http://publicationslist.org/data/thomas.oommen/atom.xml Thomas Oommenhttp://publicationslist.org/thomas.oommen$basepathfavicon.icoRecent additions to Thomas Oommen's PublicationsList.org pagehttp://publicationslist.org/publications.png2017-09-01T16:06:20Z http://publicationslist.org/thomas.oommen/refid70 2017-08-01T18:56:24Z

Schaefer L.N., Wang T., !Escobar-Wolf R., Oommen T., Zhong L., Kim J., Lundgreen P. R., Waite G. P. (2017) <i>Geophysical Research Letters</i> 44: <br/>

http://publicationslist.org/thomas.oommen/refid69 2017-08-01T18:54:32Z

Zwissler B., Oommen T., Vitton S., and Seagren E. (2017) <i>Environmental and Engineering Geology</i> : 1078-7275<br/>

http://publicationslist.org/thomas.oommen/refid78 2017-09-01T16:06:14Z

Ren N. Keyport, Thomas Oommen, Tapas R. Martha, K.S. Sajinkumar, John S. Gierke (2017) <i>International Journal of Applied Earth Observations and Geoinformation</i> : <br/>

http://publicationslist.org/thomas.oommen/refid71 2017-08-01T18:57:55Z

Escobar-Wolf R., Oommen T., Brooks C.N., Dobson R., and Ahlborn T., (2017) <i>Research in Nondestructive Evaluation</i> : <br/>

http://publicationslist.org/thomas.oommen/refid73 2017-08-01T19:00:41Z

Buikema N.D., *Zwissler B., Seagren E., Oommen T., and Vitton S. (2017) <i>Environmental Geotechnics.</i> : <br/>

http://publicationslist.org/thomas.oommen/refid77 2017-08-29T13:54:15Z

Renee C. Oats, Rudiger Escobar-Wolf, Thomas Oommen (2017) <i>Infrastructures </i> 2: 10 <br/>

http://publicationslist.org/thomas.oommen/refid75 2017-08-29T07:55:33Z

Bouali, E.H., Oommen T., Escobar-Wolf R. (2017) <i>Landslides</i> : <br/>

http://publicationslist.org/thomas.oommen/refid76 2017-08-04T14:33:21Z

Frank J., Rebbapragada U., Bialas J., Oommen T., and Havens T. (2017) <i>Remote Sensing</i> : <br/>

http://publicationslist.org/thomas.oommen/refid74 2017-08-01T19:02:14Z

Hu X., Oommen T., Wang T., Kim J., and Lu Z. (2017) <i>Remote Sensing of Environment.</i> : <br/>

http://publicationslist.org/thomas.oommen/refid60 2016-01-19T13:33:45Z

Pacaya volcano is a persistently active basaltic cone complex located in the Central American Volcanic Arc in Guatemala. In May of 2010, violent Volcanic Explosivity Index-3 (VEI-3) eruptions caused significant topographic changes to the edifice, including a linear collapse feature 600 m long originating from the summit, the dispersion of ~20 cm of tephra and ash on the cone, the emplacement o...<br/><br/>L N. Schaefer, Z Lu, T Oommen (2016) <i>Remote Sensing</i> 8: 73 <br/>

http://publicationslist.org/thomas.oommen/refid59 2016-01-15T16:43:32Z

Geotechnical assets are those found along transportation environments and are made up of or supported by earth materials. A geotechnical asset management program aims to achieve life-cycle performance goals by maintaining the geotechnical assets in a safe, cost-effective, and timely manner. Interferometric synthetic aperture radar, a remote sensing technique that derives ground deformation informa...<br/><br/>Bouali E, Oommen T, Escobar-Wolf R (2016) <i>Journal of Infrastructure Systems</i> : <br/>

http://publicationslist.org/thomas.oommen/refid62 2017-04-24T17:39:26Z

B Zwissler, T Oommen, S Vitton (2016) <i>Journal of Cold Regions Engineering</i> <i></i> <i></i> 30(4): <br/>

http://publicationslist.org/thomas.oommen/refid68 2017-08-03T21:33:44Z

Bouali, E.H., Oommen T., Vitton S.J., Escobar-Wolf R., Brook C.N. (2016) <i>Environmental and Engineering Geology</i> : 1078-7275<br/>

