Eintrag weiter verarbeiten
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective
Gespeichert in:
| Zeitschriftentitel: | Journal of Advances in Modeling Earth Systems |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | Journal of Advances in Modeling Earth Systems, 11, 2019, 1, S. 113-126 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
|
| Schlagwörter: |
| author_facet |
Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji |
|---|---|
| author |
Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji |
| spellingShingle |
Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji Journal of Advances in Modeling Earth Systems The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change |
| author_sort |
tian, yang |
| spelling |
Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji 1942-2466 1942-2466 American Geophysical Union (AGU) General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change http://dx.doi.org/10.1029/2018ms001451 <jats:title>Abstract</jats:title><jats:p>A Lagrangian Particle Dispersion Model is embedded into large eddy simulations to diagnose the responses of shallow cumulus convection to a small‐amplitude large‐scale temperature perturbation. The Lagrangian framework allows for a decomposition of the vertical momentum budget and diagnosis of the forces that regulate cloudy updrafts. The results are used to shed light on the parameterization of vertical velocity in convective schemes, where the treatment of the effects of entrainment as well as buoyancy‐induced and mechanically induced pressure gradients remains highly uncertain. We show that both buoyancy‐induced and mechanically induced pressure gradients are important for the vertical momentum budget of cloudy updrafts, whereas the entrainment dilution term is relatively less important. Based on the analysis of the dominant force balance, we propose a simple model to derive the perturbation pressure gradient forces. We further illustrate that the effective buoyancy and dynamic perturbation pressure can be approximated to a good extent using a simple cylindrical updraft model given the cloud radius. This finding has the potential for improving the parameterization of vertical velocity in convective schemes and the development of a unified scheme for cumulus convection.</jats:p> The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective Journal of Advances in Modeling Earth Systems |
| doi_str_mv |
10.1029/2018ms001451 |
| facet_avail |
Online Free |
| finc_class_facet |
Technik Chemie und Pharmazie Geologie und Paläontologie Geographie Physik |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAyOS8yMDE4bXMwMDE0NTE |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAyOS8yMDE4bXMwMDE0NTE |
| institution |
DE-D275 DE-Bn3 DE-Brt1 DE-Zwi2 DE-D161 DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 |
| imprint |
American Geophysical Union (AGU), 2019 |
| imprint_str_mv |
American Geophysical Union (AGU), 2019 |
| issn |
1942-2466 |
| issn_str_mv |
1942-2466 |
| language |
English |
| mega_collection |
American Geophysical Union (AGU) (CrossRef) |
| match_str |
tian2019theverticalmomentumbudgetofshallowcumulusconvectioninsightsfromalagrangianperspective |
| publishDateSort |
2019 |
| publisher |
American Geophysical Union (AGU) |
| recordtype |
ai |
| record_format |
ai |
| series |
Journal of Advances in Modeling Earth Systems |
| source_id |
49 |
| title |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_unstemmed |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_full |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_fullStr |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_full_unstemmed |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_short |
The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_sort |
the vertical momentum budget of shallow cumulus convection: insights from a lagrangian perspective |
| topic |
General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change |
| url |
http://dx.doi.org/10.1029/2018ms001451 |
| publishDate |
2019 |
| physical |
113-126 |
| description |
<jats:title>Abstract</jats:title><jats:p>A Lagrangian Particle Dispersion Model is embedded into large eddy simulations to diagnose the responses of shallow cumulus convection to a small‐amplitude large‐scale temperature perturbation. The Lagrangian framework allows for a decomposition of the vertical momentum budget and diagnosis of the forces that regulate cloudy updrafts. The results are used to shed light on the parameterization of vertical velocity in convective schemes, where the treatment of the effects of entrainment as well as buoyancy‐induced and mechanically induced pressure gradients remains highly uncertain. We show that both buoyancy‐induced and mechanically induced pressure gradients are important for the vertical momentum budget of cloudy updrafts, whereas the entrainment dilution term is relatively less important. Based on the analysis of the dominant force balance, we propose a simple model to derive the perturbation pressure gradient forces. We further illustrate that the effective buoyancy and dynamic perturbation pressure can be approximated to a good extent using a simple cylindrical updraft model given the cloud radius. This finding has the potential for improving the parameterization of vertical velocity in convective schemes and the development of a unified scheme for cumulus convection.</jats:p> |
| container_issue |
1 |
| container_start_page |
113 |
| container_title |
Journal of Advances in Modeling Earth Systems |
| container_volume |
