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The influence of the recent deep and prolonged solar minimum on thedaytime zonal and vertical plasma drift velocities duringquiet time is investigated in this work. Analyzing the dataobtained from incoherent scatter radar from Jicamarca(11.95° S, 76.87° W) we observe an anomalousbehavior of the zonal plasma drift during June 2008 characterized bylower than usual daytime westward drift and its early afternoonreversal to eastward. As a case study the zonal drift observed on24 June 2008 is modeled using a realistic low-latitude ionospheresimulated by the Sheffield University Plasmasphere-IonosphereModel-INPE (SUPIM-INPE).  The results show that an anomalously lowzonal wind was mainly responsible for the observed anomalousbehavior in the zonal drift. A comparative study of the verticalplasma drifts obtained from magnetometer data for some periods ofmaximum (2000–2002) and minimum solar activity (1998, 2008, 2010)phases reveal a considerable decrease on the E-region conductivityand the dynamo electric field during 2008. However, we believe thatthe contribution of these characteristics to the unusual behavior ofthe zonal plasma drift is significantly smaller than that arisingfrom the anomalously low zonal wind. The SUPIM-INPE result of thecritical frequency of the F layer (<i>fo</i>F2) over Jicamarca suggesteda lower radiation flux than that predicted by solar irradiance model(SOLAR2000) for June 2008

Unusual behavior of quiet-time zonal and vertical plasma drift velocities over Jicamarca during the recent extended solar minimum of 2008