Atmosphere\Clouds\Optical properties,,,Short-wave cloud reflectance,Reflectance of the solar radiation from clouds 521,\Atmosphere\Visibility\Obscurations,,,Extinction coefficient, 522,\Atmosphere\Visibility\Obscurations,,,Hydrometeor radius, @@ -252,7 +252,7 @@ notation,path,domains,tags,name,description 529,\Atmosphere\Total Atmospheric Deposition\Inorganic acid,,,Strong acids, 531,\Atmosphere\Clouds\Position,,,Cloud base height,"For surface observations, height of the cloud base above ground level; for aircraft observations, altitude of the cloud base above mean sea level." 532,\Atmosphere\Clouds\Position,,,Cloud top height,Height of the top of the cloud (highest cloud in case of multi-layer clouds) above mean sea level. -533,\Atmosphere\Clouds\Position,,,Height of inversion, +533,\Atmosphere\Clouds\Position,,,Height of inversion,Height of a stable layer of air with an increased temperature. 534,\Atmosphere\Gas phase\Greenhouse Gas\HCFCs,,,"C2H3Cl2F (1,1-dichloro-1-fluoroethane, HCFC-141b)","IUPAC: 1,1-dichloro-1-fluoroethane, PubChem CID: 15586, CAS Number: 1717-00-6, in gas phase" 535,\Atmosphere\Gas phase\Greenhouse Gas\HCFCs,,,"C2H3ClF2 (1-chloro-1,1-difluoroethane, HCFC-142b)","IUPAC: 1-chloro-1,1-difluoroethane, PubChem CID: 6388, CAS Number: 75-68-3, in gas phase" 536,\Atmosphere\Gas phase\Greenhouse Gas\HFCs,,,"C2H3F3 (1,1,1-trifluoroethane, HFC-143a)","IUPAC: 1,1,1-trifluoroethane, PubChem CID: 9868, CAS Number: 420-46-2, in gas phase" @@ -687,3 +687,5 @@ notation,path,domains,tags,name,description 12321,\Atmosphere\Radionuclide,,radionuclide,Tellurium [Te-131],"IUPAC: tellurium-131, PubChem CID: 6337051, CAS Number: 14683-12-6" 12326,\Atmosphere\Wind,,,"u (u component of horizontal wind vector)","East-west component of the horizontal wind vector, positive value for eastward moving or west-to-east wind. This scalar quantity can be used to represent a value at given location and an instantaneous time or average over spatio-temporal extent or values as a function of spatio-temporal coordinates." 12327,\Atmosphere\Wind,,,"v (v component of horizontal wind vector)","North-south component of the horizontal wind vector, positive value for northward moving or south-to-north wind. This scalar quantity can be used to represent a value at given location and an instantaneous time or average over spatio-temporal extent or values as a function of spatio-temporal coordinates." +12328,\Atmosphere\Lightning,,,Total lightning flash density,"Total number of detected flashes in the corresponding time interval and space unit. Note: The space unit (grid box) should be equal to the horizontal resolution and the accumulation time to the observing cycle." +12329,\Atmosphere\Lightning,,,Lightning flash density cloud-to-ground,"Number of detected cloud-to-ground flashes in the corresponding time interval and space unit. " diff --git a/tables_en/9-02.csv b/tables_en/9-02.csv index 7a1b038a..0d5e5c56 100644 --- a/tables_en/9-02.csv +++ b/tables_en/9-02.csv @@ -1,5 +1,7 @@ notation,name,description +core,core,"WMO data policy for Earth system data that are necessary for the provision of services in support of the protection of life and property and for the well-being of all nations, at a minimum those data described in Annex 1 of the WMO Unified Data Policy, which are required to monitor and predict seamlessly and accurately weather, climate, water and related environmental conditions. WMO Members shall provide core data on a free and unrestricted basis. Reference: Resolution 1 (Cg-Ext(2021)) – WMO Unified Policy for the International Exchange of Earth System Data (World Meteorological Congress: Abridged Final Report of the Extraordinary Session (WMO-No. 1281))." noLimitation,no limitation,No limitation on distribution or use +recommended,recommended,"WMO data policy for Earth system data that are required to support Earth system monitoring and prediction activities at the global, regional and national levels and to further assist other WMO Members with the provision of weather, climate, water and related environmental services in their States and Territories. WMO Members should provide access to all recommended data exchanged under the auspices of WMO without charge to public research and education communities for their non-commercial activities, but