PASSCAL Experiments http://www.passcal.nmt.edu/rss/experiments en SEGMeNT http://www.passcal.nmt.edu/scheduledetails/exptnumb/201302 This experiment will acquire a family of geophysical, geochemical and geological observations in and around northern Lake Malawi to test fundamental hypotheses regarding continental rupture. Together, these data will allow us to characterize extensional deformation and magmatism at depth in the crust, mantle lithosphere and upper asthenosphere. These include seismic reflection data, onshore/offshore wide-angle seismic reflection/refraction data, passive seismic data (including body waves and surface waves), seismicity, long-period and wide-band MT data, continuous GPS data, InSAR data, and geochemical data. The IRIS PASSCAL component consists of 40 BB stations and 16 IP stations deployed for a period of 18 months. HWO http://www.passcal.nmt.edu/scheduledetails/exptnumb/201361 A series of rocket motor explosions to be conducted at EMRTC (Socorro, NM) for the purpose of improving understanding of ground and atmospheric coupling. The experiments will be conducted in four different seasons to study climate variability on atmospheric signals. PALSIE http://www.passcal.nmt.edu/scheduledetails/exptnumb/201435 We will perform an active source experiment to determine the thickness of the active layer in support of a continuous passive experiment that is monitoring the thickness in real time. Norway Microbarom http://www.passcal.nmt.edu/scheduledetails/exptnumb/201442 We would like to put out 3 mini infrasound arrays with 1 component each approximately 1 km spacing in Norway during the winter of 2014. RIS- SUMMER http://www.passcal.nmt.edu/scheduledetails/exptnumb/201422 We are requesting at total of 25 L22 3-component geophone packages to be deployed for one month to augment a 10 station broadband array centered near -78.99, 180.575E. This a joint request with the Wiens, Aster, Nyblade earth sciences Mantle Structure and Dynamics of the Ross Sea from a Passive Seismic Deployment on the Ross Ice Shelf project. Sample rate desired is 200 samples/s. The L22 stations are to be deployed for approximately 1 month duration by snowmobile from a base camp located at the array center during deployment of broadband stations, and recovered prior to departing the base camp. The array dimensions are approximate. The array will effectively be contained in an approximate circle with about a 15km radius Sweetwater http://www.passcal.nmt.edu/scheduledetails/exptnumb/201429 Collaborative experiments with NodalSeismic and Nanometrics to conduct a mix phase array of continuous recorded nodes with broadband sensors. HWO http://www.passcal.nmt.edu/scheduledetails/exptnumb/201361 A series of rocket motor explosions to be conducted at EMRTC (Socorro, NM) for the purpose of improving understanding of ground and atmospheric coupling. The experiments will be conducted in four different seasons to study climate variability on atmospheric signals. Mt St Helens http://www.passcal.nmt.edu/scheduledetails/exptnumb/201405 Seismic tomography experiment of the Mt St Helens volcanic system. Project consists of 2 orthogonal refraction profiles and 4 areal surveys to record 24 shots. Target goals are to illuminate the upper, middle, and lower crust of the Mt St Helens volcanic system. AAA (triple A) http://www.passcal.nmt.edu/scheduledetails/exptnumb/201502 Four mini seismic arrays will be installed in Unalaska Island. They will image a variety of seismic events from the subduction zone including tremor, low frequency earthquakes associated with slow earthquakes and regular fast earthquakes. They will also capture events from nearby volcanoes (Makushin and Akutan) allowing us to better understand the volcanic plumbing systems. The arrays are designed to simultaneously image both subduction and volcanic system. Owl Creek http://www.passcal.nmt.edu/scheduledetails/exptnumb/201432 We are imaging an active fault that has apparently offset tertiary sediments. If this is fault is indeed active it poses a serious hazard.