To reassure Bigpants;
>>>"Were it still with us it would be an ideal platform for measuring ash concentrations and could contribute real data in support of predictions."
The BAe 146-301 G-LUXE has become far more capable than Snoopy, and has recently had extra instrumentation fitted especially for the ash sniffing role. It is contributing real data in support of the science models used to predict the location of the ash.
>>>"Today we rely on a partnership programme from Cranfield run by BAE and others using a modified RJ."
The aircraft is tasked by the science teams involved in the research - Met Office and University, to be pedantic (on pprune, never!) BAE are the aircraft owners, they do not define the science programme.
>>>"The UK contribution of an RJ run by BAE and others looks a bit light weight to me...."
It most certainly is not!!
The aircraft tasking is continously under review so that it is used to best effect and, as you can see from the FAAM website, it is currently devoted to the 'VOLCANO' tasking. There is intense activity 'behind the scenes' to ensure aircraft and instrument availability and to optimise the aircraft operation.
G-LUXE was the prototype 146-100 and was flown then as G-SHHH (whisperjet). The airframe was then modified to become the 146-300 test airframe, now G-LUXE, before the conversion to type 146-301, the unique aircraft you see now. I believe that means it was never an RJ.
Jim