Tamlin Pavelsky
Tamlin Pavelsky  Email | Website
University of North Carolina
SWOT Science Leadership
Recent SWOT-related Publications | See All
Global Extent of Rivers and Streams (2018)
Characterizing Water Surface Elevation Under Different Flow Conditions for the Upcoming SWOT Mission (2018)
AirSWOT Measurements of River Water Surface Elevation and Slope: Tanana River, AK (2017)
An Intercomparison of Remote Sensing River Discharge Estimation Algorithms from Measurements of River Height, Width, and Slope (2016)

Meeting Presentations (65)

Presentation not available
Water Surface Slope Variability in Deltaic Regions: Experimental Results from Airborne Campaigns in the Atchafalaya Basin [presentation]
Simard, M., Denbina, M., Jones, C., Pavelsky, T., Rodriguez, E., Liao, T-H., Liu, K., Laignel, B., Christensen, A., Twilley, R., Jensen D., and Lamb, M. (28-Jun-18)
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Hydrology Breakout Session Summaries [presentation]
Hydrology Leads (28-Jun-18)
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SWOT Science Team Early Adopters from South America [presentation]
Papa, F., Gosset, M., Abarca del Rio, R., Calmant, S., Crétaux, J-F., and Pavelsky, T. (27-Jun-18)
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Current Pre-launch and Post-launch Cal/Val Plans Led by France [presentation]
Calmant, S., Crétaux, J-F., and Picot, N. (27-Jun-18)
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Current Pre-launch and Post-launch Hydrology Cal/Val Plans Led by U.S. [presentation]
Minear, J.T. and Pavelsky, T. (27-Jun-18)
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Recent AirSWOT Results for Lakes and Wetlands [presentation]
Pitcher, L., Smith, L., Pavelsky, T., Moller, D., Gleason, C., Fayne, J., Cooley, S., Humphries-Altenau, E., and Allen, G. (27-Jun-18)
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Update: A Priori River Database [presentation]
Pavelsky, T. and Durand, M. (27-Jun-18)
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Enhanced Width: Can We Use River Height Measurements to Improve River Width? [presentation]
Durand, M., Pavelsky, T., and Hagemann, M. (27-Jun-18)
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SWOT Ice Flagging: Current Status and Options [presentation]
Pavelsky, T., Zhang, S., Dolan, W., and Yang, X. (27-Jun-18)
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SWOT Raster: Update [presentation]
Pavelsky, T., and Zhang, S. (27-Jun-18)
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Update on Layover Results [presentation]
Pavelsky, T. and Chen, C. (26-Jun-18)
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Hydraulic Science and Applications from SWOT in Canada [presentation]
Peters, D., Pavelsky, T., and Pietroniro, A. (26-Jun-18)
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Update on Layover Results [presentation]
Pavelsky, T. and Chen, C. (26-Jun-18)
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U.S. Pre-Launch and Post-Launch Cal/Val Plans [presentation]
Minear, T. and Pavelsky, T. (29-Jun-17)
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Highly Nominal U.S. Post-Launch Cal/Val Plan [presentation]
Pavelsky, T. and Minear, T. (29-Jun-17)
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2017 AirSWOT Flights and SWOT Cal/Val Activities [presentation]
Smith, L., Gleason, C., Pietroniro, A., Pavelsky, T. and Minear, T. (29-Jun-17)
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Summer 2017 Experiments [presentation]
Smith, L. and Minear, T. (29-Jun-17)
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Results, Modeling and Lessons Learned from a Multi-Aircraft Airborne and Field Campaign in the Mississippi Delta [presentation]
Simard, M., Liu, K., Jensen, D., Rodriguez, E., Jones, C., Laignel, B., Castañeda, E., Christensen, A., Lyon, C., and Pavelsky, T. (28-Jun-17)
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Raster Data Product Status [presentation]
Pavelsky, T., Pottier, C., and Fjørtoft, R. (27-Jun-17)
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Progress and Remaining Tasks for A Priori River Database [presentation]
Pavelsky, T., Durand, M., Lion, C., and Schumann, G. (27-Jun-17)
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A Priori Layover Analysis [presentation]
Pavelsky, T., Chen, C., Sheng, Y., and Durand, M. (27-Jun-17)
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Hydrology Keynote Presentation: The Role of SWOT in Global Lake Science [presentation]
Cretaux, J-F. and Pavelsky, T. (26-Jun-17)
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Meeting Objectives [presentation]
Morrow, R., Fu, L-L., and Pavelksy, T. (26-Jun-17)
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Hydrology Data Products: Current Status and On-Going Work [presentation]
Pottier, C., Callahan, P., Durand, M., Pavelsky, T., Biancamaria, S., and Cretaux, J-F. (26-Jun-17)
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Status of HR Data Coverage During Fast Sampling Phase, Calibration OBP [presentation]
Chen, C., Pavelsky, T. and Morrow, R. (26-Jun-17)
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Seasonal HR Coverage - Trade for Northern Hemisphere Sea-Ice and Snow-Covered Land? [presentation]
Pavelsky, T., Cretaux, J-F., and Kwok, R. (26-Jun-17)
Poster
Characterizing AirSWOT Elevation Accuracy on the Willamette River, Oregon [poster]
Tuozzolo, S., Overstreet, B.T., Mangano, J., Minear, J.T., Stringham, C., Chen, C.W., Pavelsky, T., Frasson, R.P.M., Fonstad, M.A., Wei, R., and Durand, M.T. (13-Dec-16). The upcoming Surface Water and Ocean Topography (SWOT) mission aims to map the world's freshwater resources using Ka-band interferometric radar. In anticipation of the SWOT mission, an airborne calibration/validation system, AirSWOT, has been developed to generate SWOT-like measurements of oceanic and surface waters.
