ሌሎች እንደሚጠቁሙት እነዚህ "ግዙፍ ቀለበቶች" በቅርብ ጊዜ ውስጥ ተተክለው "የአየር ሁኔታ ፊኛዎችን" መሬት ላይ ለማቆየት ያገለግሉ ነበር።
Others suggest that these "giant rings" were put in place in the recent past and were used to secure "weather balloons" to the ground.