Search Results - "HOFFMAN, Ross N."

FUTURE OBSERVING SYSTEM SIMULATION EXPERIMENTS by Hoffman, Ross N., Atlas, Robert

“…As operational forecast and data assimilation (DA) systems evolve, observing system simulation experiment (OSSE) systems must evolve in parallel. Expected…”
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A CROSS-CALIBRATED, MULTIPLATFORM OCEAN SURFACE WIND VELOCITY PRODUCT FOR METEOROLOGICAL AND OCEANOGRAPHIC APPLICATIONS by Atlas, Robert, Hoffman, Ross N., Ardizzone, Joseph, Leidner, S. Mark, Jusem, Juan Carlos, Smith, Deborah K., Gombos, Daniel

“…The ocean surface wind mediates exchanges between the ocean and the atmosphere. These air–sea exchange processes are critical for understanding and predicting…”
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Outlook for Exploiting Artificial Intelligence in the Earth and Environmental Sciences by Boukabara, Sid-Ahmed, Krasnopolsky, Vladimir, Penny, Stephen G., Stewart, Jebb Q., McGovern, Amy, Hall, David, Ten Hoeve, John E., Hickey, Jason, Huang, Hung-Lung Allen, Williams, John K., Ide, Kayo, Tissot, Philippe, Haupt, Sue Ellen, Casey, Kenneth S., Oza, Nikunj, Geer, Alan J., Maddy, Eric S., Hoffman, Ross N.

“…Promising new opportunities to apply artificial intelligence (AI) to the Earth and environmental sciences are identified, informed by an overview of current…”
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Value-added Impact of Geostationary Hyperspectral Infrared Sounders on Local Severe Storm Forecasts—via a Quick Regional OSSE by Li, Zhenglong, Li, Jun, Wang, Pei, Lim, Agnes, Li, Jinlong, Schmit, Timothy J., Atlas, Robert, Boukabara, Sid-Ahmed, Hoffman, Ross N.

“…Accurate atmospheric temperature and moisture information with high temporal/spatial resolutions are two of the key parameters needed in regional numerical…”
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A preliminary assessment of the value and impact of multiple configurations of constellations of EON-MW, a proposed 12U microwave sounder CubeSat for global NWP by Zhou, Yan, Shahroudi, Narges, Zhu, Tong, Iturbide-Sanchez, Flavio, Maddy, Eric S., Boukabara, Sid-Ahmed, Ide, Kayo, Hoffman, Ross N.

“…Observing system assessments were made for the Earth Observing Nanosatellite-Microwave (EON-MW), a 12U CubeSat analog of the Advanced Technology Microwave…”
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The Ensemble Mars Atmosphere Reanalysis System (EMARS) Version 1.0 by Greybush, Steven J., Kalnay, Eugenia, Wilson, R. John, Hoffman, Ross N., Nehrkorn, Thomas, Leidner, Mark, Eluszkiewicz, Janusz, Gillespie, Hartzel E., Wespetal, Matthew, Zhao, Yongjing, Hoffman, Matthew, Dudas, Patrick, McConnochie, Timothy, Kleinböhl, Armin, Kass, David, McCleese, Daniel, Miyoshi, Takemasa

“…The Ensemble Mars Atmosphere Reanalysis System (EMARS) dataset version 1.0 contains hourly gridded atmospheric variables for the planet Mars, spanning Mars…”
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Comparative inverse analysis of satellite (MOPITT) and aircraft (TRACE-P) observations to estimate Asian sources of carbon monoxide by Heald, Colette L., Jacob, Daniel J., Jones, Dylan B. A., Palmer, Paul I., Logan, Jennifer A., Streets, D. G., Sachse, Glen W., Gille, John C., Hoffman, Ross N., Nehrkorn, Thomas

“…We use an inverse model analysis to compare the top‐down constraints on Asian sources of carbon monoxide (CO) in spring 2001 from (1) daily MOPITT satellite…”
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Impact of assimilation window length on diurnal features in a Mars atmospheric analysis by Zhao, Yongjing, Greybush, Steven J., Wilson, R. John, Hoffman, Ross N., Kalnay, Eugenia

“…Effective simulation of diurnal variability is an important aspect of many geophysical data assimilation systems. For the Martian atmosphere, thermal tides are…”
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The alternative of CubeSat-based advanced infrared and microwave sounders for high impact weather forecasting by LI, Zhenglong, LI, Jun, SCHMIT, Timothy J., WANG, Pei, LIM, Agnes, LI, Jinlong, NAGLE, Fredrick W., BAI, Wenguang, OTKIN, Jason A., ATLAS, Robert, HOFFMAN, Ross N., BOUKABARA, Sid-Ahmed, ZHU, Tong, BLACKWELL, William J., PAGANO, Thomas S.

