Search Results - "Howell, E S"

Anomalous collapses of Nares Strait ice arches leads to enhanced export of Arctic sea ice by Moore, G. W. K., Howell, S. E. L., Brady, M., Xu, X., McNeil, K.

“…The ice arches that usually develop at the northern and southern ends of Nares Strait play an important role in modulating the export of Arctic Ocean…”
Get full text

Regional variability of a projected sea ice‐free Arctic during the summer months by Laliberté, F., Howell, S. E. L., Kushner, P. J.

“…Climate projections of sea ice retreat under anthropogenic climate change at the regional scale and in summer months other than September have largely not been…”
Get full text

Evolving relationship of Nares Strait ice arches on sea ice along the Strait and the North Water, the Arctic’s most productive polynya by Moore, G. W. K., Howell, S. E. L., Brady, M.

“…Nares Strait, the waterway that separates northwest Greenland from Ellesmere Island, is a major pathway along which sea ice leaves the Arctic, including the…”
Get full text

Detection of Rotational Acceleration of Bennu Using HST Light Curve Observations by Nolan, M C, Howell, E S, Scheeres, D J, McMahon, J W, Golubov, O, Hergenrother, Carl W, Emery, J P, Noll, K S, Chesley, S R, Lauretta, D S

“…We observed the near‐Earth asteroid (101955) Bennu from the ground in 1999 and 2005, and with the Hubble Space Telescope (HST) in 2012, to constrain its…”
Get full text

Estimating ice phenology on large northern lakes from AMSR-E: algorithm development and application to Great Bear Lake and Great Slave Lake, Canada by Kang, K.-K, Duguay, C. R, Howell, S. E. L

“…Time series of brightness temperatures (TB) from the Advanced Microwave Scanning Radiometer–Earth Observing System (AMSR-E) are examined to determine ice…”
Get full text

Tumbling asteroids by Pravec, P., Harris, A.W., Scheirich, P., Kušnirák, P., Šarounová, L., Hergenrother, C.W., Mottola, S., Hicks, M.D., Masi, G., Krugly, Yu.N., Shevchenko, V.G., Nolan, M.C., Howell, E.S., Kaasalainen, M., Galád, A., Brown, P., DeGraff, D.R., Lambert, J.V., Cooney, W.R., Foglia, S.

“…We present both a review of earlier data and new results on non-principal axis rotators (tumblers) among asteroids. Among new tumblers found, the best data we…”
Get full text

Photometric survey of binary near-Earth asteroids by Pravec, P., Scheirich, P., Kušnirák, P., Šarounová, L., Mottola, S., Hahn, G., Brown, P., Esquerdo, G., Kaiser, N., Krzeminski, Z., Pray, D.P., Warner, B.D., Harris, A.W., Nolan, M.C., Howell, E.S., Benner, L.A.M., Margot, J.-L., Galád, A., Holliday, W., Hicks, M.D., Krugly, Yu.N., Tholen, D., Whiteley, R., Marchis, F., DeGraff, D.R., Grauer, A., Larson, S., Velichko, F.P., Cooney, W.R., Stephens, R., Zhu, J., Kirsch, K., Dyvig, R., Snyder, L., Reddy, V., Moore, S., Gajdoš, Š., Világi, J., Masi, G., Higgins, D., Funkhouser, G., Knight, B., Slivan, S., Behrend, R., Grenon, M., Burki, G., Roy, R., Demeautis, C., Matter, D., Waelchli, N., Revaz, Y., Klotz, A., Rieugné, M., Thierry, P., Cotrez, V., Brunetto, L., Kober, G.

