A tropical upper tropospheric trough -LRB- TUTT -RRB- is a trough situated in upper-level -LRB- at about NUMBER@1 hPa -RRB- tropics .

A MISC@1 -LRB- TUTT -RRB- is a trough situated in upper-level -LRB- at about NUMBER@1 hPa -RRB- tropics .