Poster
Developing a Global Network of River Reaches in Preparation for SWOT [poster]
Lion, C., Pavelsky, T., Allen, G.H., Beighley, E., Schumann, G., and Durand, M.T. (13-Dec-16). A priori dataset for rivers is needed in order to facilitate analysis of raw SWOT data. The information required to produce this dataset includes measurements of river width, elevation, slope, planform, river network topology, and flow accumulation. To produce this product, we have linked two existing global datasets: the Global River Widths from Landsat (GRWL) database, which contains river centerline locations, widths, and a braiding index derived from Landsat imagery, and a modified version of the HydroSHEDS hydrologically corrected digital elevation product, which contains heights and flow accumulation measurements for streams at 3 arcseconds spatial resolution.
Poster
GRRATS: A New Approach to Inland Altimetry Processing for Major World Rivers [poster]
Coss, S.P., Tuozzolo, S., Durand, M., Yi, Y., Jia, Y, Guo, Q., Shum, C.K., Allen, G., Calmant, S., and Pavelsky, T. (13-Dec-16). Here we present work-in-progress results aimed at generating a new radar altimetry dataset GRRATS (Global River Radar Altimetry Time Series) extracted over global ocean-draining rivers wider than 900 m.
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Hydrology Science and Applications from the Surface Water and Ocean Topography (SWOT) Mission [presentation]
Cretaux, J-F. and Pavelsky, T. (13-Dec-16). Because SWOT will measure temporal variations in the height, width, and slope of rivers, several algorithms have been developed to estimate river discharge solely from SWOT measurements. Additionally, measurements of lake height and area will allow estimation of variability in lake water storage. In this introductory presentation, we will discuss SWOT's capabilities and the science questions that it will aim to address.
Poster
Novel AirSWOT Measurements of River Height and Slope, Tanana River, AK [poster]
Altenau, E.H., Pavelsky, T., Moller, D., Lion, C., Pitcher, L.H., Allen, G.H., Bates, P.D., Calmant, S., Durand, M.T., and Smith, L.C. (13-Dec-16). The Surface Water and Ocean Topography (SWOT) satellite mission aims to increase our knowledge of the global water cycle by providing 2D measurements of terrestrial and ocean water surface elevations (WSE). For the first time, SWOT will provide high accuracy heights and slopes of rivers 100 m wide and greater for the majority of the globe. Here, we present new measurements of river height and slope from AirSWOT, the SWOT mission's airborne analog.
Poster
Predicting Lake Depth from Topography to Map Global Lake Volume [poster]
Holtzman, N. and Pavelsky, T. (13-Dec-16). We develop a simple statistical model to predict lake depth from two explanatory variables: the mean relief above the lake surface of a buffer surrounding the lake, and whether the lake's location was glaciated in the last ice age.
