U.S. Department of the Interior U.S. Geological Survey US Geological Survey Observatory Improvements Carol A. Finn and Alan Berarducci USGS Geomagnetism Program 2010 IAGA Workshop, Changchun, China

USGS Observatories

Observatory Improvements  Deadhorse, Alaska – new observatory  Barrow, AK – new observatory building  Fresno, CA – new observatory building  Guam – new office and warehouse buildings  Electrical upgrades at SJG, HON, BOU, and GUA  Newport, WA – rebuild water system  Multiple locations – remote HVAC systems  Multiple locations – baseboard heaters

New Deadhorse Observatory

New Barrow Observatory Building

New Fresno Observatory Building

Electrical Upgrades Guam HonoluluSan Juan Boulder

Guam Office and Warehouse Buildings

Newport Observatory Water System

Remote Heating & Air Conditioning Systems

Heat Source Noise Tests  Magnetometer output at 50 cm  Glass panel heater: 1260mV peak to peak noise  Hydronic Baseboard heater: 392mV peak to peak noise

Geomagnetism Web Pages  USGS Geomagnetism Program :   Realtime web page: 

Heat Source Noise Tests