may place conditions on their use otherwise. Reference: Resolution 1 (Cg-Ext(2021)) – WMO Unified Policy for the International Exchange of Earth System Data (World Meteorological Congress: Abridged Final Report of the Extraordinary Session (WMO-No. 1281))." WMOAdditional,WMOAdditional,WMO Additional Data: free and unrestricted access to data and products exchanged under the auspices of WMO to the research and education communities for non-commercial activities. A more precise definition of the data policy may be additionally supplied within the metadata. In all cases it shall be the responsibility of the data consumer to ensure that they understand the data policy specified by the data provider - which may necessitate dialogue with the data publisher for confirmation of terms and conditions. WMOEssential,WMOEssential,WMO Essential Data: free and unrestricted international exchange of basic data and products. WMOOther,WMOOther,"Data identified for global distribution via WMO infrastructure (GTS / WIS) that is not covered by WMO Resolution 25 neither WMO Resolution 40; e.g. aviation OPMET data. Data marked with """"WMOOther"""" data policy shall be treated like """"WMOAdditional"""" where a more precise definition of the data policy may be additionally supplied within the metadata. In all cases it shall be the responsibility of the data consumer to ensure that they understand the data policy specified by the data provider - which may necessitate dialogue with the data publisher for confirmation of terms and conditions." diff --git a/tables_en/superseded.csv b/tables_en/superseded.csv index c8a71294..d9cf3e2c 100644 --- a/tables_en/superseded.csv +++ b/tables_en/superseded.csv @@ -108,7 +108,7 @@ http://codes.wmo.int/wmdr/unit/s-1,http://codes.wmo.int/wmdr/unit/Hz http://codes.wmo.int/wmdr/unit/m2_Hz-1,http://codes.wmo.int/wmdr/unit/m2.s http://codes.wmo.int/wmdr/unit/ug_m-3_20C,http://codes.wmo.int/wmdr/unit/ug.m-3 http://codes.wmo.int/wmdr/unit/ug_m-3_25C,http://codes.wmo.int/wmdr/unit/ug.m-3 -http://codes.wmo.int/wmdr/unit/mg_m-3_25C,http://codes.wmo.int/wmdr/unit/ug.m-3 +http://codes.wmo.int/wmdr/unit/mg_m-3_25C,http://codes.wmo.int/wmdr/unit/mg.m-3 http://codes.wmo.int/wmdr/unit/ug_N_m-3,http://codes.wmo.int/wmdr/unit/ug.m-3 http://codes.wmo.int/wmdr/unit/ug_C_m-3,http://codes.wmo.int/wmdr/unit/ug.m-3 http://codes.wmo.int/wmdr/unit/ug_S_m-3,http://codes.wmo.int/wmdr/unit/ug.m-3 diff --git a/wmdr/ObservedVariableAtmosphere/182.ttl b/wmdr/ObservedVariableAtmosphere/182.ttl index 74569a8d..1e2d8971 100644 --- a/wmdr/ObservedVariableAtmosphere/182.ttl +++ b/wmdr/ObservedVariableAtmosphere/182.ttl @@ -5,4 +5,4 @@ <182> a skos:Concept ; rdfs:label "Cloud hydrometeor concentration" ; skos:notation "182" ; - dct:description ""@en . + dct:description "Number of cloud hydrometeors (or cloud particles) per unit volume. Cloud hydrometeors refer to liquid and/or ice cloud particles."@en . diff --git a/wmdr/ObservedVariableAtmosphere/183.ttl b/wmdr/ObservedVariableAtmosphere/183.ttl index f68093e2..cfe3de66 100644 --- a/wmdr/ObservedVariableAtmosphere/183.ttl +++ b/wmdr/ObservedVariableAtmosphere/183.ttl @@ -5,4 +5,4 @@ <183> a skos:Concept ; rdfs:label "Effective radius of cloud hydrometeors" ; skos:notation "183" ; - dct:description ""@en . + dct:description "An ensemble mean size of cloud hydrometeors derived from size distribution. Cloud hydrometeors refer to liquid and/or ice cloud particles. For liquid phase clouds, the effective radius is defined as the area weighted mean radius of liquid water drops, assimilated to spheres of the same volume. The effective radius of cloud ice particles has been defined in the literature in different ways. Clear and detailed definition should be provided as how this parameter is derived."@en . diff --git a/wmdr/ObservedVariableAtmosphere/257.ttl b/wmdr/ObservedVariableAtmosphere/257.ttl index fb9aa0c8..0b982009 100644 --- a/wmdr/ObservedVariableAtmosphere/257.ttl +++ b/wmdr/ObservedVariableAtmosphere/257.ttl @@ -3,6 +3,6 @@ @prefix dct: . <257> a skos:Concept ; - rdfs:label "Lightning discharge energy" ; + rdfs:label "Lightning discharge current" ; skos:notation "257" ; - dct:description ""@en . + dct:description "Current incurred by the lightning discharge."