A5052285176- Planetary Science and Exploration
- Astro and Planetary Science
- Atmospheric Ozone and Climate
- Ocean Waves and Remote Sensing
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Arctic and Antarctic ice dynamics
- Atmospheric chemistry and aerosols
- Space Exploration and Technology
- Coastal and Marine Dynamics
- Space Science and Extraterrestrial Life
- Space exploration and regulation
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Marine and environmental studies
- Ionosphere and magnetosphere dynamics
- Climate variability and models
- Spaceflight effects on biology
- Space Satellite Systems and Control
- Laser-induced spectroscopy and plasma
- Geological Studies and Exploration
- Climate change and permafrost
- Astronomical Observations and Instrumentation
- Maritime Navigation and Safety
- Geochemistry and Geologic Mapping
United Arab Emirates University
2019-2024
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2015-2018
University of Bremen
2014-2016
Abstract A large collaborative program has studied the coupled air‐ice‐ocean‐wave processes occurring in Arctic during autumn ice advance. The included a field campaign western of 2015, with situ data collection and both aerial satellite remote sensing. Many analyses have focused on using improving forecast models. Summarizing synthesizing results from series separate papers, overall view is an shifting to more seasonal system. dramatic increase open water extent duration means that surface...
Abstract. Vertical profiles of the rate linear change (trend) in altitude range 15–50 km are determined from decadal O3 time series obtained SCIAMACHY1/ENVISAT2 measurements limb-viewing geometry. The trends calculated by using a multivariate regression. Seasonal variations, quasi-biennial oscillation, signatures solar cycle and El Niño–Southern Oscillation accounted for trend calculation is August 2002–April 2012. A focus analysis zonal bands 20° N–20° S (tropics), 60–50° N, 50–60°...
Abstract. An analysis of the tropospheric ozone (O3) columns (TOCs) derived from SCIAMACHY limb-nadir-matching (LNM) observations during period 2003–2011, focusing on global variations in TOC, is described. The changes are using a multivariate linear regression model. TOC shows −0.2 ± 0.4, 0.3 0.1 0.5 and 0.2 % yr−1, which not statistically significant at 2σ level latitude bands 30–50° N, 20° S–0, 0–20° N 50–30° S, respectively. Tropospheric O3 increases over some regions South Asia (1–3...
Abstract The Emirates eXploration Imager (EXI) onboard the Mars Mission (EMM) is a dual‐telescope camera system capable of observing various Martian atmospheric phenomena. spacecraft's unique orbit allows EXI to capture full disk views at time step hours or less, with resolution ∼2–4 km per pixel (in nadir‐looking direction) in both visible and UV channels. Leveraging these unparalleled observations, we conducted comprehensive analysis dust storms for year (MY) 36, alignment EMM's scientific...
Light atmospheric species such as helium (He) serve tracers of global circulation in Mars' upper atmosphere (>100 km). Due to its low mass and large scale-height, He exhibits unique behaviour, including the formation bulges, their spatiotemporal variations, response Global Dust Storm (GDS). The significant variability observed during nominal dust conditions (i.e., absence a GDS) highlights helium's sensitivity across different locations seasons on Mars. In recent years, seminal studies...
Abstract The MarsWRF model is set up with fully interactive dust at 5° × and 2° 2 resolution. latter allows for a better representation of topography other surface properties. An infinite reservoir assumed both resolutions. For 5°, lifting by wind stress takes place over broad areas, occurring in about 20% the model's grid cells. 2°, it more spatially restricted, less than 5% cells, somewhat reminiscent corridors Acidalia‐Chryse, Utopia‐Isidis, Arcadia‐West Tharsis. onset times major...
Bathymetry, the topography of sea floor, is in high demand due to increase offshore constructions like wind parks. It also an important dataset for climate change modelling, when level rises and changes circulation currents are be simulated. The retrieval accurate bathymetry data a cost-intensive task usually requiring survey vessel charting respective area. However, can retrieved remotely using from Earth observation satellites. main point this study development processor that allows...
Abstract. Chemistry–climate models predict an acceleration of the upwelling branch Brewer–Dobson circulation as a consequence increasing global surface temperatures, resulting from elevated levels atmospheric greenhouse gases. The observed decrease ozone in tropical lower stratosphere during last decades 20th century is consistent with anticipated upwelling. However, more recent satellite observations reveal that this has unexpectedly stopped first decade 21st century, challenging implicit...
Abstract. The SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) aboard the Envisat satellite provided measurements from August 2002 until April 2012. SCIAMACHY measured scattered or direct sunlight using different observation geometries. limb viewing geometry allows retrieval of water vapour at about 10–25 km height near-infrared spectral range (1353–1410 nm). These data cover upper troposphere and lower stratosphere (UTLS), a region in atmosphere which is...
Abstract In this study, three simulations by the Mars Weather Research and Forecasting Model are compared: two 10 Martian year (MY) 2° × with (i) fully radiatively active dust (ii) a prescribed scenario, (iii) 1 MY 0.5° simulation as in (ii). From comparing (ii), we found that impact of dust‐radiation feedback is individually different for any region. The most striking evidence major lifting activities to south Chryse Planitia (S‐CP) seen but not By contrast, deposition on southern slopes...
