Danika F Wellington, Ph.D. (Former Employee)
Science and Products
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.3 Annual Land Cover and Land Cover Change Validation Tables (1985–2021) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.3 Annual Land Cover and Land Cover Change Validation Tables (1985–2021) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.3 annual land cover products (1985–2021) for the Conterminous United States was conducted with an independently collected reference dataset. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984–2021) to a reference sample of 26,971 Landsat...
LCMAP CONUS Geographic Assessment Data Tables v1.0 1985-2016 LCMAP CONUS Geographic Assessment Data Tables v1.0 1985-2016
This is a collection of data tables supporting the LCMAP CONUS Geographic Assessment v1.0. The data used to generate these tables come from the USGS LCMAP reference dataset and the map products released by LCMAP. Tables include annual land cover class composition and annual rate of land cover change metrics developed with a post-stratified estimator. Other tables including annual gross...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Tables (2000-2019) for Hawaii Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Tables (2000-2019) for Hawaii
A validation assessment of Land Cover Monitoring, Assessment, and Projection annual land cover products (2000-2019) for Hawaii was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (2000-2019) to a reference sample of 600 Landsat resolution (30m x 30m) pixels. The...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.2 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.2 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.2 annual land cover products (1985-2018) for the Conterminous United States was conducted with an independently collected reference dataset. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 26,971 Landsat...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.1 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.1 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.1 annual land cover products (1985-2019) for the Conterminous United States was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 24,971...
Land Change Monitoring, Assessment, and Projection (LCMAP) Version 1.0 Annual Land Cover and Land Cover Change Validation Tables Land Change Monitoring, Assessment, and Projection (LCMAP) Version 1.0 Annual Land Cover and Land Cover Change Validation Tables
A validation assessment of Land Cover Monitoring, Assessment, and Projection Version 1 annual land cover products (1985-2017) for the Conterminous United States was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 24,971 randomly...
Toward consistent change detection across irregular remote sensing time series observations Toward consistent change detection across irregular remote sensing time series observations
The use of remote sensing in time series analysis enables wall-to-wall monitoring of the land surface and is critical for assessing and understanding land cover and land use change and for understanding the Earth system as a whole. However, variability in remote sensing observation frequency through time and across space presents challenges for producing consistent change detection...
Authors
Heather Tollerud, Zhe Zhu, Kelcy Smith, Danika F. Wellington, Reza Hussain, Donna Viola
Development of the LCMAP annual land cover product across Hawai'i Development of the LCMAP annual land cover product across Hawai'i
Following the completion of land cover and change (LCC) products for the conterminous United States (CONUS), the U.S. Geological Survey's (USGS’s) Land Change Monitoring, Assessment, and Projection initiative has broadened the capability of characterizing continuous historical land change across the full Landsat records for Hawaiʻi at 30-meter resolution. One of the challenges of...
Authors
Congcong Li, George Xian, Danika F. Wellington, Kelcy Smith, Josephine Horton, Qiang Zhou
Tree regrowth duration map from LCMAP collection 1.0 land cover products in the conterminous United States, 1985–2017 Tree regrowth duration map from LCMAP collection 1.0 land cover products in the conterminous United States, 1985–2017
Forest covers about one-third of the land area of the conterminous United States (CONUS) and plays an important role in offsetting carbon emissions and supporting local economies. Growing interest in forests as relatively cost-effective nature-based climate solutions, particularly restoration and reforestation activities, has increased the demand for information on forest regrowth and...
Authors
Qiang Zhou, George Xian, Josephine Horton, Danika F. Wellington, Grant Domke, Roger Auch, Congcong Li, Zhe Zhu
Conterminous United States land-cover change (1985-2016): New insights from annual time series Conterminous United States land-cover change (1985-2016): New insights from annual time series
Sample-based estimates augmented by complete coverage land-cover maps were used to estimate area and describe patterns of annual land-cover change across the conterminous United States (CONUS) between 1985 and 2016. Most of the CONUS land cover remained stable in terms of net class change over this time, but a substantial gross change dynamic was captured by the annual and cumulative...