http://publicationslist.org/thomas.oommen/refid64 2017-04-24T17:39:05Z

V JB Flower, T Oommen, S A Carn (2016) <i>Atmos. Meas. Tech. Discuss.</i> <i></i> <i></i> 9(11): <br/>

http://publicationslist.org/thomas.oommen/refid66 2017-08-01T14:19:00Z

Bialas J., Oommen T., Rebbapragada U., Levin E. (2016) <i>Journal of Applied Remote Sensing</i> 10: 3 <br/>

http://publicationslist.org/thomas.oommen/refid67 2017-08-01T14:23:41Z

Kern, A., Addison, P., Oommen T., Salazar S., Coman R. (2016) <i>Mathematical Geosciences</i> : <br/>

http://publicationslist.org/thomas.oommen/refid55 2015-01-05T01:30:52Z

The San Vicente volcano in central El Salvador has a recurring and destructive pattern of landslides and debris flows occurring on the northern slopes of the volcano, and in recent memory, there have been at least seven major destructive debris flows. There has been no known attempt to study the inherent stability of these slopes and determine the factors that might lead to slope instability. Past...<br/><br/>D M Smith, Oommen T, Bowman L J, Gierke J S, Vitton S (2015) <i>Natural Hazards</i> 75: 3 2291-2310<br/>

http://publicationslist.org/thomas.oommen/refid57 2015-07-16T03:08:29Z

In volcanic regions, reliable estimates of mechanical properties for specific volcanic events such as cyclic inflation-deflation cycles by magmatic intrusions, thermal stressing, and high temperatures are crucial for building accurate models of volcanic phenomena. This study focuses on the challenge of characterizing volcanic materials for the numerical analyses of such events. To do this, we eval...<br/><br/>L N. Schaefer, J E. Kendrick, T Oommen, Y Lavallée, G Chigna (2015) <i>Frontiers in Earth Science</i> 3: 29 <br/>

http://publicationslist.org/thomas.oommen/refid58 2015-07-16T03:11:39Z

Interferometric synthetic aperture radar (InSAR) was used to measure ground deformation during explosive eruptions on 27 and 28 May 2010 at Pacaya volcano, Guatemala. Interferograms produced using spaceborne and airborne synthetic aperture radar data reveal ∼3 m of along-slope movement of the southwest sector of the edifice during these eruptions. This is the largest measured slope instability w...<br/><br/>L.N. Schaefer, Z. Lu, and T. Oommen (2015) <i>Geology</i> : <br/>

http://publicationslist.org/thomas.oommen/refid61 2016-01-20T18:56:07Z

Mapping and monitoring leaf area index (LAI) is critical to model surface energy balance, evapotranspiration, and vegetation productivity. Remote sensing helps in rapid collection of LAI on individual fields over large areas, in a time and cost-effective manner using empirical regression between LAI and spectral vegetation indices (SVI). However, these relationships may be ineffective when sun-sur...<br/><br/>Gowda PH, Oommen T, Misra D, Schwartz RC, Howell TA, Wagle P (2015) <i>Remote Sensing & GIS</i> 4: 156 <br/>

http://publicationslist.org/thomas.oommen/refid56 2015-01-05T01:35:04Z

The Calvert Cliffs, which form much of the western coastline of the Chesapeake Bay in Calvert County, Maryland, are actively eroding and destabilizing, yielding critical situations for many homes in close proximity to the slope’s crest. Past studies have identified that waves directly interacting with the slope toe control cliff recession; however, where waves do not regularly interact with the ...<br/><br/>B Zwissler, T Oommen, S Vitton (2014) <i>Geotechnical and Geological Engineering</i> 32: 4 1133-1148<br/>