“…Photometric data on 17 binary near-Earth asteroids (15 of them are certain detections, two are probables) were analysed and characteristic properties of the…”
Get full text

Recent extreme light sea ice years in the Canadian Arctic Archipelago: 2011 and 2012 eclipse 1998 and 2007 by Howell, S. E. L, Wohlleben, T, Komarov, A, Pizzolato, L, Derksen, C

“…Remarkably low mean September sea ice area in the Canadian Arctic Archipelago (CAA) was observed in 2011 (146 × 103 km2), a record-breaking level that was…”
Get full text

The unexpected surface of asteroid (101955) Bennu by DellaGiustina, D. N., Balram-Knutson, S. S., Bottke, W. F., d’Aubigny, C. Y. Drouet, Hamilton, V. E., Izawa, M. R. M., Walsh, K. J., Bowles, N. E., Hoak, D., Oliver, S., Squyres, S., Richardson, D., Cloutis, E. A., Hildebrand, A. R., Glotch, T., Cheuvront, A., Tachibana, S., Pajola, M., Dotto, E., Carcich, B., Corvin, M., Nelson, D., Pelgrift, J., Hayne, P., Bierhaus, E. B., Buck, B., J.Cerna, J.Cerna, Church, E., Coltrin, M., Deguzman, A., Ellis, D., Fisher, A., Freund, S., Gonzales, S., Haas, P., Hasten, A., Hilbert, A., Mario, C., Miller, C., Mirfakhrai, A., Skeen, M., Ballouz, R.-L., Bandrowski, R., Contreras, J., Diallo, B., Drozd, K., Fellows, C., Hammond, D., Huettner, E., Janakus, A., Koelbel, L., Kreiner, J., Lewin, C., Maleszewski, C. K., Marchese, K., McDonough, E., Morton, E., Munoz, R., Schwartz, S. R., Stewart, S., Bloomquist, L., Liang, J., Teti, F., Bowles, H., Piacentine, N., Toland, A., Wren, P., Bos, B., Carpenter, R., Fleshman, K., Folta, D., Mazarico, E. M., Moore, W., Rieger, S., Rowlands, D., Scroggins, A., Wasser, M., Keller, L. P., Kissell, J., Weirich, J. R., Bojorquez-Murphy, N., Christensen, P. R., Mehall, G., Rios, K., Rozitis, B., Marshall, J., Killgore, M., Chodas, M., Masterson, R. A., Freemantle, J., Seabrook, J. A., Nguyen, L., Peachey, J., Steele, R., Turner, R., Milazzo, M., Delbo, M., Michel, P.

“…NASA’S Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth…”
Get full text

OSIRIS-REx: Sample Return from Asteroid (101955) Bennu by Lauretta, D. S., Balram-Knutson, S. S., Beshore, E., Boynton, W. V., Drouet d’Aubigny, C., DellaGiustina, D. N., Enos, H. L., Golish, D. R., Hergenrother, C. W., Howell, E. S., Bennett, C. A., Morton, E. T., Nolan, M. C., Rizk, B., Roper, H. L., Bartels, A. E., Bos, B. J., Dworkin, J. P., Highsmith, D. E., Lorenz, D. A., Lim, L. F., Mink, R., Moreau, M. C., Nuth, J. A., Reuter, D. C., Simon, A. A., Bierhaus, E. B., Bryan, B. H., Ballouz, R., Barnouin, O. S., Binzel, R. P., Bottke, W. F., Hamilton, V. E., Walsh, K. J., Chesley, S. R., Christensen, P. R., Clark, B. E., Connolly, H. C., Crombie, M. K., Daly, M. G., Emery, J. P., McCoy, T. J., McMahon, J. W., Scheeres, D. J., Messenger, S., Nakamura-Messenger, K., Righter, K., Sandford, S. A.

“…In May of 2011, NASA selected the O rigins, S pectral I nterpretation, R esource I dentification, and S ecurity– R egolith Ex plorer (OSIRIS-REx) asteroid…”
Get full text