Authors
Roger Auch, Danika Wellington, Janis Taylor, Stephen Stehman, Heather Tollerud, Jesslyn Brown, Thomas Loveland, Bruce Pengra, Josephine Horton, Zhe Zhu, Alemayehu Midekisa, Kristi Sayler, George Xian, Christopher Barnes, Ryan Reker
Implementation of the CCDC algorithm to produce the LCMAP Collection 1.0 annual land surface change product Implementation of the CCDC algorithm to produce the LCMAP Collection 1.0 annual land surface change product
The increasing availability of high-quality remote sensing data and advanced technologies have spurred land cover mapping to characterize land change from local to global scales. However, most land change datasets either span multiple decades at a local scale or cover limited time over a larger geographic extent. Here, we present a new land cover and land surface change dataset created...
Authors
George Xian, Kelcy Smith, Danika F. Wellington, Josephine Horton, Qiang Zhou, Congcong Li, Roger Auch, Jesslyn Brown, Zhe Zhu, Ryan Reker
Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images
Images from the Mars Science Laboratory (MSL) mission of lacustrine sedimentary rocks of Vera Rubin ridge on “Mt. Sharp” in Gale crater, Mars, have shown stark color variations from red to purple to gray. These color differences crosscut stratigraphy and are likely due to diagenetic alteration of the sediments after deposition. However, the chemistry and timing of these fluid...
Authors
Briony Horgan, Jeffrey R. Johnson, Abigail Fraeman, Melissa Rice, Christina Seeger, James F. Bell, Kristen Bennett, Edward A. Cloutis, Lauren Edgar, Jens Frydenvang, John Grotzinger, Jonas L’Haridon, Samantha Jacob, Nicolas Mangold, Elizabeth Rampe, Frances Rivera-Hernandez, Vivian Sun, Lucy Thompson, Danika F. Wellington
Validation of the U.S. Geological Survey’s Land Change Monitoring, Assessment and Projection (LCMAP) collection 1.0 annual land cover products 1985–2017 Validation of the U.S. Geological Survey’s Land Change Monitoring, Assessment and Projection (LCMAP) collection 1.0 annual land cover products 1985–2017
The U.S. Geological Survey Land Change Monitoring, Assessment and Projection (USGS LCMAP) has released a suite of annual land cover and land cover change products for the conterminous United States (CONUS). The accuracy of these products was assessed using an independently collected land cover reference sample dataset produced by analysts interpreting Landsat data, high-resolution aerial...
Authors
Stephen Stehman, Bruce Pengra, Josephine Horton, Danika F. Wellington
Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign
This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted...
Authors
Abigail Fraeman, Lauren Edgar, Elizabeth Rampe, Lucy Thompson, Jens Frydenvang, Christopher Fedo, Jeff Catalano, William Dietrich, Travis Gabriel, John Grotzinger, Jonas L’Haridon, Nicholas Mangold, Vivian Sun, Christopher House, Alexander Bryk, Craig Hardgrove, Sean Czarnecki, Kathryn Stack, Richard V. Morris, Ray Arvidson, Steve Banham, Kristen Bennett, Jon Bridges, Christopher S. Edwards, Woodward Fischer, Valerie Fox, Sanjeev Gupta, Briony H. N. Horgan, Sammantha Jacob, Jeffrey Johnson, Sarah Johnson, David Rubin, Mark Salvatore, Susanne Schwenzer, Kirsten Siebach, Nathan Stein, Stuart Turner, Danika F. Wellington, Roger Wiens, Amy Williams, G.A. Davidson, Gregory Wong
Science and Products
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.3 Annual Land Cover and Land Cover Change Validation Tables (1985–2021) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.3 Annual Land Cover and Land Cover Change Validation Tables (1985–2021) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.3 annual land cover products (1985–2021) for the Conterminous United States was conducted with an independently collected reference dataset. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984–2021) to a reference sample of 26,971 Landsat...
