Cooperative Institute for Research in Environmental Sciences

John J. Cassano

John J. Cassano

Research Interests

My research group studies the weather and climate of the polar regions to better understand the processes that link the atmosphere to the underlying ocean, sea ice, ice sheet, and land surfaces. We use in-situ autonomous observations, from automatic weather stations and unmanned aerial vehicles, satellite and reanalysis data, and numerical weather prediction and climate models in our research. We are synthesizing our understanding of polar climate processes through the development of a Regional Arctic System Model, which provides a framework for exploring linkages between the components of the polar climate system.

Current Research

Observing the Antarctic atmosphere with unmanned aerial vehicles (UAVs)

My research group has been using unmanned aerial vehicles (UAVs) to study the Antarctic atmosphere since 2009. In 2009 and 2012, we flew relatively large (15 kilograms) Aerosonde UAVs to study air-sea coupling at Terra Nova Bay in the western Ross Sea, making the first in-situ wintertime measurements in this climatically important area. These UAVs allowed us to conduct missions of up to 19-hours duration that covered 1,000-plus kilometers but required a six-person field team of engineers, pilots, and scientists and a dedicated runway for the UAV flight operations.

Starting in 2012, our group began using a small and inexpensive UAV known as the small unmanned meteorological observer (SUMO) (see photo). This UAV is based on a commercially available model-remote-control airplane, weighs less than 0.6 kilograms, and has a wingspan of 0.8 meter. Unlike the larger Aerosonde UAVs, this UAV can be operated by a field team of just two scientists and requires no dedicated facilities other than a laptop computer and a power supply to charge the UAV batteries, making it ideal for use at remote field camps.

We have deployed SUMO UAVs to observe the Antarctic atmosphere during five field campaigns that have taken place near McMurdo Station, over the Ross Ice Shelf, in the complex and ice-free terrain of the Wright Valley in the Transantarctic Mountains, and from the research ice breaker the Nathaniel B. Palmer in the Ross Sea. These campaigns have taken place in all four seasons, with our winter campaigns provide unique data. These observations are providing us with new insights into the behavior of the atmosphere and its coupling to the Antarctic surface.

During these field campaigns we conduct SUMO flights as often as hourly to document the time evolution of the boundary layer. We use these data to determine the physical processes responsible for boundary layer evolution, estimate the amount of heat exchanged between the atmosphere and the ice sheet surface, and evaluate forecasts from numerical weather prediction models. During our field campaign, I maintained a very popular blog on the CIRES website (http://cires.colorado.edu/blogs/antarcticuavs/) that described life and science in Antarctica.



SUMO UAV and 30 m instrumented tower on the Ross Ice Shelf, Antarctica. Photo credit: John Cassano/CIRES/CU Boulder

