Software
An official USGS software project is code reviewed and approved at the bureau-level for distribution.
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grsg_lekdb: Compiling and standardizing greater sage-grouse lek databases (version 1.3.0) grsg_lekdb: Compiling and standardizing greater sage-grouse lek databases (version 1.3.0)
Greater sage-grouse (Centrocercus urophasianus; hereafter referred to as sage-grouse) are landscape-scale sagebrush obligate species and an important gamebird and iconic species of the West (Hanser & Knick, 2011; Rowland et al., 2006). They occupy the sagebrush biome in western North America, extending east of the Sierra Nevada/Cascade Mountain ranges to the western regions of the Great...
CWIRE - Coda Wave Interferometry with Repeating Earthquakes (Version 1.0.0) CWIRE - Coda Wave Interferometry with Repeating Earthquakes (Version 1.0.0)
This code takes a catalog of earthquakes clustered by waveform similarity (e.g., REDPy) and processes the coda for each pair of earthquakes within each cluster/family for small, relative changes in seismic velocity. The causes of these velocity changes are a topic of active research. This code finds the optimal time stretching factor to either expand or condense one earthquake's coda...
Retrieving Band Values for a Single Pixel Through Time Retrieving Band Values for a Single Pixel Through Time
In July 2017, a sinkhole collapse significantly impacted the Lake Padgett Estates community in Land O'Lakes, Florida. Two homes were destroyed, and seven others were condemned. Mitigation efforts involved partially filling the sinkhole and creating an open-water pond surrounded by shrubs. This tutorial explores how the Normalized Difference Vegetation Index (NDVI) can be used to analyze...
Decoding the Quality Assessment Radiometric Saturation (QA_RADSAT) Band Decoding the Quality Assessment Radiometric Saturation (QA_RADSAT) Band
In this tutorial, we show the effects of radiometric saturation on the Surface Reflectance Bands for a single pixel from Mount Adams, Yakima, Washington. Mount Adams currently supports ten active glaciers, and has consistent snow cover. Thus, it is an excellent survey area to test radiometric saturation from reflective snow. Below, we retrieve and plot the values from all reflectance...
Querying the Landsat SpatioTemporal Asset Catalog (STAC) with PySTAC Querying the Landsat SpatioTemporal Asset Catalog (STAC) with PySTAC
The pystac_client is a Python library that allows you to interact with STAC APIs. It is useful for querying the Landsat STAC API, which provides programmatic access to Landsat satellite imagery collections. In this notebook, we will show users how to use pystac_client to search for products within the Landsat STAC API.
Scaling Landsat Collection 2 Level 2 Data Scaling Landsat Collection 2 Level 2 Data
This tutorial will demonstrate how to apply scale factors to Landsat Level-2 Surface Reflectance and Temperature datasets for Phoenix, Arizona. Phoenix is known for being one of the hottest cities in the United States, with surface temperatures reaching up to 80 degrees Celsius. In this tutorial, we will scale the NIR, RED, and LWIR (temperature band) bands of a single Landsat scene...