Best practice for using thermal imaging in damp conditions?

I've recently picked up a FLIR E5 (cost me £850, bit pricey but worth it for the quality) and I'm planning to do some investigations on the Yorkshire moors over the next few months. The problem is: the moors are wet. Almost constantly. I've done a few tests in my flat and the moisture seems to play absolute havoc with the readings.

Has anyone got experience using thermal imaging gear in genuinely damp environments? I'm wondering if I need to invest in some kind of protective casing or if there are settings I'm missing. Currently getting false positives all over the shop - can't tell if it's actual thermal anomalies or just water vapour doing weird things.

Any advice appreciated. I've got a proper investigation lined up for the spring equinox and I want to get this sorted before then.

Get yourself a dry bag or a pelican case for the camera itself. Moisture inside the lens is your enemy. I learned this the hard way investigating Pendle Hill last autumn and absolutely ruined a decent camera. Also, run your investigations after rainfall rather than during - gives the environment time to settle and you'll get cleaner readings. The thermal signature of evaporating water is distinctive once you've seen it a few times, so you'll learn to spot false positives.

FLIR E5 is decent kit but honestly for moor work you might want to go full environmental monitoring - thermal, EMF, humidity all at once. Then you can correlate the data and rule out environmental interference. Bit more expensive but you'll actually know what you're measuring instead of just guessing. I use a setup that costs about £1200 all in but the quality of data is miles better.

Have you considered that the moors might want to be investigated? The thermal anomalies might not be false positives. I had a similar situation on Bodmin Moor last summer and my team decided to embrace the noise rather than try to eliminate it. Turned out we were detecting something genuinely anomalous that showed up consistently across three separate investigation nights. Sometimes the environment is trying to communicate with you.