SUMO UAV flying over the ice free Wright Valley in the Transantarctic Mountains.

View Publications

  • Akperov, M; Rinke, A; Mokhov, II; Matthes, H; Semenov, VA; Adakudlu, M; Cassano, J; Christensen, JH; Dembitskaya, MA; Dethloff, K; Fettweis, X; Glisan, J; Gutjahr, O; Heinemann, G; Koenigk, T; Koldunov, NV; Laprise, R; Mottram, R; Nikiema, O; Scinocca, JF; Sein, D; Sobolowski, S; Winger, K; Zhang, WX (2018), Cyclone Activity in the Arctic From an Ensemble of Regional Climate Models (Arctic CORDEX). J. Geophys. Res.-Atmos. Version: 1 123 (5) 2537-2554, issn: 2169-897X, ids: GA6IS, doi: 10.1002/2017JD027703
  • Cassano, EN; Cassano, JJ; Seefeldt, MW; Gutowski, WJ; Glisan, JM (2017), Synoptic conditions during summertime temperature extremes in Alaska. Int. J. Climatol. Version: 1 37 (9) 3694-3713, issn: 0899-8418, ids: EZ6UP, doi: 10.1002/joc.4949
  • Koyama, T, J Stroeve, J Cassano and A Crawford (2017), Sea Ice Loss and Arctic Cyclone Activity from 1979 to 2014. J. Clim. Version: 1 30 (12) 4735-4754, issn: 0894-8755, ids: EW3FB, doi: 10.1175/JCLI-D-16-0542.1
  • Nigro, MA; Cassano, JJ; Wille, J; Bromwich, DH; Lazzara, MA (2017), A Self-Organizing-Map-Based Evaluation of the Antarctic Mesoscale Prediction System Using Observations from a 30-m Instrumented Tower on the Ross Ice Shelf, Antarctica. Weather Forecast. Version: 1 32 (1) 223-242, issn: 0882-8156, ids: EM8JN, doi: 10.1175/WAF-D-16-0084.1
  • Wille, JD; Bromwich, DH; Cassano, JJ; Nigro, MA; Mateling, ME; Lazzara, MA (2017), Evaluation of the AMPS Boundary Layer Simulations on the Ross Ice Shelf, Antarctica, with Unmanned Aircraft Observations. J. Appl. Meteorol. Climatol. Version: 1 56 (8) 2239-2258, issn: 1558-8424, ids: FD6ZD, doi: 10.1175/JAMC-D-16-0339.1
  • DuVivier, AK; Cassano, JJ; Greco, S; Emmitt, GD (2017), A Case Study of Observed and Modeled Barrier Flow in the Denmark Strait in May 2015. Mon. Weather Rev. Version: 1 145 (6) 2385-2404, issn: 0027-0644, ids: EW5VG, doi: 10.1175/MWR-D-16-0386.1
  • Cassano, JJ; DuVivier, A; Roberts, A; Hughes, M; Seefeldt, M; Brunke, M; Craig, A; Fisel, B; Gutowski, W; Hamman, J; Higgins, M; Maslowski, W; Nijssen, B; Osinski, R; Zeng, XB (2017), Development of the Regional Arctic System Model (RASM): Near-Surface Atmospheric Climate Sensitivity. J. Clim. Version: 1 30 (15) 5729-5753, issn: 0894-8755, ids: FA5GG, doi: 10.1175/JCLI-D-15-0775.1
  • Cassano, EN; Cassano, JJ (2017), Atmospheric response to anomalous autumn surface forcing in the Arctic Basin. J. Geophys. Res.-Atmos. Version: 1 122 (17) 9011-9023, issn: 2169-897X, ids: FN9UD, doi: 10.1002/2017JD026765
  • Cassano, JJ; Nigro, MA; Lazzara, MA (2016), Characteristics of the near-surface atmosphere over the Ross Ice Shelf, Antarctica. J. Geophys. Res.-Atmos. Version: 1 121 (7) 3339-3362, issn: 2169-897X, ids: DK7QG, doi: 10.1002/2015JD024383
  • Weber, NJ; Lazzara, MA; Keller, LM; Cassano, JJ (2016), The Extreme Wind Events in the Ross Island Region of Antarctica. Weather Forecast. Version: 1 31 (3) 985-1000, issn: 0882-8156, ids: DP5HU, doi: 10.1175/WAF-D-15-0125.1