http://publicationslist.org/thomas.oommen/refid54 2015-01-04T22:08:07Z

Pacaya is an active stratovolcano located 30 km south of Guatemala City, Guatemala. A large (0.65 km3) sector collapse of the volcano occurred 0.6–1.6 ka B.P., producing a debris avalanche that traveled 25 km SW of the edifice. The current cone has since rebuilt within the scarp of this ancestral collapse. The structural setting of the volcano, along with two recent smaller-volume collapses in 1...<br/><br/>L N Schaefer, T Oommen, C Corazzato, A Tibaldi, R Escobar-Wolf, W I Rose (2013) <i>Bulletin of Volcanology</i> 75: 720 <br/>

http://publicationslist.org/thomas.oommen/refid52 2015-01-04T22:12:24Z

Documenting earthquake-induced liquefaction effects is important to validate empirical liquefaction susceptibility models and to enhance our understanding of the liquefaction process. Currently, after an earthquake, field-based mapping of liquefaction can be sporadic and limited due to inaccessibility and lack of resources. Alternatively, researchers have used change detection with remotely sense...<br/><br/>Oommen T., Baise L.G., Gens R., Prakash A., and Gupta R.P. (2013) <i>Environmental & Engineering Geoscience</i> 19: (4) 303-318<br/>

http://publicationslist.org/thomas.oommen/refid49 2011-07-12T18:14:00Z

T. Oommen, U. Rebbapragada, D Cerminaro (2012) <i>Proceedings of the American Society of Civil Engineers, GeoCongress, Oakland, CA, USA.</i> <br/>

http://publicationslist.org/thomas.oommen/refid41 2012-03-31T04:55:55Z

Samui P., Gowda P. H., Oommen T., Howell T. A., Marek T. H., (2012) <i>International Journal of Remote Sensing</i> 33 : (18) 5732-5745<br/>

http://publicationslist.org/thomas.oommen/refid44 2011-02-15T17:58:04Z

The Texas High Plains Evapotranspiration (ET) Network collects meteorological data from 18 grass reference weather stations at hourly intervals and estimates hourly and daily reference ET using the American Society of Civil Engineers (ASCE) Standardized Reference ET equation. Producers in the Texas High Plains can obtain daily reference ET for any weather station of their interest by subscribing t...<br/><br/>Wonsook H, Prasanna G H, Oommen T, Marek T H, Porter D O, Howell T H, (2011) <i>EWRI World Environmental & Water Resources Congress, Palm Springs, CA</i> <br/>

http://publicationslist.org/thomas.oommen/refid37 2010-10-11T02:43:41Z

Oommen T., Thompson E., Tanaka H., Baise L.G., Tanaka Y., and Kayen R.E. (2011) <i>5th International Conference on Earthquake Geotechnical Engineering, Santiago, Chile.</i> <br/>

http://publicationslist.org/thomas.oommen/refid34 2013-03-20T15:25:25Z

Logistic regression is a widely used statistical method to relate a binary response variable to a set of explanatory variables and maximum likelihood is the most commonly used method for parameter estimation. A maximum-likelihood logistic regression (MLLR) model predicts the probability of the event from binary data defining the event. Currently, MLLR models are used in a myriad of fields inc...<br/><br/>Oommen T., Baise L.G., and Vogel R.M. (2011) <i>Mathematical Geosciences</i> 43: 1 99-120<br/>

http://publicationslist.org/thomas.oommen/refid39 2011-02-15T17:50:39Z

Oommen T., Misra D., Prakash A., Bandopadhyay S., Naidu S., and Kelley J.J. (2011) <i>Natural Resources Research</i> 20: 1 11-24<br/>

http://publicationslist.org/thomas.oommen/refid45 2011-03-31T13:37:52Z

T Oommen (2011) <i>54th Annual Meeting of the Association of Environmental & Engineering Geologists, Anchorage, Ak</i> <br/>

http://publicationslist.org/thomas.oommen/refid51 2011-08-05T14:00:53Z

L N Schaefer, C Corazzato, P Manzoni, T Oommen, A Tibaldi (2011) <i>GSA Annual Meeting Proceedings</i> <br/>

http://publicationslist.org/thomas.oommen/refid46 2011-03-31T13:38:08Z

P Manzoni, T Oommen, W I Rose Jr., A Tibaldi, L. N. Schaefer, C. Corazzato; S. J. Vitton (2011) <i>54th Annual Meeting of the Association of Environmental & Engineering Geologists, Anchorage, Ak</i> <br/>

http://publicationslist.org/thomas.oommen/refid50 2011-08-05T14:00:11Z

L N Schaefer, C Corazzato, T Oommen, P Manzoni, A Tibaldi (2011) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid47 2011-03-31T14:25:01Z