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Vector Data Products [presentation]
Pavelsky, T. and Cretaux, J-F. (16-Jun-16)
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A Priori River & Lake Datasets [presentation]
Pavelsky, T. (15-Jun-16)
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AirSWOT Hydrology [presentation]
Pavelsky, T., Durand, M., Rodriguez, E., Michailovsky, C., and Humphries, E. (15-Jun-16)
Poster
In-situ Measurements of Water Surface Elevation and Width for Discharge Algorithm Development [poster]
Tuozzolo, S., Durand, M., and Pavelsky, T. (14-Jun-16)
Poster
Preliminary Results from the 2015 AirSWOT Campaign: Tanana River, Alaska [poster]
Altenau, E., Pavelsky, T., Lion, C., Pitcher, L., Allen, G., Bates, P., Butman, D., Calmant, S., Durand, M., Moller, D., and Smith, L. (14-Jun-16)
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Mission Orbit and Phases [presentation]
Fu, L-L. and Pavelsky, T. (13-Jun-16). The 21-day science orbit presents challenges from temporally irregular sampling. The number of overflights in one 21-day cycle varies from one to two closely separate samples at low latitudes to a 10-day subcycle at the mid latitudes, to more than 3 at high latitudes. The 90-day cal/val phase will have a 1-day fast sampling orbit. View the animation embedded on Slide 4 of this presentation.
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Scientific Objectives for the 1-day in Hydrology [presentation]
Smith, L., and Pavelsky, T. (09-Jul-15)
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Planned Approach to SWOT Hydrology Cal/Val [presentation]
Cretaux, J-F., and Pavelsky, T. (09-Jul-15)
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Post-Launch Hydro Campaigns [presentation]
Gleason, C., and Pavelsky, T. (09-Jul-15)
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Summary & Final Discussion [presentation]
Fu, L-L., Morrow, R., Cretaux, J-F., Pavelsky, T. (09-Jul-15)
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AirSWOT Alaska Summary [presentation]
Pavelsky, T. (08-Jul-15)
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Lake Vector Products [presentation]
Pavelsky, T. and Cretaux, J-F. (08-Jul-15)
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A Priori Datasets for SWOT Hydrology [presentation]
Pavelsky, T. (08-Jul-15)
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Hydrology [presentation]
Pavelsky, T. and Cretaux, J-F. (07-Jul-15)
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Modification to Error Budget and Science Requirements for Slope [presentation]
Pavelsky, T. and Esteban-Fernandez, D. (07-Jul-15)
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Hydro Issues for Pre-summing Factor of 2-2.5 [presentation]
Pavelsky, T., Cretaux, J-F., and Rodriguez, E. (07-Jul-15)
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Upcoming Science Priorities [presentation]
Cretaux, J-F. and Pavelsky, T. (15-Jan-15)
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Science from AirSWOT [presentation]
Pavelsky, T. (15-Jan-15)
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Cal/Val Plans Post Launch [presentation]
Rodriguez, E., Calmant, S., and Pavelsky, T. (14-Jan-15)
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Characterizing River Slope and River Height/Slope Errors [presentation]
Pavelsky, T., Durand, M., Allen, G., Esteban-Fernandez, D., and Peral, E. (14-Jan-15)
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Digital Elevation Models (DEMs) and SWOT [presentation]
Pavelsky, T., Esteban-Fernandez, D., Rodriguez, E., Andreadis, K., Biancamaria, S., Cretaux, J-F., Durand, M., Fjørtoft, R., Lettenmaier, D., and Smith, L. (14-Jan-15)
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Lake Data Products [presentation]
Pavelsky, T. and Cretaux, J-F. (14-Jan-15)
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SWOT Hydrology Issues [presentation]
Pavelsky, T. and Cretaux, J-F. (13-Jan-15)
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Hydrology Splinter Results [presentation]
Pavelsky, T. and Cretaux, J-F. (16-Jan-14)
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Future AirSWOT Experiments for Cal/Val and Science [presentation]
Calmant, S. and Pavelsky, T. (15-Jan-14)
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Hydrology - Quantification of Hydrology Science Returns from the Baseline and Threshold Missions [presentation]
Pavelsky, T. (14-Jan-14)
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The Impact of SWOT on Hydrologic Science: Part One, Rivers & Floodplains [presentation]
Durand, M., Pavelsky, T., Smith, L., Gleason, C., Cretaux, J-F., Hossain, F., and Biancamaria, S. (14-Jan-14)
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Water Storage from Local to Global from Now to SWOT [presentation]
Cretaux, J-F., Durand, M., Pavelsky, T., Smith, L., Aires, F., Yesou, H., Biancamaria, S., and Lemoigne, P. (14-Jan-14)
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A Hydromorphological Terrestrial Water Classification Algorithm for SWOT [presentation]
Moller, D., Andreadis, K., Simard, M., and Pavelsky, T. (28-Jan-13)
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Addressing SWOT Validation and Science in Complex Arctic Systems [presentation]
Pavelsky, T., Moller, D., Smith, L., and Rodriguez, E. (17-Oct-11)
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Impact of Water Body Classification on SWOT Discharge Retrieval [presentation]
Pavelsky, T. (22-Sep-10)
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Terrestrial Hydrology Science: Storage Change and Discharge [presentation]
Alsdorf, D., Bates, P., Boone, A., Hossain, F., Pavelsky, T., and Sheng, Y. (02-Mar-10)
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The Peace-Athabasca Delta as a Case Study in Understanding the Importance of Water Level Fluctuations [presentation]
Pavelsky, T. (16-Sep-08)

Publications (12)

Allen, G.H. and Pavelsky, T.M. (2018). Global Extent of Rivers and Streams, Science, 360, doi:10.1126/science.aat0636.