  • Cassano, JJ; Seefeldt, MW; Palo, S; Knuth, SL; Bradley, AC; Herrman, PD; Kernebone, PA; Logan, NJ (2016), Observations of the atmosphere and surface state over Terra Nova Bay, Antarctica, using unmanned aerial systems. Earth Syst. Sci. Data Version: 1 8 (1) 115-126, issn: 1866-3508, ids: DP0VB, doi: 10.5194/essd-8-115-2016
  • Mills, CM; Cassano, JJ; Cassano, EN (2016), Midlatitude atmospheric responses to Arctic sensible heat flux anomalies in Community Climate Model, Version 4. Geophys. Res. Lett. Version: 1 43 (23) 12270-12277, issn: 0094-8276, ids: EI5DU, doi: 10.1002/2016GL071356
  • Glisan, JM; Gutowski, WJ; Cassano, JJ; Cassano, EN; Seefeldt, MW (2016), Analysis of WRF extreme daily precipitation over Alaska using self-organizing maps. J. Geophys. Res.-Atmos. Version: 1 121 (13) 7746-7761, issn: 2169-897X, ids: DS4DB, doi: 10.1002/2016JD024822
  • Hamman, J, B Nijssen, M Brunke, J Cassano, A Craig, A DuVivier, M Hughes, DP Lettenmaier, W Maslowski, R Osinski, A Roberts and XB Zeng (2016), Land Surface Climate in the Regional Arctic System Model. J. Clim. Version: 1 29 (18) 6543-6562, issn: 0894-8755, ids: DW7JZ, doi: 10.1175/JCLI-D-15-0415.1
  • DuVivier, AK; Cassano, JJ; Craig, A; Hamman, J; Maslowski, W; Nijssen, B; Osinski, R; Roberts, A (2016), Winter Atmospheric Buoyancy Forcing and Oceanic Response during Strong Wind Events around Southeastern Greenland in the Regional Arctic System Model (RASM) for 1990-2010. J. Clim. Version: 1 29 (3) 975-994, issn: 0894-8755, ids: DC5SA, doi: 10.1175/JCLI-D-15-0592.1
  • Wille, JD; Bromwich, DH; Nigro, MA; Cassano, JJ; Mateling, M; Lazzara, MA; Wang, SH (2016), Evaluation of the AMPS Boundary Layer Simulations on the Ross Ice Shelf with Tower Observations. J. Appl. Meteorol. Climatol. Version: 1 55 (11) 2349-2367, issn: 1558-8424, ids: EE8HR, doi: 10.1175/JAMC-D-16-0032.1
  • Fraser, AD; Nigro, MA; Ligtenberg, SRM; Legresy, B; Inoue, M; Cassano, JJ; Munneke, PK; Lenaerts, JTM; Young, NW; Treverrow, A; Van Den Broeke, M; Enomot, H (2016), Drivers of ASCAT C band backscatter variability in the dry snow zone of Antarctica. J. Glaciol. Version: 1 62 (231) 170-184, issn: 0022-1430, ids: DN1PR, doi: 10.1017/jog.2016.29
  • Cassano, JJ; Cassano, EN; Seefeldt, MW; Gutowski, WJ; Glisan, JM (2016), Synoptic conditions during wintertime temperature extremes in Alaska. J. Geophys. Res.-Atmos. Version: 1 121 (7) 3241-3262, issn: 2169-897X, ids: DK7QG, doi: 10.1002/2015JD024404
  • Kennicutt, MC, YD Kim, M Rogan-Finnemore, S Anandakrishnan, SL Chown, S Colwell, D Cowan, C Escutia, Y Frenot, J Hall, D Liggett, AJ Mcdonald, U Nixdorf, MJ Siegert, J Storey, A Wahlin, A Weatherwax, GS Wilson, T Wilson, R Wooding, S Ackley, N Biebow, D Blankenship, S Bo, J Baeseman, CA Cardenas, J Cassano, C Danhong, J Danobeitia, J Francis, J Guldahl, G Hashida, LJ Corbalan, A Klepikov, J Lee, M Leppe, F Lijun, J Lopez-Martinez, M Memolli, Y Motoyoshi, RM Bueno, J Negrete, MAO Cardenes, MP Silva, S Ramos-Garcia, H Sala, H Shin, X Shijie, K Shiraishi, T Stockings, S Trotter, DG Vaughan, JVD De Menezes, V Vlasich, Q Weijia, JG Winther, H Miller, S Rintoul and H Yang (2016), Delivering 21st century Antarctic and Southern Ocean science. Antarct. Sci. Version: 1 28 (6) 407-423, issn: 0954-1020, ids: EC2US, doi: 10.1017/S0954102016000481