Variations in color and reflectance on the surface of asteroid (101955) Bennu by DellaGiustina, D. N., Burke, K. N., Walsh, K. J., Smith, P. H., Golish, D. R., Bierhaus, E. B., Ballouz, R.-L., Becker, T. L., Campins, H., Tatsumi, E., Yumoto, K., Sugita, S., Deshapriya, J. D. Prasanna, Cloutis, E. A., Clark, B. E., Hendrix, A. R., Sen, A., Asad, M. M. Al, Daly, M. G., Applin, D. M., Avdellidou, C., Barucci, M. A., Becker, K. J., Bennett, C. A., Bottke, W. F., Brodbeck, J. I., Jr, H. C. Connolly, Delbo, M., Leon, J. de, d’Aubigny, C.Y. Drouet, Edmundson, K. L., Fornasier, S., Hamilton, V. E., Hasselmann, P. H., Hergenrother, C. W., Howell, E. S., Jawin, E. R., Kaplan, H. H., Corre, L. Le, Lim, L. F., Li, J.Y., Michel, P., Molaro, J. L., Nolan, M. C., Nolau, J., Pajola, M., Parkinson, A., Popescu, M., Porter, N. A., Rizk, B., Rizos, J. L., Ryan, A. J., Rozitis, B., Shultz, N. K., Simon, A. A., Trang, D., Auken, R. B. Van, Wolner, C. W. V., Lauretta, D. S.

“…Visible-wavelength color and reflectance provide information about the geologic history of planetary surfaces. Here we present multispectral images (0.44 to…”
Get full text

Detection of the YORP effect on the contact binary (68346) 2001 KZ66 from combined radar and optical observations by Zegmott, Tarik J, Lowry, S C, Rożek, A, Rozitis, B, Nolan, M C, Howell, E S, Green, S F, Snodgrass, C, Fitzsimmons, A, Weissman, P R

“…Abstract The Yarkovsky–O’Keefe–Radzievskii–Paddack (YORP) effect is a small thermal-radiation torque experienced by small asteroids, and is considered to be…”
Get full text

Evidence for widespread hydrated minerals on asteroid (101955) Bennu by Hamilton, V. E., Simon, A. A., Christensen, P. R., Reuter, D. C., Clark, B. E., Barucci, M. A., Bowles, N. E., Boynton, W. V., Brucato, J. R., Cloutis, E. A., Connolly, H. C., Donaldson Hanna, K. L., Emery, J. P., Enos, H. L., Fornasier, S., Haberle, C. W., Hanna, R. D., Howell, E. S., Kaplan, H. H., Keller, L. P., Lantz, C., Li, J.-Y., Lim, L. F., McCoy, T. J., Merlin, F., Nolan, M. C., Praet, A., Rozitis, B., Sandford, S. A., Schrader, D. L., Thomas, C. A., Zou, X.-D., Lauretta, D. S.

“…Early spectral data from the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer (OSIRIS-REx) mission reveal evidence for…”
Get full text

Asteroid (101955) Bennu’s Weak Boulders and Thermally Anomalous Equator by Rozitis, B, Ryan, A J, Emery, J P, Christensen, P R, Hamilton, V E, Simon, A A, Reuter, D C, Asad, M Al, Ballouz, R-L, Bandfield, J L, Barnouin, O S, Bennett, C A, Bernacki, M, Burke, K N, Cambioni, S, Clark, B E, Daly, M G, Delbo, M, DellaGiustina, D N, Elder, C M, Hanna, R D, Haberle, C W, Howell, E S, Golish, D R, Jarwin, E R, Kaplan, H H, Lim, L F, Molaro, J L, Munoz, D Pino, Nolan, M C, Rizk, B, Siegler, M A, Susorney, H C M, Walsh, K J, Lauretta, D S

“…Thermal inertia and surface roughness are proxies for the physical characteristics of planetary surfaces. Global maps of these two propertiesdistinguish the…”
Get full text

Overview of the search for signs of space weathering on the low-albedo asteroid (101955) Bennu by Clark, B.E., Sen, A., Zou, X.-D., DellaGiustina, D.N., Sugita, S., Sakatani, N., Thompson, M., Trang, D., Tatsumi, E., Barucci, M.A., Barker, M., Campins, H., Morota, T., Lantz, C., Hendrix, A.R., Vilas, F., Keller, L., Hamilton, V.E., Kitazato, K., Sasaki, S., Matsuoka, M., Nakamura, T., Praet, A., Ferrone, S.M., Hiroi, T., Kaplan, H.H., Bottke, W.F., Li, J.-Y., Le Corre, L., Molaro, J.L., Ballouz, R.-L., Hergenrother, C.W., Rizk, B., Burke, K.N., Bennett, C.A., Golish, D.R., Howell, E.S., Becker, K., Ryan, A.J., Emery, J.P., Fornasier, S., Simon, A.A., Reuter, D.C., Lim, L.F., Poggiali, G., Michel, P., Delbo, M., Barnouin, O.S., Jawin, E.R., Pajola, M., Riu, L., Okada, T., Deshapriya, J.D.P., Brucato, J.R., Binzel, R.P., Lauretta, D.S.

