Images

Diagram of the workflow used to collect and process audio for the presence of calling bullfrogs. 

Collect audio. Download, store, and prepare audio. Pre-process audio - Resample audio, Split raw recordings into 2.5 s clips, Convert waveforms to spectrogram images, Mel transform spectrograms. Build model. Train model. Inference.

Hovenweep Supercomputer at EROS Data center. Sign next to 5 computer racks. Sign reads "hovenweep" and has additional details that are not legible. 

HPC machine

McKinley is the USGS's flagship supercomputer installed and housed at the EROS Data Center in Sioux Falls, SD. Estimated peak computational performance is expected to be ~660 Tflop/s. 

Learn more here: USGS McKinley Supercomputer

close up image of an American Bullfrog (Lithobates catebeianus), taken by USGS employee Brome McCreary in 2004.