  • Costanza, CA; Lazzara, MA; Keller, LM; Cassano, JJ (2016), The surface climatology of the Ross Ice Shelf Antarctica. Int. J. Climatol. Version: 1 36 (15) 4929-4941, issn: 0899-8418, ids: EE0ZU, doi: 10.1002/joc.4681, PubMed ID: 28008213
  • McDonald, AJ; Cassano, JJ; Jolly, B; Parsons, S; Schuddeboom, A (2016), An automated satellite cloud classification scheme using self-organizing maps: Alternative ISCCP weather states. J. Geophys. Res.-Atmos. Version: 1 121 (21) 13009-13030, issn: 2169-897X, ids: ED6IZ, doi: 10.1002/2016JD025199
  • Jolly, B, AJ Mcdonald, JHJ Coggins, P Zawar-Reza, J Cassano, M Lazzara, G Graham, G Plank, O Petterson and E Dale (2016), A Validation of the Antarctic Mesoscale Prediction System Using Self-Organizing Maps and High-Density Observations from SNOWWEB. Mon. Weather Rev. Version: 1 144 (9) 3181-3200, issn: 0027-0644, ids: DW8RN, doi: 10.1175/MWR-D-15-0447.1
  • DuVivier, AK; Cassano, JJ (2016), Comparison of wintertime mesoscale winds over the ocean around southeastern Greenland in WRF and ERA-Interim. Clim. Dyn. Version: 1 46 (8-Jul) 2197-2211, issn: 0930-7575, ids: DI4AR, doi: 10.1007/s00382-015-2697-8
  • Cassano, EN; Glisan, JM; Cassano, JJ; Gutowski, WJ; Seefeldt, MW (2015), Self-organizing map analysis of widespread temperature extremes in Alaska and Canada. Clim. Res. Version: 1 62 (3) 199-218, issn: 0936-577X, ids: CC9CS, doi: 10.3354/cr01274
  • Roberts, A, A Craig, W Maslowski, R Osinski, A DuVivier, M Hughes, B Nijssen, J Cassano and M Brunke (2015), Simulating transient ice-ocean Ekman transport in the Regional Arctic System Model and Community Earth System Model. Ann. Glaciol. Version: 1 56 (69) 211-228, issn: 0260-3055, ids: CT8RE, doi: 10.3189/2015AoG69A760
  • DuVivier, AK; Cassano, JJ (2015), Exploration of turbulent heat fluxes and wind stress curl in WRF and ERA-Interim during wintertime mesoscale wind events around southeastern Greenland. J. Geophys. Res.-Atmos. Version: 1 120 (9) 3593-3609, issn: 2169-897X, ids: CJ8IY, doi: 10.1002/2014JD022991
  • Hughes, M; Cassano, JJ (2015), The climatological distribution of extreme Arctic winds and implications for ocean and sea ice processes. J. Geophys. Res.-Atmos. Version: 1 120 (15) 7358-7377, issn: 2169-897X, ids: CQ3KV, doi: 10.1002/2015JD023189
  • Cassano, EN; Cassano, JJ; Higgins, ME; Serreze, MC (2014), Atmospheric impacts of an Arctic sea ice minimum as seen in the Community Atmosphere Model. Int. J. Climatol. Version: 1 34 (3) 766-779, issn: 0899-8418, ids: AB9EK, doi: 10.1002/joc.3723
  • Cassano, JJ (2014), Weather Bike A Bicycle-Based Weather Station for Observing Local Temperature Variations. Bull. Amer. Meteorol. Soc. Version: 1 95 (2) 205-209, issn: 0003-0007, ids: AE1JK, doi: 10.1175/BAMS-D-13-00044.1
  • Cassano, JJ (2014), Observations of atmospheric boundary layer temperature profiles with a small unmanned aerial vehicle. Antarct. Sci. Version: 1 26 (2) 205-213, issn: 0954-1020, ids: AL8GH, doi: 10.1017/S0954102013000539
  • Nigro, MA; Cassano, JJ (2014), Analysis of the Ross Ice Shelf Airstream Forcing Mechanisms Using Self-Organizing Maps. Mon. Weather Rev. Version: 1 142 (12) 4719-4734, issn: 0027-0644, ids: AU8QE, doi: 10.1175/MWR-D-14-00077.1
