{"public_id":"co_71a91249c3c4000da878fd315fb7f3bb","status":"active","merged_into_public_id":null,"resolved_public_id":"co_71a91249c3c4000da878fd315fb7f3bb","name":"African easterly jet","description":"A summer easterly atmospheric jet over West Africa located above the monsoon westerlies.","aliases":["AEJ"],"types":["atmospheric circulation"],"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"concept","status":"active","confidence":null,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","concept.status"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"papers":[{"corpus_id":129820176,"title":"Generation of the African Easterly Jet and Its Role in Determining West African Precipitation","citation_count":432,"url":"https://sah.borca.ai/papers/129820176"}],"claims":[{"public_id":"cl_0924331425ad4bc5bd99bc632007863c","text":"A thermally direct ageostrophic circulation accelerates the largely geostrophic zonal flow and helps maintain the jet.","corpus_id":129820176,"url":"https://sah.borca.ai/claims/cl_0924331425ad4bc5bd99bc632007863c"},{"public_id":"cl_198deb6853132997a94d1d443b245383","text":"The African easterly jet forms over West Africa in summer as a result of strong meridional soil moisture gradients.","corpus_id":129820176,"url":"https://sah.borca.ai/claims/cl_198deb6853132997a94d1d443b245383"},{"public_id":"cl_2384a7b3c702cc9647714e96e8e4a90a","text":"Realistic surface wetness contrasts between the Sahara and equatorial Africa generate strong positive meridional temperature gradients that produce easterly shear sufficient to establish the African easterly jet above the monsoon westerlies.","corpus_id":129820176,"url":"https://sah.borca.ai/claims/cl_2384a7b3c702cc9647714e96e8e4a90a"},{"public_id":"cl_4f7bc7e0d5b9f111c761df401700ce99","text":"Moisture divergence between 600 and 800 mb over West Africa south of the African easterly jet is important for determining total column moisture convergence and links jet dynamics to the sensitivity of West African precipitation to surface conditions.","corpus_id":129820176,"url":"https://sah.borca.ai/claims/cl_4f7bc7e0d5b9f111c761df401700ce99"},{"public_id":"cl_e509988b91698d9496efcf595440df54","text":"Summertime distributions of solar radiation, sea surface temperatures, or clouds do not produce the African easterly jet without soil moisture gradients.","corpus_id":129820176,"url":"https://sah.borca.ai/claims/cl_e509988b91698d9496efcf595440df54"}],"related_concepts":[],"resolved_url":"https://sah.borca.ai/concepts/co_71a91249c3c4000da878fd315fb7f3bb","url":"https://sah.borca.ai/concepts/co_71a91249c3c4000da878fd315fb7f3bb"}