In March 2023, we had our first ISSI in-person meeting in Bern.<\/p>\n
We discussed:<\/p>\n
– An overview of each GCM and a comparison of the \u201cchemistry-free\u201d results
\n– Discuss and decide on the chemical and radiation schemes
\n– Discuss the details and challenges in implementation<\/p>\n
We have finalized the benchmark tests as follows:<\/p>\n
Test description:<\/b><\/p>\n
Model boundaries:<\/b>
\n– The lowest layer needs to be at least 100 bar. Use convective adjustment.
\n– Use approximately 2-4 degrees or equivalents for the horizontal resolution
\n– Use the least damping and sponge layers that can keep the simulation stable<\/p>\n
Test 1 (passive tracer):<\/b>
\n0. Run the nominal GCM until the steady state
\n1. After the steady state has been achieved, initializing passive tracers from the dayside equatorial region below 1 bar: for the region below 1 bar, +\/- 30 degree longitude and +\/- 30 degree latitude, fix a uniform mixing ratio of passive tracers from.
\n2. Report 0, 1, 50, 100 days after the tracers are initialized
\n(In practice, Test 1 is embedded in Test 2 using an inert gas)<\/p>\n
Test 2 (double-grey with mini-chem):<\/b> Test 3 (correlated-k with mini-chem):<\/b><\/p>\n This is the same test as Test 2, but the correlated-k opacities are used for the RT. In March 2023, we had our first ISSI in-person meeting in Bern. We discussed: – An overview of each GCM and a comparison of the \u201cchemistry-free\u201d results – Discuss and decide on the chemical and radiation schemes – Discuss the details and challenges in implementation We have finalized the benchmark tests as follows: Test description: […]<\/p>\n","protected":false},"author":119,"featured_media":27,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-23","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/pages\/23","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/users\/119"}],"replies":[{"embeddable":true,"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/comments?post=23"}],"version-history":[{"count":2,"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/pages\/23\/revisions"}],"predecessor-version":[{"id":28,"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/pages\/23\/revisions\/28"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/media\/27"}],"wp:attachment":[{"href":"https:\/\/teams.issibern.ch\/hotjupiteratmospheres\/wp-json\/wp\/v2\/media?parent=23"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n0. Run the nominal GCM until the steady state
\n1. Use the following constant opacities:
\nkappa_IR = \u00a00.003, kappa_shortwave = 0.00085 (m^2 kg^-1)
\n2. For internal heating, relax the temperature at the bottom toward the temperature given by an adiabat with Tint = 350K. A relaxation time of 10^5 sec is used in Steinrueck 2023 but choose whatever works better. In the case that the temperature relaxation at the bottom is difficult to implement, use Tint = 350 K internal flux instead.
\n3. After the steady state has been achieved, include the chemical tracers.<\/p>\n
\nThe “mutual species” among all models to include are:<\/p>\n<\/div>\n
\n– Na
\n– K
\n– CO2
\n– CH4
\n– NH3
\n– CO
\n– HCN
\n– CIA H2-He
\n– CIA H2-H2<\/div>\n","protected":false},"excerpt":{"rendered":"