  • Knuth, SL; Cassano, JJ (2014), Estimating Sensible and Latent Heat Fluxes Using the Integral Method from in situ Aircraft Measurements. J. Atmos. Ocean. Technol. Version: 1 31 (9) 1964-1981, issn: 0739-0572, ids: AO4WM, doi: 10.1175/JTECH-D-14-00008.1
  • Nigro, MA; Cassano, JJ (2014), Identification of Surface Wind Patterns over the Ross Ice Shelf, Antarctica, Using Self-Organizing Maps. Mon. Weather Rev. Version: 1 142 (7) 2361-2378, issn: 0027-0644, ids: AJ8NV, doi: 10.1175/MWR-D-13-00382.1
  • DuVivier, AK; Cassano, JJ (2013), Evaluation of WRF Model Resolution on Simulated Mesoscale Winds and Surface Fluxes near Greenland. Mon. Weather Rev. Version: 1 141 (3) 941-963, issn: 0027-0644, ids: 105BM, doi: 10.1175/MWR-D-12-00091.1
  • Knuth, SL; Cassano, JJ; Maslanik, JA; Herrmann, PD; Kernebone, PA; Crocker, RI; Logan, NJ (2013), Unmanned aircraft system measurements of the atmospheric boundary layer over Terra Nova Bay, Antarctica. Earth Syst. Sci. Data Version: 1 5 (1) 57-69, issn: 1866-3508, ids: V39MP, doi: 10.5194/essd-5-57-2013
  • Moore, GWK; Renfrew, IA; Cassano, JJ (2013), Greenland plateau jets. Tellus Ser. A-Dyn. Meteorol. Oceanol. Version: 1 65 , Art. No. 17468, issn: 0280-6495, ids: 196HF, doi: 10.3402/tellusa.v65i0.17468
  • Nolan, M; Cassano, EN; Cassano, JJ (2013), Synoptic climatology and recent climate trends at Lake Elgygytgyn. Clim. Past. Version: 1 9 (3) 1271-1286, issn: 1814-9324, ids: 197OE, doi: 10.5194/cp-9-1271-2013
  • Glisan, JM; Gutowski, WJ; Cassano, JJ; Higgins, ME (2013), Effects of Spectral Nudging in WRF on Arctic Temperature and Precipitation Simulations. J. Clim. Version: 1 26 (12) 3985-3999, issn: 0894-8755, ids: 170WI, doi: 10.1175/JCLI-D-12-00318.1
  • Porter, DF; Cassano, JJ; Serreze, MC (2012), Local and large-scale atmospheric responses to reduced Arctic sea ice and ocean warming in the WRF model. J. Geophys. Res.-Atmos. Version: 1 117 , Art. No. D11115, issn: 2169-897X, ids: 959WF, doi: 10.1029/2011JD016969
  • Higgins, ME; Cassano, JJ (2012), Northern Alaskan land surface response to reduced Arctic sea ice extent. Clim. Dyn. Version: 1 38 (10-Sep) 2099-2113, issn: 0930-7575, ids: 934ML, doi: 10.1007/s00382-011-1095-0
  • Lazzara, MA; Weidner, GA; Keller, LM; Thom, JE; Cassano, JJ (2012), ANTARCTIC AUTOMATIC WEATHER STATION PROGRAM 30 Years of Polar Observations. Bull. Amer. Meteorol. Soc. Version: 1 93 (10) 1519-+, issn: 0003-0007, ids: 024HU, doi: 10.1175/BAMS-D-11-00015.1
  • Nigro, MA; Cassano, JJ; Lazzara, MA; Keller, LM (2012), Case Study of a Barrier Wind Corner Jet off the Coast of the Prince Olav Mountains, Antarctica. Mon. Weather Rev. Version: 1 140 (7) 2044-2063, issn: 0027-0644, ids: 970VF, doi: 10.1175/MWR-D-11-00261.1
  • Powers, JG; Manning, KW; Bromwich, DH; Cassano, JJ; Cayette, AM (2012), A DECADE OF ANTARCTIC SCIENCE SUPPORT THROUGH AMPS. Bull. Amer. Meteorol. Soc. Version: 1 93 (11) 1699-1712, issn: 0003-0007, ids: 039AD, doi: 10.1175/BAMS-D-11-00186.1
  • Seefeldt, MW; Cassano, JJ (2012), A description of the Ross Ice Shelf air stream (RAS) through the use of self-organizing maps (SOMs). J. Geophys. Res.-Atmos. Version: 1 117 , Art. No. D09112, issn: 2169-897X, ids: 941ZJ, doi: 10.1029/2011JD016857