Misra D, Calvin P. A., Oommen T., Ganguli R., Sonwalkar V., and Metz P.A. (2011) <i>54th Annual Meeting of the Association of Environmental & Engineering Geologists, Anchorage, Ak</i> <br/>

http://publicationslist.org/thomas.oommen/refid48 2011-07-12T17:51:58Z

Rebbapragada U., T. Oommen (2011) <i>Proceedings of the 28th International Conference on Machine Learning, Bellevue, WA, USA.</i> <br/>

http://publicationslist.org/thomas.oommen/refid23 2010-07-09T16:11:19Z

Historically, earthquake induced liquefaction is known to have caused extensive structural and lifeline damages around the world. Documenting these instances of liquefaction is extremely important to help earthquake professionals to better evaluate design procedures, and enhance their understanding of liquefaction processes. Currently, after an earthquake event, field-based mapping of liquefaction...<br/><br/>Oommen T., Baise L.G., Gens R., Prakash A., and Gupta R.P. (2010) <i>Seismological Research Letters, 81(2): 253-283.</i> <br/>

http://publicationslist.org/thomas.oommen/refid24 2010-07-09T16:22:20Z

On January 12, 2010 a magnitude Mw 7.0 earthquake struck the Port-au-Prince region of Haiti. With recent technological advances, this earthquake has become a test-case for using technology in post-earthquake health monitoring and rapid relief efforts. Within days of the earthquake, several sets of satellite and aerial imagery were taken and made available for emergency response efforts. The high r...<br/><br/>Oommen T., Baise L.G., Gens R., Prakash A., (2010) <i>Seismological Research Letters, 81(2): 253-283.</i> <br/>

http://publicationslist.org/thomas.oommen/refid28 2010-07-09T16:54:02Z

T Oommen (2010) <br/>

http://publicationslist.org/thomas.oommen/refid22 2010-10-11T01:51:42Z

Empirical Liquefaction Models (ELMs) are the usual approach for predicting the occurrence of soil liquefaction. These ELMs are typically based on in situ index tests, such as the Standard Penetration Test (SPT) and Cone Penetration Test (CPT), and are broadly classified as deterministic and probabilistic models. No objective and quantitative comparison of these models has been published. The deter...<br/><br/>Oommen T., and Baise L.G. (2010) <i>Fifth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics</i> <br/>

http://publicationslist.org/thomas.oommen/refid36 2010-10-11T02:41:00Z

Wonsook Ha., Gowda P.H., Oommen T., Howell T.A., and Hernandez J.E. (2010) <i>Eos Trans. AGU, Fall Meet. Suppl. Dec 13-17, 2010. San Francisco, California.</i> <br/>

http://publicationslist.org/thomas.oommen/refid33 2010-12-06T16:38:26Z

Empirical liquefaction models ELMs are the standard approach for predicting the occurrence of soil liquefaction. These models are typically based on in situ index tests, such as the standard penetration test SPT and cone penetration test CPT, and are broadly classified as deterministic and probabilistic models. No objective and quantitative comparison of these models have been published. Simil...<br/><br/>Oommen T., Baise L.G., and Vogel R.M. (2010) <i>ASCE Journal of Geotechnical and Geoenvironmental Engineering</i> 136: 12 1618-1633<br/>

http://publicationslist.org/thomas.oommen/refid35 2010-10-11T02:45:15Z

Oommen T, Baise L G, Gens R, Prakash A, and Gupta R P (2010) <i>8th International Workshop on Remote Sensing for Disaster Management, Tokyo, Japan.</i> <br/>

http://publicationslist.org/thomas.oommen/refid32 2010-10-15T21:30:14Z

The geotechnical earthquake engineering community often adopts empirically derived models. Unfortunately, the community has not embraced the value of model validation, leaving practitioners with little information on the uncertainties present in a given model and the model’s predictive capability. In this study, we present a machine learning technique known as support vector regression SVR to...<br/><br/>Oommen T., and Baise L.G. (2010) <i>ASCE Journal of Computing in Civil Engineering</i> 24: 6 467-477<br/>