LCMAP CONUS Geographic Assessment Data Tables v1.0 1985-2016 LCMAP CONUS Geographic Assessment Data Tables v1.0 1985-2016
This is a collection of data tables supporting the LCMAP CONUS Geographic Assessment v1.0. The data used to generate these tables come from the USGS LCMAP reference dataset and the map products released by LCMAP. Tables include annual land cover class composition and annual rate of land cover change metrics developed with a post-stratified estimator. Other tables including annual gross...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Tables (2000-2019) for Hawaii Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Tables (2000-2019) for Hawaii
A validation assessment of Land Cover Monitoring, Assessment, and Projection annual land cover products (2000-2019) for Hawaii was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (2000-2019) to a reference sample of 600 Landsat resolution (30m x 30m) pixels. The...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.2 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.2 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.2 annual land cover products (1985-2018) for the Conterminous United States was conducted with an independently collected reference dataset. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 26,971 Landsat...
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.1 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.1 Annual Land Cover and Land Cover Change Validation Tables (1985-2018) for the Conterminous United States
A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.1 annual land cover products (1985-2019) for the Conterminous United States was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 24,971...
Land Change Monitoring, Assessment, and Projection (LCMAP) Version 1.0 Annual Land Cover and Land Cover Change Validation Tables Land Change Monitoring, Assessment, and Projection (LCMAP) Version 1.0 Annual Land Cover and Land Cover Change Validation Tables
A validation assessment of Land Cover Monitoring, Assessment, and Projection Version 1 annual land cover products (1985-2017) for the Conterminous United States was conducted with an independently collected reference data set. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (1984-2018) to a reference sample of 24,971 randomly...
Toward consistent change detection across irregular remote sensing time series observations Toward consistent change detection across irregular remote sensing time series observations
The use of remote sensing in time series analysis enables wall-to-wall monitoring of the land surface and is critical for assessing and understanding land cover and land use change and for understanding the Earth system as a whole. However, variability in remote sensing observation frequency through time and across space presents challenges for producing consistent change detection...
Authors
Heather Tollerud, Zhe Zhu, Kelcy Smith, Danika F. Wellington, Reza Hussain, Donna Viola
Development of the LCMAP annual land cover product across Hawai'i Development of the LCMAP annual land cover product across Hawai'i
Following the completion of land cover and change (LCC) products for the conterminous United States (CONUS), the U.S. Geological Survey's (USGS’s) Land Change Monitoring, Assessment, and Projection initiative has broadened the capability of characterizing continuous historical land change across the full Landsat records for Hawaiʻi at 30-meter resolution. One of the challenges of...
Authors
Congcong Li, George Xian, Danika F. Wellington, Kelcy Smith, Josephine Horton, Qiang Zhou
Tree regrowth duration map from LCMAP collection 1.0 land cover products in the conterminous United States, 1985–2017 Tree regrowth duration map from LCMAP collection 1.0 land cover products in the conterminous United States, 1985–2017
Forest covers about one-third of the land area of the conterminous United States (CONUS) and plays an important role in offsetting carbon emissions and supporting local economies. Growing interest in forests as relatively cost-effective nature-based climate solutions, particularly restoration and reforestation activities, has increased the demand for information on forest regrowth and...
Authors
Qiang Zhou, George Xian, Josephine Horton, Danika F. Wellington, Grant Domke, Roger Auch, Congcong Li, Zhe Zhu
Conterminous United States land-cover change (1985-2016): New insights from annual time series Conterminous United States land-cover change (1985-2016): New insights from annual time series
Sample-based estimates augmented by complete coverage land-cover maps were used to estimate area and describe patterns of annual land-cover change across the conterminous United States (CONUS) between 1985 and 2016. Most of the CONUS land cover remained stable in terms of net class change over this time, but a substantial gross change dynamic was captured by the annual and cumulative...
