Reports
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 82,000 reports authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Report on the workshop ‘Next Steps in Developing Nature Futures’ Report on the workshop ‘Next Steps in Developing Nature Futures’
The workshop ‘New Narratives for Nature: operationalizing the IPBES Nature Futures Scenarios’ was organised by the IPBES task force on scenarios and models and hosted by the Institute for Global Environmental Strategies (IGES), with support from the research team on “Predicting and Assessing Natural Capital and Ecosystem Services through an Integrated Social-Ecological Systems Approach...
Authors
Machteld Schoolenberg, Sana Okayasu, Rob Alkemade, Amanda Krijgsman, Ana Paula Dutra de Aguiar, Shizuka Hashimoto, Carolyn J. Lundquist, Laura Pereira, Garry Peterson, Dolors Armenteras, William W. L. Cheung, Mariteuw Chimere Diaw, America Paz Duran, Maria Gasalla, Ghassen Halouani, Paula Harrisson, Sylvia Karlsson-Vinkhuyzen, HyeJin Kim, Jan J. Kuiper, Brian W. Miller, Yasuo Takahashi, Ramon Pichs
A summary of water-quality monitoring in San Francisco Bay in water year 2017 A summary of water-quality monitoring in San Francisco Bay in water year 2017
This report summarizes the activities of the U.S. Geological Survey (USGS) San Francisco Bay Water-Quality Monitoring and Sediment Transport Project during water year 2017, including an explanation of methods employed, stations operated, and a graphical summary of data for the period of record for stations operational in water year 2017. In cooperation with partner agencies, the USGS...
Authors
Daniel N. Livsey, Maureen A. Downing-Kunz
Elevation-derived hydrography acquisition specifications Elevation-derived hydrography acquisition specifications
Hydrographic features derived from U.S. Geological Survey (USGS) 3D Elevation Program data, and collected for use by the USGS, must meet the specifications described in this document. The specifications described herein pertain to the final product delivered to the USGS, not to methods used to derive the hydrographic features. The specifications describe the collection area, spatial...
Authors
Silvia Terziotti, Christy-Ann Archuleta
Elevation-derived hydrography—Representation, extraction, attribution, and delineation rules Elevation-derived hydrography—Representation, extraction, attribution, and delineation rules
With the increasing availability of 3D Elevation Program (3DEP) quality high resolution elevation data across the United States and the pressing need for better integrated elevation and hydrography data, the U.S. Geological Survey is developing guidance to improve the horizontal and vertical alignment of these datasets. The U.S. Geological Survey is providing the Elevation-Derived...
Authors
Christy-Ann Archuleta, Silvia Terziotti
EERI earthquake reconnaissance report: 2019 Ridgecrest earthquake sequence EERI earthquake reconnaissance report: 2019 Ridgecrest earthquake sequence
The Ridgecrest Earthquake Sequence began the morning of 4 July 2019 with an M6.4 earthquake at 10:33 a.m., closely following several small foreshocks. The epicenter of this event was roughly 11 miles (18 km) east-northeast of Ridgecrest (Figure 1) within the Naval Air Weapons Station China Lake (NAWS-CL). Seismic and geologic data established that the M6.4 earthquake occurred primarily...
Authors
EERI Learning from Earthquakes Program, Katherine M. Scharer
Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River Fall Chinook Salmon ESU: January 2019 - December 2019 Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River Fall Chinook Salmon ESU: January 2019 - December 2019
The portion of the Snake River fall Chinook salmon Oncorhynchus tshawytscha evolutionary significant unit (ESU) that spawns upstream of Lower Granite Dam transitioned from low to high abundance during 19922019 in association with U.S. Endangered Species Act recovery efforts and other federally mandated actions. This annual report focuses on (1) numeric and habitat use responses by...
Community for data integration 2018 funded project report Community for data integration 2018 funded project report
The U.S. Geological Survey Community for Data Integration annually funds small projects focusing on data integration for interdisciplinary research, innovative data management, and demonstration of new technologies. This report provides a summary of the 10 projects funded in fiscal year 2018, outlining their goals, activities, and accomplishments.
