Observed summer weather regimes and associated extreme precipitation over Distrito Federal, west-central Brazil

Circulation Patterns and Associated Rainfall Over South Tropical South America: GCMs Evaluation During the Dry‐To‐Wet Transition Season

“…In their study, Espinoza et al. (2021) identified and characterized nine intraseasonal CPs in tropical South America in agreement with previous studies (da Anunciação et al., 2014; Espinoza et al., 2012; Paccini et al., 2018). Daily CPs were constructed only based on zonal and meridional winds at 850 hPa.…”

“…In order to evaluate whether the different GCMs are able to reproduce the observed atmospheric CPs or weather types over STSA as identified by Espinoza et al (2021), a similar methodology is proposed here. In their study, Espinoza et al (2021) identified and characterized nine intraseasonal CPs in tropical South America in agreement with previous studies (da Anunciação et al, 2014;Espinoza et al, 2012;Paccini et al, 2018). Daily CPs were constructed only based on zonal and meridional winds at 850 hPa.…”

“…Precipitation (PP) over STSA presents a marked spatio‐temporal variability, strongly controlled by the South American Monsoon System (SAMS), with rainfall maxima during its active phase during the austral summer (Marengo et al., 2012; Vera et al., 2006). The monsoonal circulation ‐ which develops in response to seasonal changes in thermal land‐sea contrasts ‐ is connected to different documented atmospheric features, including a NW‐SE band of convergence and convective activity over the southeast of South America and the adjacent South Atlantic ocean known as the South Atlantic Convergence Zone (SACZ), an anticyclonic center located in the upper‐troposphere over Bolivia (Bolivian high) and the presence of the low‐level jet of South America (SALLJ) east of the Andes (Carvalho et al., 2004; Carvalho & Silva‐Dias, 2021; da Anunciação et al., 2014; Gan et al., 2004; Garreaud, 2009; Grimm et al., 2020; Montini et al., 2019; Nogués‐Paegle & Mo, 1997; Wang & Fu, 2002).…”

“…in the upper-troposphere over Bolivia (Bolivian high) and the presence of the low-level jet of South America (SALLJ) east of the Andes (Carvalho et al, 2004;Carvalho & Silva-Dias, 2021;da Anunciação et al, 2014;Gan et al, 2004;Garreaud, 2009;Grimm et al, 2020;Montini et al, 2019;Nogués-Paegle & Mo, 1997;Wang & Fu, 2002).…”

IWAS II: integrated water resources management under different hydrological, climatic and socio-economic conditions

“…Kloss et al 2014Graebe et al 2013;Subagadis et al 2014;Walther et al 2014), R5 (e.g. Borges et al 2014;Da Anunciação et al 2014;Gonçalves et al 2013) to address a variety of questions for surface water and groundwater management. More general works were Barfus and Bernhofer (2014) who applied global climate models (GCM) to different model regions and Pluntke et al (2014) dealing with uncertainty in hydrological modeling due to data scarcity.…”