http://publicationslist.org/thomas.oommen/refid21 2010-07-09T16:20:33Z

Historically, earthquake induced liquefaction is known to have caused extensive damage around the world. Therefore, there is a compelling need to characterize and map liquefaction after a seismic event. Currently, after an earthquake event, field-based mapping of liquefaction is sporadic and limited due to inaccessibility, short life of the failures, difficulties in mapping large aerial extents, a...<br/><br/>Oommen T., Baise L.G., Gens R., Prakash A., and Gupta R.P. (2009) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid20 2010-07-09T16:19:50Z

Runoff is one of the most complex hydrological phenomena to comprehend due to the tremendous spatial variability of catchment characteristics and precipitation patterns. However, the determination of runoff is critical for flood protection works, effective water storage and release, and protection of agricultural lands. The quantity of runoff depends on parameters such as rainfall intensity, durat...<br/><br/>Misra D., Oommen T., Radatz T., and Thompson A. (2009) <i>Eos Trans. AGU Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid31 2010-07-09T20:44:15Z

The objective of the study was to use Support Vector Machines (SVM) to simulate runoff and sediment yield from watersheds. Recently, pattern-recognition algorithms such as artificial neural networks (ANN) have gained popularity in simulating rainfall-runoff-sediment yield processes producing comparable accuracy to physics-based models. We have simulated daily, weekly, and monthly runoff and sedime...<br/><br/>Misra D., Oommen T., Agarwal A., Mishra S.K., and Thompson A. (2009) <i>Biosystems Engineering</i> 103: 4 527-535<br/>

http://publicationslist.org/thomas.oommen/refid17 2010-07-09T15:44:09Z

Runoff is one of the most complex hydrological phenomena to comprehend due to the tremendous spatial variability of catchment characteristics and precipitation patterns. However, the determination of runoff is critical for flood protection works, effective water storage and release, and protection of land. The quantity of runoff depends on parameters such as rainfall intensity, duration, initial...<br/><br/>Oommen T., Radatz T., Thompson A., and Misra D. (2008) <i>51st Annual Meeting,</i> <br/>

http://publicationslist.org/thomas.oommen/refid30 2010-07-09T20:35:28Z

Goodnews Bay, southwest Alaska, is known for platinum (Pt) reserve that extends offshore in the Bering Sea. To assess the nearshore placer potential we first collated marine Pt concentrations available since 1960 in a geographic information system (GIS) database. Subsequently, in 2005, we collected 23 pipe dredge sediment samples and 26 vibracores from unexplored sites and analyzed them for Pt. Th...<br/><br/>Oommen T., Prakash A., Misra D., Kelley J.J., Naidu S., and Bandopadhyay S. (2008) <i>Marine Georesources & Geotechnology</i> 26: 1 1-18<br/>

http://publicationslist.org/thomas.oommen/refid13 2010-07-09T15:25:36Z

Oommen T., and Misra D. (2008) <i>Annual Alaska-American Water Resources Association Conference,</i> <br/>

http://publicationslist.org/thomas.oommen/refid14 2010-07-09T15:30:00Z

Runoff is one of the most complex hydrological phenomena to comprehend due to the tremendous spatial variability of catchment characteristics and precipitation patterns. However, the determination of runoff is critical for flood protection works, effective water storage and release, and protection of agricultural lands. The quantity of runoff depends on parameters such as rainfall intensity, durat...<br/><br/>Oommen T., Radatz T., Thompson A., and Misra D. (2008) <i>Annual Meeting,</i> <br/>

http://publicationslist.org/thomas.oommen/refid15 2010-07-09T15:35:57Z

Lateral spreading is the most persistent type of liquefaction induced ground failure. During lateral spreading, integral mass of surficial soil displace downslope or towards a free face along a shear zone that has formed within the liquefied soil layer. The amount of displacement due to lateral spreading depends on several factors such as physical and mechanical characteristics of the soil lay...<br/><br/>Oommen T., and Baise L.G. (2008) <i>Seismological Research Letters, 79(2): 277.</i> <br/>