“…This paper summarizes the evidence for the optical effects of space weathering, as well as the properties of the surface that control optical changes, on…”
Get full text

Exogenic Basalt on Asteroid (101955) Bennu by DellaGiustina, D N, Kaplan, H H, Simon, A A, Bottke, W F, Avdellidou, C, Delbo, M, Ballouz, R-L, Golish, D R, Walsh, K J, Popescu, M, Campins, H, Barucci, M A, Poggiali, G, Daly, R T, Corre, L Le, Hamilton, V E, Porter, N, Jawin, E R, McCoy, T J, Jr, H C Connolly, Garcia, J L Rizos, Tatsumi, E, Leon, J de, Licandro, J, Fornasier, S, Daly, M G, Asad, M M Al, Philpott, L, Seabrook, J, Barnouin, O S, Clark, B E, Nolan, M C, Howell, E S, Binzel, R P, Rizk, B, Reuter, D C, Lauretta, D S

“…When rubble-pile asteroid 2008 TC3 impacted Earth on October 7, 2008, the recovered rock fragments indicated that such asteroids can contain exogenic material…”
Get full text

The Stepwise Reduction of Multiyear Sea Ice Area in the Arctic Ocean Since 1980 by Babb, D. G., Galley, R. J., Kirillov, S., Landy, J. C., Howell, S. E. L., Stroeve, J. C., Meier, W., Ehn, J. K., Barber, D. G.

“…Abstract The loss of multiyear sea ice (MYI) in the Arctic Ocean is a significant change that affects all facets of the Arctic environment. Using a Lagrangian…”
Get full text

A Comparison of Arctic Ocean Sea Ice Export Between Nares Strait and the Canadian Arctic Archipelago by Howell, S. E. L., Babb, D. G., Landy, J. C., Moore, G. W. K., Montpetit, B., Brady, M.

“…Nares Strait and the channels of the Canadian Arctic Archipelago (CAA) act as conduits for sea ice export from the Arctic Ocean but have never been directly…”
Get full text

Photometry of Particles Ejected From Active Asteroid (101955) Bennu by Hergenrother, C. W., Maleszewski, C., Li, J.‐Y., Pajola, M., Chesley, S. R., French, A. S., Davis, A. B., Pelgrift, J. Y., Leonard, J. M., Shelly, F., Liounis, A. J., Becker, K., Balram‐Knutson, S. S., Garcia, R., Kareta, T. R., Adam, C., Alkiek, K., Bos, B. J., Brozović, M., Burke, K. N., Christensen, E., Clark, B. E., DellaGiustina, D. N., Drouet d'Aubigny, C., Farnocchia, D., Howell, E. S., Jacobson, R. A., Kidd, J. N., Lessac‐Chenen, E. J., Melikyan, R., Nolan, M. C., Park, R. S., Selznick, S., Rizk, B., Lauretta, D. S.

“…Near‐Earth asteroid (101955) Bennu is an active asteroid experiencing mass loss in the form of ejection events emitting up to hundreds of millimeter‐ to…”
Get full text

Integrated pan-Arctic melt onset detection from satellite active and passive microwave measurements, 2000-2009 by Wang, L., Wolken, G. J., Sharp, M. J., Howell, S. E. L., Derksen, C., Brown, R. D., Markus, T., Cole, J.

“…An integrated pan‐Arctic melt onset data set is generated for the first time by combining estimates derived from active and passive microwave satellite data…”
Get full text