“…The advanced infrared (IR) and microwave (MW) sounding systems have been providing atmospheric sounding information critical for nowcasting and improving…”
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Optimization and impact assessment of Aeolus HLOS wind assimilation in NOAA's global forecast system by Garrett, Kevin, Liu, Hui, Ide, Kayo, Hoffman, Ross N., Lukens, Katherine E.

“…The European Space Agency Aeolus mission launched the first‐of‐its‐kind space‐borne Doppler wind lidar in August 2018. The Aeolus Level‐2B (L2B) Horizontal…”
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On the use of consistent bias corrections to enhance the impact of Aeolus Level‐2B Rayleigh winds on National Oceanic and Atmospheric Administration global forecast skill by Liu, Hui, Garrett, Kevin, Ide, Kayo, Hoffman, Ross N.

“…The operational Aeolus Level‐2B (L2B) horizontal line‐of‐sight (HLOS) retrieved Rayleigh winds, produced by the European Space Agency (ESA), utilize European…”
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Error Propagation of Radar Rainfall Nowcasting Fields through a Fully Distributed Flood Forecasting Model by Vivoni, Enrique R., Entekhabi, Dara, Hoffman, Ross N.

“…This study presents a first attempt to address the propagation of radar rainfall nowcasting errors to flood forecasts in the context of distributed…”
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A collocation study of atmospheric motion vectors (AMVs) compared to Aeolus wind profiles with a feature track correction (FTC) observation operator by Hoffman, Ross N., Lukens, Katherine E., Ide, Kayo, Garrett, Kevin

“…A method to apply an empirical feature track correction (FTC) in a new observation operator for atmospheric motion vectors (AMVs) is proposed. The FTC AMV…”
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A Forward Model for Data Assimilation of GNSS Ocean Reflectometry Delay-Doppler Maps by Huang, Feixiong, Garrison, James L., Leidner, S. Mark, Annane, Bachir, Hoffman, Ross N., Grieco, Giuseppe, Stoffelen, Ad

“…Delay-Doppler maps (DDMs) are generally the lowest level of calibrated observables produced from global navigation satellite system reflectometry (GNSS-R). A…”
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An Estimate of Increases in Storm Surge Risk to Property from Sea Level Rise in the First Half of the Twenty-First Century by Hoffman, Ross N., Dailey, Peter, Hopsch, Susanna, Ponte, Rui M., Quinn, Katherine, Hill, Emma M., Zachry, Brian

“…Sea level is rising as the World Ocean warms and ice caps and glaciers melt. Published estimates based on data from satellite altimeters, beginning in late…”
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LEVERAGING MODERN ARTIFICIAL INTELLIGENCE FOR REMOTE SENSING AND NWP: Benefits and Challenges by Boukabara, Sid-Ahmed, Krasnopolsky, Vladimir, Stewart, Jebb Q., Maddy, Eric S., Shahroudi, Narges, Hoffman, Ross N.

“…Artificial intelligence (AI) techniques have had significant recent successes in multiple fields. These fields and the fields of satellite remote sensing and…”
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Assimilation of GNSS reflectometry delay‐Doppler maps with a two‐dimensional variational analysis of global ocean surface winds by Huang, Feixiong, Garrison, James L., Mark Leidner, S., Grieco, Giuseppe, Stoffelen, Ad, Annane, Bachir, Hoffman, Ross N.

“…Direct remote‐sensing observations (e.g., radar backscatter, radiometer brightness temperature, or radio occultation bending angle) are often more effective…”
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Ensemble Kalman filter data assimilation of Thermal Emission Spectrometer temperature retrievals into a Mars GCM by Greybush, Steven J., Wilson, R. John, Hoffman, Ross N., Hoffman, Matthew J., Miyoshi, Takemasa, Ide, Kayo, McConnochie, Timothy, Kalnay, Eugenia

“…Thermal Emission Spectrometer (TES) retrieved temperature profiles are assimilated into the GFDL Mars Global Climate Model (MGCM) using the Local Ensemble…”
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Exploiting Aeolus level-2b winds to better characterize atmospheric motion vector bias and uncertainty by Lukens, Katherine E, Ide, Kayo, Garrett, Kevin, Liu, Hui, Santek, David, Hoover, Brett, Hoffman, Ross N

“…The need for highly accurate atmospheric wind observations is a high priority in the science community, particularly for numerical weather prediction (NWP). To…”
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A statistically optimal analysis of systematic differences between Aeolus horizontal line-of-sight winds and NOAA's Global Forecast System by Liu, Hui, Garrett, Kevin, Ide, Kayo, Hoffman, Ross N, Lukens, Katherine E

“…The European Space Agency Aeolus mission launched a first-of-its-kind spaceborne Doppler wind lidar in August 2018. To optimize the assimilation of the Aeolus…”
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