@en . diff --git a/wmdr/ObservedVariableAtmosphere/258.ttl b/wmdr/ObservedVariableAtmosphere/258.ttl index 4fc7dd4b..0bed1819 100644 --- a/wmdr/ObservedVariableAtmosphere/258.ttl +++ b/wmdr/ObservedVariableAtmosphere/258.ttl @@ -5,4 +5,4 @@ <258> a skos:Concept ; rdfs:label "Lightning discharge polarity" ; skos:notation "258" ; - dct:description ""@en . + dct:description "Polarity of the charge effectively lowered to ground during a lightning discharge."@en . diff --git a/wmdr/ObservedVariableAtmosphere/259.ttl b/wmdr/ObservedVariableAtmosphere/259.ttl index 86081d38..eb943e96 100644 --- a/wmdr/ObservedVariableAtmosphere/259.ttl +++ b/wmdr/ObservedVariableAtmosphere/259.ttl @@ -3,6 +3,6 @@ @prefix dct: . <259> a skos:Concept ; - rdfs:label "Lightning discharge rates" ; + rdfs:label "Lightning discharge rate" ; skos:notation "259" ; - dct:description ""@en . + dct:description "Number of lightning discharges per unit time in a given region (e.g. world-wide) or for a given storm system (e.g. a thunderstorm cell)."@en . diff --git a/wmdr/ObservedVariableAtmosphere/260.ttl b/wmdr/ObservedVariableAtmosphere/260.ttl index 5ad37436..50de32ce 100644 --- a/wmdr/ObservedVariableAtmosphere/260.ttl +++ b/wmdr/ObservedVariableAtmosphere/260.ttl @@ -5,4 +5,4 @@ <260> a skos:Concept ; rdfs:label "Lightning discharge type (cloud to cloud, cloud to surface)" ; skos:notation "260" ; - dct:description ""@en . + dct:description "Lightning discharge type, defined by the path of the lightning discharge: between two clouds or within the same cloud (intra-cloud) or between cloud and ground (cloud-to-ground)."@en . diff --git a/wmdr/ObservedVariableAtmosphere/432.ttl b/wmdr/ObservedVariableAtmosphere/432.ttl index 6c83b37f..0737bc55 100644 --- a/wmdr/ObservedVariableAtmosphere/432.ttl +++ b/wmdr/ObservedVariableAtmosphere/432.ttl @@ -3,6 +3,6 @@ @prefix dct: . <432> a skos:Concept ; - rdfs:label "Lightning direction from station" ; + rdfs:label "Lightning discharge direction from station" ; skos:notation "432" ; - dct:description ""@en . + dct:description "Azimuth of the lightning event with respect to the corresponding station."@en . diff --git a/wmdr/ObservedVariableAtmosphere/433.ttl b/wmdr/ObservedVariableAtmosphere/433.ttl index 380d476a..18f2fdf4 100644 --- a/wmdr/ObservedVariableAtmosphere/433.ttl +++ b/wmdr/ObservedVariableAtmosphere/433.ttl @@ -3,6 +3,6 @@ @prefix dct: . <433> a skos:Concept ; - rdfs:label "Lightning distance from station" ; + rdfs:label "Lightning discharge distance from station" ; skos:notation "433" ; - dct:description ""@en . + dct:description "Distance of the lightning event from the corresponding station."@en . diff --git a/wmdr/ObservedVariableAtmosphere/507.ttl b/wmdr/ObservedVariableAtmosphere/507.ttl index 6be72916..b6507f2d 100644 --- a/wmdr/ObservedVariableAtmosphere/507.ttl +++ b/wmdr/ObservedVariableAtmosphere/507.ttl @@ -5,4 +5,4 @@ <507> a skos:Concept ; rdfs:label "Optical depth of fog" ; skos:notation "507" ; - dct:description ""@en . + dct:description "The degree to which fog prevents light from passing through it. The term 'fog' refers to 'microscopic droplets [that] reduce horizontal visibility at the Earth’s surface to less than 1 km' [WMO, International Cloud Atlas, 2017 ed., https://cloudatlas.wmo.int/en/fog-compared-with-mist.html]."@en . diff --git a/wmdr/ObservedVariableAtmosphere/508.ttl b/wmdr/ObservedVariableAtmosphere/508.ttl index d0fdf0fc..365ee7da 100644 --- a/wmdr/ObservedVariableAtmosphere/508.ttl +++ b/wmdr/ObservedVariableAtmosphere/508.ttl @@ -3,6 +3,6 @@ @prefix dct: . <508> a skos:Concept ; - rdfs:label "Optical depth within each cloud layer" ; + rdfs:label "Optical depth within a cloud layer" ; skos:notation "508" ; - dct:description ""@en . + dct:description "A part of cloud optical depth which results from a vertical integral of light extinction by cloud particles between the bottom and top of a cloud layer."@en . diff --git a/wmdr/ObservedVariableAtmosphere/533.ttl b/wmdr/ObservedVariableAtmosphere/533.ttl index 50ec809d..6088e82d 100644 --- a/wmdr/ObservedVariableAtmosphere/533.ttl +++ b/wmdr/ObservedVariableAtmosphere/533.ttl @@ -5,4 +5,4 @@ <533> a skos:Concept ; rdfs:label "Height of inversion" ; skos:notation "533" ; - dct:description ""@en . + dct:description "Height of a stable layer of air with an increased temperature."@en .