  • Nigro, MA; Cassano, JJ; Knuth, SL (2012), Evaluation of Antarctic Mesoscale Prediction System (AMPS) cyclone forecasts using infrared satellite imagery. Antarct. Sci. Version: 1 24 (2) 183-192, issn: 0954-1020, ids: 900HU, doi: 10.1017/S0954102011000745
  • Cassano, EN; Cassano, JJ; Nolan, M (2011), Synoptic weather pattern controls on temperature in Alaska. J. Geophys. Res.-Atmos. Version: 1 116 , Art. No. D11108, issn: 2169-897X, ids: 776PM, doi: 10.1029/2010JD015341
  • Cassano, JJ; Higgins, ME; Seefeldt, MW (2011), Performance of the Weather Research and Forecasting Model for Month-Long Pan-Arctic Simulations. Mon. Weather Rev. Version: 1 139 (11) 3469-3488, issn: 0027-0644, ids: 840XP, doi: 10.1175/MWR-D-10-05065.1
  • Bailey, A; Chase, TN; Cassano, JJ; Noone, D (2011), Changing Temperature Inversion Characteristics in the US Southwest and Relationships to Large-Scale Atmospheric Circulation. J. Appl. Meteorol. Climatol. Version: 1 50 (6) 1307-1323, issn: 1558-8424, ids: 786HS, doi: 10.1175/2011JAMC2584.1
  • Knuth, SL; Cassano, JJ (2011), An Analysis of Near-Surface Winds, Air Temperature, and Cyclone Activity in Terra Nova Bay, Antarctica, from 1993 to 2009. J. Appl. Meteorol. Climatol. Version: 1 50 (3) 662-680, issn: 1558-8424, ids: 750PK, doi: 10.1175/2010JAMC2507.1
  • Walsh, JJ; Dieterle, DA; Chen, FR; Lenes, JM; Maslowski, W; Cassano, JJ; Whitledge, TE; Stockwell, D; Flint, M; Sukhanova, IN; Christensen, J (2011), Trophic cascades and future harmful algal blooms within ice-free Arctic Seas north of Bering Strait: A simulation analysis. Prog. Oceanogr. Version: 1 91 (3) 312-343, issn: 0079-6611, ids: 831WD, doi: 10.1016/j.pocean.2011.02.001
  • Fisel, BJ, WJ Gutowski, JM Hobbs and JJ Cassano (2011), Multiregime states of Arctic atmospheric circulation. J. Geophys. Res.-Atmos. Version: 1 116 , Art. No. D20122, issn: 0148-0227, ids: 839AJ, doi: 10.1029/2011JD015790
  • Porter, DF; Cassano, JJ; Serreze, MC (2011), Analysis of the Arctic atmospheric energy budget in WRF: A comparison with reanalyses and satellite observations. J. Geophys. Res.-Atmos. Version: 1 116 , Art. No. D22108, issn: 2169-897X, ids: 851KP, doi: 10.1029/2011JD016622
  • Serreze, MC; Barrett, AP; Cassano, JJ (2011), Circulation and surface controls on the lower tropospheric air temperature field of the Arctic. J. Geophys. Res.-Atmos. Version: 1 116 , Art. No. D07104, issn: 2169-897X, ids: 751WG, doi: 10.1029/2010JD015127
  • Nigro, MA; Cassano, JJ; Seefeldt, MW (2011), A Weather-Pattern-Based Approach to Evaluate the Antarctic Mesoscale Prediction System (AMPS) Forecasts: Comparison to Automatic Weather Station Observations. Weather Forecast. Version: 1 26 (2) 184-198, issn: 0882-8156, ids: 753FU, doi: 10.1175/2010WAF2222444.1
  • Cassano, EN; Cassano, JJ (2010), Synoptic forcing of precipitation in the Mackenzie and Yukon River basins. Int. J. Climatol. Version: 1 30 (5) 658-674, issn: 0899-8418, ids: 592AJ, doi: 10.1002/joc.1926
  • Schuenemann, KC; Cassano, JJ (2010), Changes in synoptic weather patterns and Greenland precipitation in the 20th and 21st centuries: 2. Analysis of 21st century atmospheric changes using self-organizing maps. J. Geophys. Res.-Atmos. Version: 1 115 , Art. No. D05108, issn: 2169-897X, ids: 568BI, doi: 10.1029/2009JD011706