http://publicationslist.org/thomas.oommen/refid18 2010-07-09T15:47:24Z

Leaf Area Index (LAI) is an important hydrologic parameter used for the estimation of evapotranspiration (ET) amongst other processes. Remote sensing provides an inexpensive and non-destructive tool in collecting LAI information on various spatial and temporal scales. In this study, we have developed models based on support vector machines (SVM) to estimate LAI using Landsat 5 Thematic Mapper (TM)...<br/><br/>Misra D., Oommen T., Prasanna H.G., Bajwa S.G., and Howell T.A. (2008) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid16 2010-07-09T16:19:05Z

Earthquake induced ground shaking in areas with saturated sandy soils pose a major threat to communities due to soil liquefaction. Currently liquefaction potential is assessed on two scales: regionally based on surficial geologic unit or locally based on geotechnical sample data. However, the regional maps fail to capture the variability whereas; the collection of geotechnical data on the local sc...<br/><br/>Oommen T., and Baise L.G. (2008) <i>IEEE International Geoscience & Remote Sensing Symposium 1(III): 51-54.</i> <br/>

http://publicationslist.org/thomas.oommen/refid29 2010-07-09T20:29:48Z

Accurate thematic classification is one of the most commonly desired outputs from remote sensing images. Recent research efforts to improve the reliability and accuracy of image classification have led to the introduction of the Support Vector Classification (SVC) scheme. SVC is a new generation of supervised learning method based on the principle of statistical learning theory, which is designed ...<br/><br/>Oommen T., Misra D., Twarakavi N.K.C., Prakash A., Sahoo B., and Bandopadhyay S. (2008) <i>Mathematical Geoscience</i> 40: 4 409-424<br/>

http://publicationslist.org/thomas.oommen/refid19 2010-07-09T16:18:14Z

Seismic liquefaction is the loss of strength of soil due to shaking that leads to various ground failures such as lateral spreading, settlements, tilting, and sand boils. It is important to document these failures after earthquakes to advance our study of when and where liquefaction occurs. The current approach of mapping these failures by field investigation teams suffers due to the inaccessibili...<br/><br/>Oommen T., Baise L.G., Gens R., Prakash A., and Gupta R.P. (2008) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid26 2010-07-09T16:31:59Z

Bandopadhyay S., Misra D., Prakash A., Naidu S.A., Kelley J.J., and Oommen T., (2008) <br/>

http://publicationslist.org/thomas.oommen/refid25 2010-07-09T16:30:20Z

Misra D., Heinrichs T.A., Bandopadhyay S., Naidu S. A., and Oommen T., (2008) <br/>

http://publicationslist.org/thomas.oommen/refid8 2010-07-09T14:45:10Z

Physics-based models for simulation of runoff and sediment yield from watersheds are quite complex and involved due to tremendous spatial variability of watershed characteristics and precipitation patterns. Recently, pattern-learning algorithms such as the artificial neural networks (ANN) have gained popularity in simulating the rainfall-runoff-sediment yield processes producing comparable accurac...<br/><br/>Oommen T., Misra D., Agarwal A., and Mishra S.K. (2007) <i>Annual Meeting,</i> <br/>

http://publicationslist.org/thomas.oommen/refid2 2010-07-09T14:14:41Z

A standard part of processing remote sensing data is image classification, in which we assume each pixel belongs to a class or theme with a unique spectral signature. Discrimination may be defined as the phenomenon where multiple themes exhibit very similar spectral patterns within a wavelength range of interest and is a common challenge in remote sensing. As a result, researchers may not achieve ...<br/><br/>Sahoo B, Oommen T, Misra D, Newby G (2007) <i>Canadian Journal of Remote Sensing</i> 33: 6 551-560<br/>

http://publicationslist.org/thomas.oommen/refid10 2010-07-09T14:52:55Z

Sahoo B., Oommen T., and Misra D. (2007) <i>50th Annual Meeting,</i> <br/>

http://publicationslist.org/thomas.oommen/refid9 2010-07-09T14:50:08Z

Oommen T., and Misra D. (2007) <i>Annual Alaska-American Water Resources Association Conference,</i> <br/>

