Hovmöller diagram

A diagram is a commonly used way of plotting meteorological data to highlight the role of waves. The axes of a Hovmöller diagram are longitude (x-axis) and time (y-axis) with the value of some field represented by color or shade.The diagram was invented by Ernest Aabo Hovmöller (1912- 2008), a Danish meteorologist from Nyköbing-Mors who emigrated to Sweden in 1946 to work at SMHI.

An example: http://locust.mmm.ucar.edu/episodes/episodes_paper_technote.html#_Toc516370405