Domeneghetti, A., Schumann, G., Frasson, R.P.M., Wei, R., Pavelsky, T., Castellarin, A., Brath, A., and Durand, M. (2018). Characterizing Water Surface Elevation Under Different Flow Conditions for the Upcoming SWOT Mission, J. Hydrol., doi: 10.1016/j.jhydrol.2018.04.046.
Altenau, E.H., Pavelsky, T.M, Moller, D., Lion, C., Pitcher, L.H., Allen, G., Bates, P.D., Calmant, S., Durand, M., and Smith, L.C. (2017). AirSWOT Measurements of River Water Surface Elevation and Slope: Tanana River, AK, Geophys. Res. Lett., 44(1), 181-189, doi: 10.1002/2016GL071577.
Durand, M., Gleason, C.J., Garambois, P.A., Bjerklie, D., Smith, L.C., Roux, H., Rodriguez, E., Bates, P.D., Pavelsky, T.M., Monnier, J., Chen, X., Di Baldassarre, G., Fiset, J-M., Flipo, N., Frasson, R.P.D., Fulton, J., Goutal, H., Hossain, F., Humphries, E., Minear, J.T., Mukolwe, M.M., Neal, J.C., Ricci, S., Sanders, B.F., Schumann, G., Schubert, J.E., and Vimlin, L. (2016). An Intercomparison of Remote Sensing River Discharge Estimation Algorithms from Measurements of River Height, Width, and Slope, Water Resour. Res., 52, 4527-4549, doi: 10.1002/2015WR018434.
Biancamaria, S., Lettenmaier, D.P., and Pavelsky, T. (2015). The SWOT Mission and its Capabilities for Land Hydrology, Surv. Geophys. 37:307, doi: 10.1007/s10712-015-9346-y.
Srinivasan, M., Andral, A., Dejus, M., Hossain, F., Peterson, C., Beighley, E., Pavelsky, T., Chao, Y., Doorn, B., Bronner, E., and Houpert, L. (2015). Engaging the Applications Community of the Future Surface Water and Ocean Topography (SWOT) Mission, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7/W3, 1497-1504, doi: 10.5194/isprsarchives-XL-7-W3-1497-2015.
Allen, G.H. and Pavelsky, T.M. (2015). Patterns of River Width and Surface Area Revealed by the Satellite-derived North American River Width Dataset, Geophys. Res. Lett., 42, 395-402, doi:10.1002/2014GL062764.
Pavelsky, T.M., Durand, M.T., Andreadis, K.M., Beighley, R.E., Paiva, R.C., Allen, G.H., and Miller, Z.F. (2014). Assessing the Potential Global Extent of SWOT River Discharge Observations, J. Hydrol., 519, 1516-1525, doi: 10.1016/j.jhydrol.2014.08.044.
Pavelsky, T.M. (2014). Using Width-based Rating Curves from Spatially Discontinuous Satellite Imagery to Monitor River Discharge, Hydrol. Process., 28, 3035-3040, doi:10.1002/hyp.10157.
Smith, L.C. and Pavelsky, T.M. (2009). Remote Sensing of Volumetric Storage Changes in Lakes, Earth Surf. Process. Landforms, 34, 1353-1358. doi: 10.1002/esp.1822.
Smith, L.C. and Pavelsky, T.M. (2008). Estimation of River Discharge, Propagation Speed, and Hydraulic Geometry from Space: Lena River, Siberia, Water Resour. Res., 44, W03427, doi: 10.1029/2007WR006133.
Pavelsky, T.M. and Smith, L.C. (2008). RivWidth: A Software Tool for the Calculation of River Widths from Remotely Sensed Imagery, IEEE Geosci. Remote Sens. Lett., 5(1), 70-73, doi: 10.1109/LGRS.2007.908305.