The Earthscope US transportable array 1 Hz surface pressure dataset

Abstract

A unique set of high temporal frequency surface atmospheric pressure observations have been collected and archived from a large-scale field campaign in the geosciences. The Earthscope U.S. Transportable Array (USArray TA) consists of approximately 400 deployable surface platforms. Stations were deployed in a Cartesian-like gridded fashion across a section of the contiguous United States for 1-2 year then retrieved and redeployed as new platforms further east. While primarily deployed for seismic measurements, platforms also recorded surface atmospheric pressure. These pressure data, collected and stored at a temporal frequency of 1 Hz, have been made available via the Research Data Archive at the National Center for Atmospheric Research (NCAR) for the time period 1 Jan 2010-31 Dec 2015. The 6 years of observations contain data from over 1000 locations ranging from the central to eastern United States, as well as some platforms in Alaska and the northwest United States. Data were organized as annual station files with supplemental metadata and quality control summary files. Several web-based interfaces are also available to rapidly explore the pressure archive. We describe the available dataset with several prominent atmospheric events shown as usage examples.

Cloud archiving and data mining of High-Resolution Rapid Refresh forecast model output

“…While a small number of geoscience data repositories exist (e.g., the National Center for Atmospheric Research), those entities have strict standards for accepting large data sets that are often difficult to meet. At the present time, geoscience data journals require that data sets be in such data repositories prior to publication such as that by Jacques et al (2016). Academic institutions will increasingly need to consider having facilities like the Pando archive to effectively meet those data stewardship requirements.…”

Relationships Between Gravity Waves Observed at Earth's Surface and in the Stratosphere Over the Central and Eastern United States

“…In total, over 1,000 sites were occupied in the continental U.S. Data from all stations are digitized at 1 Hz for the MEMS sensors and 40 Hz for the other sensors, then telemetered in near real time to the Array Network Facility (ANF) at UC San Diego for preliminary processing before being forwarded to the Data Management Center (DMC) in Seattle, WA, where they are archived and made available to the general public. The 1 Hz data are also archived in the Research Data Archive at the National Center for Atmospheric Research (Jacques et al, ). The installation of MEMS sensors began several months before the other sensors.…”

“…Pressure observations from a large network of barometers that were deployed within the continental U.S. as one component of the USArray Transportable Array (TA) are used in this study. The barometric component of the TA comprises 400 identical sensors that provide pressure data with high temporal resolution, deployed in a Cartesian‐like grid (Jacques et al, ; Tytell et al, ). The nearly uniform station distribution (~70 km interstation spacing) and high time sampling rate enable the use of array processing techniques to detect and characterize mesoscale pressure perturbations on a large scale.…”

Diurnal pressure variations in the Garhwal Himalaya: atmospheric fluctuations associated with the solid Earth tide

“…Eleven geophysical parameters are continuously monitored at high resolution at two separate locations at the MPGO in Ghuttu (Arora et al ., ; Kumar et al ., ; Khandelwal et al ., ). These observations are useful as they provide more detailed information on seismic activity that may be related to atmospheric phenomena such as pressure perturbations and gravity waves (Hedlin et al ., ; De Groot‐Hedlin et al ., ; Tytell et al ., ; Jacques et al ., ). In this study we report strong diurnal and semi‐diurnal variations in the atmospheric pressure and gravity data from the Himalaya region of India for the period 2007–2013.…”