Abstract Martian dust plays a crucial role in the meteorology and climate of atmosphere. It heats atmosphere, enhances atmospheric general circulation, affects spacecraft instruments operations. Compliant with that, studying is also essential for future human exploration. In this work, we present method deep-learning-based detection areal extent storms Mars satellite imagery. We use mask regional convolutional neural network, consisting regional-proposal network network. apply to daily...
Abstract We explore a sequence of 13 unique high‐cadence images dust storm, from the Emirates Mars Mission (EMM). The eXploration Imager camera took these in less than 8 hr on 18 December 2022 (Martian Year 36, solar longitude 356°). Most are separated by time difference half an hour. region interest extends Lyot crater to east. During morning, EMM show lee waves (atmospheric gravity waves). In late rapidly change into clearly distinct storm texture/convective features. track evolution both...
Abstract. Vertical profiles of the rate linear change (trend) in altitude range 15–50 km are determined from decadal O3 time series obtained SCIAMACHY/ENVISAT measurements limb viewing geometry. The trends calculated by using a multivariate regression zonal bands 5° S–5° N (tropics), 50–60° N, and S (mid- to high latitudes). Seasonal terms, quasi-biennial oscillation, solar cycle variations accounted for regression. In tropics, positive between 15 30 negative 35 identified. Moderately found...
Abstract The Emirates Mars Mission (EMM) science phase began in Martian Year 36, solar longitude 49, which is outside of the classical dust storm season. EMM observed a distinct cloud at northern mid‐to‐high latitudes on 10 September 2021 (Martian 97). an arc‐shaped storm, typically polar cap edge. This type non‐season well‐known phenomenon, but this particular case interesting because has frontal structure. A large atmospheric front unusual location and Moreover, EMM's unique observational...
The accuracy of the high resolution coastal wave forecast model CWAM is validated on basis sea state information from satellite images TerraSAR-X (TS-X). At same time, performance retrieval parameters demonstrated. Employing 2-dimensional spatial Fourier Transformation, image spectra are derived TS-X and locally varying patterns peak wavelength provided using state-of-the-art retrieval. Subsequently, comparisons performed between a typical set scenes acquired in December 2013 over German...
Abstract. Remote sensing Synthetic Aperture Radar (SAR) data from TerraSAR-X and Tandem-X (TS-X TD-X) satellites have been used for validation verification of newly developed coastal forecast models in the German Bight North Sea. The empirical XWAVE algorithm estimation significant wave height has adopted application implemented NRT services. All available TS-X images collocated with buoy measurements (6 buoys) since 2013 were processed analysed (total 46 scenes/passages 184 StripMap...
This paper performs a study on sea state and wind fields at the ice edge boundary by utilizing information from different sources including synthetic aperture radar (SAR) satellite imagery, weather analyses European Centre for Medium-Range Weather Forecasts, shipborne in-situ measurements, AMSR2 charts. The basis is Stripmap scene TerraSAR-X acquired October 18, 2015, ~18 UTC, in support of cruise research vessel R/V Sikuliaq Beaufort/Chukchi Sea. covers an area with length more than 100 km...
The ExoMars Trace Gas Orbiter (TGO), Emirates Mars Mission (EMM), and possible future stationary satellite(s) will provide innovative data products on the optical depth of dust water ice clouds in Martian atmosphere with a temporal resolution hours. science phase TGO has begun April 2018, EMM operation is scheduled to start 2021. In this work, relationship between TGO, EMM, precursor missions/instruments analyzed based obtained products. This followed by discussing foreseen innovation from...
Written by: Claire E. Newman (Aeolis Res.) Tanguy Bertrand (NASA Ames) Joseph Battalio (Yale Univ.) Mackenzie Day (UCLA) Manuel de la Torre Juarez (JPL) Meredith K. Elrod GSFC) Francesca Esposito (INAF-OAC) Lori Fenton (SETI Inst.) Claus Gebhardt (UAEU) Steven J. Greybush (Penn. State) Scott D. Guzewich Henrik Kahanpaa (FMI) Melinda Kahre Ozgur Karatekin (Royal Obs. Belg.) Brian Jackson (Boise State Mathieu Lapotre (Stanford Christopher Lee Stephen R. Lewis (Open Ralph Lorenz (APL) German...
Abstract. An analysis of the tropospheric ozone (O3) columns (TOCs) derived from SCIAMACHY limb-nadir-matching (LNM) observations during 2003–2011, focusing on zonal and global variations in TOC is described. The changes are using a multivariate linear regression model. shows change −0.2 ± 0.4 % yr−1, 0.3 0.1 0.5 yr−1 0.2 which not statistically significant at 2 σ level latitude bands 30–50° N, 20° S–0, 0–20° N 50–30° S, respectively. Tropospheric O3 increases over some regions South Asia...
Earth and Space Science Open Archive This work has been accepted for publication in Other. Version of RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing the latest version by default [v1]Toward More Realistic Simulation Prediction Dust Storms on MarsAuthors Claire E Newman iD Tanguy Bertrand Joseph Battalio Mackenzie Day Manuel de la Torre Juarez Meredith K Elrod Francesca...
Abstract. Chemistry–climate models predict an acceleration of the upwelling branch Brewer–Dobson circulation as a consequence increasing global surface temperatures, resulting from elevated levels atmospheric greenhouse gases. The observed decrease ozone in tropical lower stratosphere during last decades 20th century is consistent with anticipated upwelling. However, more recent satellite observations reveal that this has unexpectedly stopped first decade 21st century, challenging implicit...