Simulations of Deep Extra-galactic Surveys with Herschel-SPIRE

The SPIRE Photometer Simulator reproduces the entire Herschel-SPIRE system in a modular IDL program. Almost every aspect of the operation of SPIRE can be investigated in a systematic way to ensure that observations are performed in the most efficient way possible when Herschel flies. This paper describes some of the work done with the Simulator to help prepare for large observing programmes such as deep extra-galactic, high-redshift surveys.