11 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792343890803556353 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T16:58:54.619Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=The+Vertical+Momentum+Budget+of+Shallow+Cumulus+Convection%3A+Insights+From+a+Lagrangian+Perspective&rft.date=2019-01-01&genre=article&issn=1942-2466&volume=11&issue=1&spage=113&epage=126&pages=113-126&jtitle=Journal+of+Advances+in+Modeling+Earth+Systems&atitle=The+Vertical+Momentum+Budget+of+Shallow+Cumulus+Convection%3A+Insights+From+a+Lagrangian+Perspective&aulast=Nie&aufirst=Ji&rft_id=info%3Adoi%2F10.1029%2F2018ms001451&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792343890803556353 |
| author | Tian, Yang, Kuang, Zhiming, Singh, Martin S., Nie, Ji |
| author_facet | Tian, Yang, Kuang, Zhiming, Singh, Martin S., Nie, Ji, Tian, Yang, Kuang, Zhiming, Singh, Martin S., Nie, Ji |
| author_sort | tian, yang |
| container_issue | 1 |
| container_start_page | 113 |
| container_title | Journal of Advances in Modeling Earth Systems |
| container_volume | 11 |
| description | <jats:title>Abstract</jats:title><jats:p>A Lagrangian Particle Dispersion Model is embedded into large eddy simulations to diagnose the responses of shallow cumulus convection to a small‐amplitude large‐scale temperature perturbation. The Lagrangian framework allows for a decomposition of the vertical momentum budget and diagnosis of the forces that regulate cloudy updrafts. The results are used to shed light on the parameterization of vertical velocity in convective schemes, where the treatment of the effects of entrainment as well as buoyancy‐induced and mechanically induced pressure gradients remains highly uncertain. We show that both buoyancy‐induced and mechanically induced pressure gradients are important for the vertical momentum budget of cloudy updrafts, whereas the entrainment dilution term is relatively less important. Based on the analysis of the dominant force balance, we propose a simple model to derive the perturbation pressure gradient forces. We further illustrate that the effective buoyancy and dynamic perturbation pressure can be approximated to a good extent using a simple cylindrical updraft model given the cloud radius. This finding has the potential for improving the parameterization of vertical velocity in convective schemes and the development of a unified scheme for cumulus convection.</jats:p> |
| doi_str_mv | 10.1029/2018ms001451 |
| facet_avail | Online, Free |
| finc_class_facet | Technik, Chemie und Pharmazie, Geologie und Paläontologie, Geographie, Physik |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAyOS8yMDE4bXMwMDE0NTE |
| imprint | American Geophysical Union (AGU), 2019 |
| imprint_str_mv | American Geophysical Union (AGU), 2019 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
| issn | 1942-2466 |
| issn_str_mv | 1942-2466 |
| language | English |
| last_indexed | 2024-03-01T16:58:54.619Z |
| match_str | tian2019theverticalmomentumbudgetofshallowcumulusconvectioninsightsfromalagrangianperspective |
| mega_collection | American Geophysical Union (AGU) (CrossRef) |
| physical | 113-126 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher | American Geophysical Union (AGU) |
| record_format | ai |
| recordtype | ai |
| series | Journal of Advances in Modeling Earth Systems |
| source_id | 49 |
| spelling | Tian, Yang Kuang, Zhiming Singh, Martin S. Nie, Ji 1942-2466 1942-2466 American Geophysical Union (AGU) General Earth and Planetary Sciences Environmental Chemistry Global and Planetary Change http://dx.doi.org/10.1029/2018ms001451 <jats:title>Abstract</jats:title><jats:p>A Lagrangian Particle Dispersion Model is embedded into large eddy simulations to diagnose the responses of shallow cumulus convection to a small‐amplitude large‐scale temperature perturbation. The Lagrangian framework allows for a decomposition of the vertical momentum budget and diagnosis of the forces that regulate cloudy updrafts. The results are used to shed light on the parameterization of vertical velocity in convective schemes, where the treatment of the effects of entrainment as well as buoyancy‐induced and mechanically induced pressure gradients remains highly uncertain. We show that both buoyancy‐induced and mechanically induced pressure gradients are important for the vertical momentum budget of cloudy updrafts, whereas the entrainment dilution term is relatively less important. Based on the analysis of the dominant force balance, we propose a simple model to derive the perturbation pressure gradient forces. We further illustrate that the effective buoyancy and dynamic perturbation pressure can be approximated to a good extent using a simple cylindrical updraft model given the cloud radius. This finding has the potential for improving the parameterization of vertical velocity in convective schemes and the development of a unified scheme for cumulus convection.</jats:p> The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective Journal of Advances in Modeling Earth Systems |
| spellingShingle | Tian, Yang, Kuang, Zhiming, Singh, Martin S., Nie, Ji, Journal of Advances in Modeling Earth Systems, The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective, General Earth and Planetary Sciences, Environmental Chemistry, Global and Planetary Change |
| title | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_full | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_fullStr | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_full_unstemmed | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_short | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| title_sort | the vertical momentum budget of shallow cumulus convection: insights from a lagrangian perspective |
| title_unstemmed | The Vertical Momentum Budget of Shallow Cumulus Convection: Insights From a Lagrangian Perspective |
| topic | General Earth and Planetary Sciences, Environmental Chemistry, Global and Planetary Change |
| url | http://dx.doi.org/10.1029/2018ms001451 |