Authors
Roger Auch, Danika Wellington, Janis Taylor, Stephen Stehman, Heather Tollerud, Jesslyn Brown, Thomas Loveland, Bruce Pengra, Josephine Horton, Zhe Zhu, Alemayehu Midekisa, Kristi Sayler, George Xian, Christopher Barnes, Ryan Reker
Implementation of the CCDC algorithm to produce the LCMAP Collection 1.0 annual land surface change product Implementation of the CCDC algorithm to produce the LCMAP Collection 1.0 annual land surface change product
The increasing availability of high-quality remote sensing data and advanced technologies have spurred land cover mapping to characterize land change from local to global scales. However, most land change datasets either span multiple decades at a local scale or cover limited time over a larger geographic extent. Here, we present a new land cover and land surface change dataset created...
Authors
George Xian, Kelcy Smith, Danika F. Wellington, Josephine Horton, Qiang Zhou, Congcong Li, Roger Auch, Jesslyn Brown, Zhe Zhu, Ryan Reker
Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images Diagenesis of Vera Rubin ridge, Gale crater, Mars from Mastcam multispectral images
Images from the Mars Science Laboratory (MSL) mission of lacustrine sedimentary rocks of Vera Rubin ridge on “Mt. Sharp” in Gale crater, Mars, have shown stark color variations from red to purple to gray. These color differences crosscut stratigraphy and are likely due to diagenetic alteration of the sediments after deposition. However, the chemistry and timing of these fluid...
Authors
Briony Horgan, Jeffrey R. Johnson, Abigail Fraeman, Melissa Rice, Christina Seeger, James F. Bell, Kristen Bennett, Edward A. Cloutis, Lauren Edgar, Jens Frydenvang, John Grotzinger, Jonas L’Haridon, Samantha Jacob, Nicolas Mangold, Elizabeth Rampe, Frances Rivera-Hernandez, Vivian Sun, Lucy Thompson, Danika F. Wellington
Validation of the U.S. Geological Survey’s Land Change Monitoring, Assessment and Projection (LCMAP) collection 1.0 annual land cover products 1985–2017 Validation of the U.S. Geological Survey’s Land Change Monitoring, Assessment and Projection (LCMAP) collection 1.0 annual land cover products 1985–2017
The U.S. Geological Survey Land Change Monitoring, Assessment and Projection (USGS LCMAP) has released a suite of annual land cover and land cover change products for the conterminous United States (CONUS). The accuracy of these products was assessed using an independently collected land cover reference sample dataset produced by analysts interpreting Landsat data, high-resolution aerial...
Authors
Stephen Stehman, Bruce Pengra, Josephine Horton, Danika F. Wellington
Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign Evidence for a diagenetic origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and synthesis of Curiosity's exploration campaign
This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite spectral signature. Curiosity conducted...
Authors
Abigail Fraeman, Lauren Edgar, Elizabeth Rampe, Lucy Thompson, Jens Frydenvang, Christopher Fedo, Jeff Catalano, William Dietrich, Travis Gabriel, John Grotzinger, Jonas L’Haridon, Nicholas Mangold, Vivian Sun, Christopher House, Alexander Bryk, Craig Hardgrove, Sean Czarnecki, Kathryn Stack, Richard V. Morris, Ray Arvidson, Steve Banham, Kristen Bennett, Jon Bridges, Christopher S. Edwards, Woodward Fischer, Valerie Fox, Sanjeev Gupta, Briony H. N. Horgan, Sammantha Jacob, Jeffrey Johnson, Sarah Johnson, David Rubin, Mark Salvatore, Susanne Schwenzer, Kirsten Siebach, Nathan Stein, Stuart Turner, Danika F. Wellington, Roger Wiens, Amy Williams, G.A. Davidson, Gregory Wong