  • Porter, DF; Cassano, JJ; Serreze, MC; Kindig, DN (2010), New estimates of the large-scale Arctic atmospheric energy budget. J. Geophys. Res.-Atmos. Version: 1 115 , Art. No. D08108, issn: 2169-897X, ids: 590UP, doi: 10.1029/2009JD012653
  • Higgins, ME; Cassano, JJ (2010), Response of Arctic 1000 hPa circulation to changes in horizontal resolution and sea ice forcing in the Community Atmospheric Model. J. Geophys. Res.-Atmos. Version: 1 115 , Art. No. D17114, issn: 2169-897X, ids: 652MQ, doi: 10.1029/2009JD013440
  • Schuenemann, KC; Cassano, JJ (2009), Changes in synoptic weather patterns and Greenland precipitation in the 20th and 21st centuries: 1. Evaluation of late 20th century simulations from IPCC models. J. Geophys. Res.-Atmos. Version: 1 114 , Art. No. D20113, issn: 2169-897X, ids: 513IW, doi: 10.1029/2009JD011705
  • Higgins, ME; Cassano, JJ (2009), Impacts of reduced sea ice on winter Arctic atmospheric circulation, precipitation, and temperature. J. Geophys. Res.-Atmos. Version: 1 114 , Art. No. D16107, issn: 2169-897X, ids: 488KY, doi: 10.1029/2009JD011884
  • Finnis, J; Cassano, J; Holland, M; Serreze, M; Uotila, P (2009), Synoptically forced hydroclimatology of major Arctic watersheds in general circulation models; Part 1: the Mackenzie River Basin. Int. J. Climatol. Version: 1 29 (9) 1226-1243, issn: 0899-8418, ids: 471LT, doi: 10.1002/joc.1753
  • Skific, N; Francis, JA; Cassano, JJ (2009), Attribution of Projected Changes in Atmospheric Moisture Transport in the Arctic: A Self-Organizing Map Perspective. J. Clim. Version: 1 22 (15) 4135-4153, issn: 0894-8755, ids: 481JA, doi: 10.1175/2009JCLI2645.1
  • Uotila, P; Pezza, AB; Cassano, JJ; Keay, K; Lynch, AH (2009), A comparison of low pressure system statistics derived from a high-resolution NWP output and three reanalysis products over the Southern Ocean. J. Geophys. Res.-Atmos. Version: 1 114 , Art. No. D17105, issn: 2169-897X, ids: 492EC, doi: 10.1029/2008JD011583
  • Finnis, J; Cassano, JJ; Holland, M; Serreze, MC; Uotila, P (2009), Synoptically forced hydroclimatology of major Arctic watersheds in general circulation models; Part 2: Eurasian watersheds. Int. J. Climatol. Version: 1 29 (9) 1244-1261, issn: 0899-8418, ids: 471LT, doi: 10.1002/joc.1769
  • Schuenemann, KC; Cassano, JJ; Finnis, J (2009), Synoptic Forcing of Precipitation over Greenland: Climatology for 1961-99. J. Hydrometeorol. Version: 1 10 (1) 60-78, issn: 1525-755X, ids: 414GX, doi: 10.1175/2008JHM1014.1
  • Skific, N; Francis, JA; Cassano, JJ (2009), Attribution of Seasonal and Regional Changes in Arctic Moisture Convergence. J. Clim. Version: 1 22 (19) 5115-5134, issn: 0894-8755, ids: 501ZL, doi: 10.1175/2009JCLI2829.1
  • Francis, JA; White, DM; Cassano, JJ; Gutowski, WJ; Hinzman, LD; Holland, MM; Steele, MA; Vorosmarty, CJ (2009), An arctic hydrologic system in transition: Feedbacks and impacts on terrestrial, marine, and human life. J. Geophys. Res.-Biogeosci. Version: 1 114 , Art. No. G04019, issn: 2169-8953, ids: 532AI, doi: 10.1029/2008JG000902