http://publicationslist.org/thomas.oommen/refid11 2010-07-09T14:56:06Z

In order to help communities better plan and mitigate the effects of seismic hazards, it is important to use innovations in science and technology to improve our techniques for mapping the spatial extents of seismic hazards. Earthquake induced ground shaking in areas with saturated sandy soils pose a major threat to communities as a result of the soil liquefaction. Liquefaction is the process ...<br/><br/>Oommen T., and Baise L.G. (2007) <i>Northeast Geotechnical Graduate Research Symposium</i> <br/>

http://publicationslist.org/thomas.oommen/refid12 2010-07-09T15:23:57Z

In order to help communities better plan and mitigate the effects of seismic hazards, it is important to use innovations in science and technology to improve our techniques for mapping the spatial extents of seismic hazards. Earthquake induced ground shaking in areas with saturated sandy soils pose a major threat to communities as a result of the soil liquefaction. Liquefaction is the process of c...<br/><br/>Oommen T., and Baise L.G., (2007) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid27 2010-07-09T16:54:34Z

Goodnews Bay, southwest Alaska, is known for extensive Pt reserves that have their source in the neighboring Red Mountain. The reserves potentially extend offshore into the Bering Sea. This study aims at developing a geodatabase to integrate all offshore platinum related data collected by researchers and agencies in the past, with the intent to identify data gaps. Based on these data gaps 49 n...<br/><br/>T oommen (2006) <br/>

http://publicationslist.org/thomas.oommen/refid5 2010-07-09T14:35:46Z

Physics-based models for simulation of runoff and sediment yield from watersheds are quite complex and involved due to tremendous spatial variability of watershed characteristics and precipitation patterns. Recently, pattern-learning algorithms such as the artificial neural networks (ANN) have gained popularity in simulating the rainfall-runoff-sediment yield processes producing comparable accurac...<br/><br/>Misra D, Oommen T, Agarwal A, Mishra S K (2006) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid7 2010-07-09T14:41:37Z

The ultramafic rocks of the Red Mountain in Goodnews Bay area of southwest Alaska have been the commercial source of onshore placer Pt since 1926. The proximity of the Red Mountain to the Bering Sea, our geophysical survey revealing the possibility of drowned ultramafic and paleo-drainage channels offshore, and the platinum samples collected by various agencies suggests the availability of a signi...<br/><br/>Oommen T., Misra D., Prakash A., Bandopadhyay S., Naidu S., and Kelley J.J. (2006) <i>Eos Trans. AGU Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid6 2010-07-09T14:38:46Z

Image classification is a standard part of processing remote sensing data and is based on the assumption that each pixel belongs to a class or theme with a unique spectral signature. However, a common challenge in remote sensing is image discrimination, also known as the "colinearity". It may be defined as the phenomenon where multiple themes exhibit very similar spectral patterns within a wavelen...<br/><br/>Sahoo B, Oommen T., Misra D., and Newby G. (2006) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>

http://publicationslist.org/thomas.oommen/refid1 2010-07-09T14:01:03Z

Misra D, Schatzinger A R, Oommen T (2005) <i>World Journal of Engineering</i> 2: 3 89-103<br/>

http://publicationslist.org/thomas.oommen/refid3 2010-07-12T01:17:16Z

Oommen T, Prakash A, Misra D, Gens R, Bandopadhyay S, Naidu S, and Kelley J J (2005) <i>Geology Symposium,</i> <br/>

http://publicationslist.org/thomas.oommen/refid4 2010-07-09T14:32:22Z

The Goodnews Bay region, located in the southwest Alaska, was the only primary platinum-producing region in the U.S. until 1980 with about 20 metric tons of platinum recovered. The U.S Geological Survey has estimated the coastal platinum placer potential at Goodnews Bay region to be 155 metric tons. In order to estimate and locate the offshore platinum placer distribution in this region, a GIS dat...<br/><br/>Oommen T, Kelley J J, Naidu S, Prakash A, Misra D, and Bandopadhyay S (2005) <i>Eos Trans. AGU, Fall Meet. Suppl.</i> <br/>