Authors
Leslie Hsu, Caitlin M. Andrews, John B. Bradford, Daniel D. Buscombe, Katherine J. Chase, Wesley M. Daniel, Jeanne M. Jones, Pam Fuller, Benjamin B. Mirus, Matthew E. Neilson, Hans W. Vraga, Jessica J. Walker, Dennis H. Walworth, Jonathan A. Warrick, Jake Weltzin, Daniel J. Wieferich, Nathan J. Wood
U-Pb geochronology of igneous and detrital zircon samples from the Tok River area, eastern Alaska Range, and Talkeetna Mountains, Alaska U-Pb geochronology of igneous and detrital zircon samples from the Tok River area, eastern Alaska Range, and Talkeetna Mountains, Alaska
This Alaska Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb zircon geochronology results from selected igneous, meta-igneous, and metasedimentary rocks collected during the Tok River and Wrangellia geologic mapping projects in the eastern Alaska Range and the northwestern Talkeetna Mountains, Alaska. The purpose of these analyses is to better constrain the...
Authors
Christopher S. Holm-Denoma, Karri R. Sicard, Evan Twelker
Planetary science decadal survey planetary mission concept study report: Ceres: Exploration of Ceres’ habitability Planetary science decadal survey planetary mission concept study report: Ceres: Exploration of Ceres’ habitability
Dwarf planet Ceres is a compelling target as an evolved ocean world with, at least, regional brine reservoirs and potentially ongoing geological activity. As the most water-rich body in the inner solar system (in relative abundance), it is a representative of the population of planetesimals that brought volatiles and organics to the inner solar system. Situated in the Main Belt of...
Authors
J. C. Castillo-Rogez, John Brody, Michael T. Bland, Debra Buczkowski, Robert Grimm, A. Hendrix, Kelly Miller, Thomas Prettyman, Lynnae Quick, Carol Raymond, Jennifer Scully, Michael M. Sori, Yasuhito Sekine, David Williams, Michael Zolensky
2023 Coastal master plan: Model improvement plan, ICM-wetlands, vegetation, and soil 2023 Coastal master plan: Model improvement plan, ICM-wetlands, vegetation, and soil
As part of the model improvement effort for the 2023 Coastal Master Plan, the wetland processes captured by the morphology and vegetation models used during previous master plans were reevaluated to assess how Integrated Compartment Model (ICM) subroutines could be improved. This process considered technical reviews, comments, and suggested improvements provided by model developers...
Authors
Melissa M. Baustian, Denise Reed, Jenneke Visser, Scott M. Duke-Sylvester, Gregg Snedden, Hongqing Wang, Kristin DeMarco, Madeline R. Foster-Martinez, Leigh Anne Sharp, Tommy E. McGinnis, Elizabeth Jarrell
Quality Assurance Project Plan: Status and trends monitoring of small streams in the Puget Lowlands ecoregion for Stormwater Action Monitoring (SAM) Quality Assurance Project Plan: Status and trends monitoring of small streams in the Puget Lowlands ecoregion for Stormwater Action Monitoring (SAM)
This Quality Assurance Project Plan (QAPP) details a long term status and trends monitoring study for small streams in the Puget Lowland as part of Stormwater Action Monitoring (SAM) program. SAM is the regional stormwater monitoring program funded by the Phase I Municipal Stormwater permit and the Western Washington Phase II Municipal Stormwater permit permittees. This study of small...
Authors
Keunyea Song, Rich W. Sheibley
Procedure for calculating estimated ultimate recoveries of wells in the Wolfcamp shale of the Midland Basin, Permian Basin Province, Texas Procedure for calculating estimated ultimate recoveries of wells in the Wolfcamp shale of the Midland Basin, Permian Basin Province, Texas
In 2016, the U.S. Geological Survey published an assessment of technically recoverable continuous oil and gas resources of the Wolfcamp shale in the Midland Basin, Permian Basin Province, Texas. Estimated ultimate recoveries (EURs) were calculated with production data from IHS MarkitTM using DeclinePlus software in the Harmony interface. These EURs were a major component of the...
Authors
Heidi M. Leathers-Miller