@article{fdi:010072066, title = {{M}ajor role of water bodies on diurnal precipitation regimes in {E}astern {A}frica}, author = {{C}amberlin, {P}. and {G}itau, {W}. and {P}lanchon, {O}livier and {D}ubreuil, {V}. and {F}unatsu, {B}. {M}. and {P}hilippon, {N}.}, editor = {}, language = {{ENG}}, abstract = {{M}ean diurnal rainfall regimes over {E}astern {A}frica (also referred to as the {G}reater {H}orn of {A}frica) are studied based on 3-hourly data from the {TRMM} 3{B}42 data set, averaged over a 17-year period (1998-2014). {T}he consistency with long-term mean raingauge data, available for partly independent periods, varies from good ({S}udan, {E}thiopia, {E}ritrea and {S}omalia) to very good ({K}enya, {T}anzania and {U}ganda). {O}ver sea ({I}ndian {O}cean and {R}ed {S}ea), the diurnal rainfall distribution is quite uniform; however, a morning peak dominates and there is evidence of offshore phase propagation south of the equator. {O}ver land, both rainfall frequency and rainfall amounts show a dominant afternoon maximum (1500-1800 {E}ast {A}frican {T}ime, i.e. {GMT} + 3). {H}owever, many inland regions show a delayed rainfall maximum (evening, night-time or morning). {T}he evening to night-time maximum found over some land areas is associated with a phase propagation from areas showing an afternoon peak. {T}his occurs west of high ground areas ({S}udan and parts of the {G}reat {L}akes region) and in belts parallel to the seashores ({E}ritrea, northeastern {E}thiopia, {S}omalia and eastern {K}enya). {T}he latter provide indirect evidence that sea breeze effects can be detected at unexpectedly great distances from the coast (up to 300-400 km) in parts of {E}astern {A}frica. {A} remarkable ring of early afternoon (1500) maxima is found around most lakes, although some east-west asymmetries occur. {O}ver the lakes, a morning or late night maximum is mostly found. {I}t is generally inversely related to the distance to the shorelines for the larger lakes, but over the mid-size lakes it is replaced by or competes with a late afternoon to evening maximum.}, keywords = {{H}orn of {A}frica ; {E}ast {A}frica ; {L}ake {V}ictoria ; {I}ndian {O}cean ; rainfall ; diurnal cycle ; sea breeze ; lakes ; {AFRIQUE} {DE} {L}'{EST} ; {OCEAN} {INDIEN} ; {VICTORIA} {LAC}}, booktitle = {}, journal = {{I}nternational {J}ournal of {C}limatology}, volume = {38}, numero = {2}, pages = {613--629}, ISSN = {0899-8418}, year = {2018}, DOI = {10.1002/joc.5197}, URL = {https://www.documentation.ird.fr/hor/fdi:010072066}, }