  • Seefeldt, MW; Cassano, JJ (2008), An Analysis of Low-Level Jets in the Greater Ross Ice Shelf Region Based on Numerical Simulations. Mon. Weather Rev. Version: 1 136 (11) 4188-4205, issn: 0027-0644, ids: 371VX, doi: 10.1175/2008MWR2455.1
  • Wyser, K; Jones, CG; Du, P; Girard, E; Willen, U; Cassano, J; Christensen, JH; Curry, JA; Dethloff, K; Haugen, JE; Jacob, D; Koltzow, M; Laprise, R; Lynch, A; Pfeifer, S; Rinke, A; Serreze, M; Shaw, MJ; Tjernstrom, M; Zagar, M (2008), An evaluation of Arctic cloud and radiation processes during the SHEBA year: simulation results from eight Arctic regional climate models. Clim. Dyn. Version: 1 30 (3-Feb) 203-223, issn: 0930-7575, ids: 251VI, doi: 10.1007/s00382-007-0286-1
  • Zhang, K, JS Kimball, EH Hogg, MS Zhao, WC Oechel, JJ Cassano and SW Running (2008), Satellite-based model detection of recent climate-driven changes in northern high-latitude vegetation productivity. J. Geophys. Res.-Biogeosci. Version: 1 113 (G3) , Art. No. G03033, issn: 0148-0227, ids: 348HH, doi: 10.1029/2007JG000621
  • Seefeldt, MW; Cassano, JJ; Parish, TR (2007), Dominant regimes of the Ross Ice Shelf surface wind field during austral autumn 2005. J. Appl. Meteorol. Climatol. Version: 1 46 (11) 1933-1955, issn: 1558-8424, ids: 240ZO, doi: 10.1175/2007JAMC1442.1
  • White, D, L Hinzman, L Alessa, J Cassano, M Chambers, K Falkner, J Francis, WJ Gutowski, M Holland, RM Holmes, H Huntington, D Kane, A Kliskey, C Lee, J McClelland, B Peterson, TS Rupp, F Straneo, M Steele, R Woodgate, D Yang, K Yoshikawa and T Zhang (2007), The arctic freshwater system: Changes and impacts. J. Geophys. Res.-Biogeosci. Version: 1 112 (G4) , Art. No. G04S54, issn: 2169-8953, ids: 235UX, doi: 10.1029/2006JG000353
  • Uotila, P; Lynch, AH; Cassano, JJ; Cullather, RI (2007), Changes in Antarctic net precipitation in the 21st century based on Intergovernmental Panel on Climate Change (IPCC) model scenarios. J. Geophys. Res.-Atmos. Version: 1 112 (D10) , Art. No. D10107, issn: 0148-0227, ids: 172XV, doi: 10.1029/2006JD007482
  • Zhang, K; Kimball, JS; McDonald, KC; Cassano, JJ; Running, SW (2007), Impacts of large-scale oscillations on pan-Arctic terrestrial net primary production. Geophys. Res. Lett. Version: 1 34 (21) , Art. No. L21403, issn: 0094-8276, ids: 230BG, doi: 10.1029/2007GL031605
  • Cassano, JJ; Uotila, P; Lynch, AH; Cassano, EN (2007), Predicted changes in synoptic forcing of net precipitation in large Arctic river basins during the 21st century. J. Geophys. Res.-Biogeosci. Version: 1 112 (G4) , Art. No. G04S49, issn: 2169-8953, ids: 230CI, doi: 10.1029/2006JG000332
  • Zhang, K, JS Kimball, MS Zhao, WC Oechel, J Cassano and SW Running (2007), Sensitivity of pan-Arctic terrestrial net primary productivity simulations to daily surface meteorology from NCEP-NCAR and ERA-40 reanalyses. J. Geophys. Res.-Biogeosci. Version: 1 112 (G1) , Art. No. G01011, issn: 0148-0227, ids: 136DV, doi: 10.1029/2006JG000249
  • Finnis, J; Holland, MM; Serreze, MC; Cassano, JJ (2007), Response of Northern Hemisphere extratropical cyclone activity and associated precipitation to climate change, as represented by the Community Climate System Model. J. Geophys. Res.-Biogeosci. Version: 1 112 (G4) , Art. No. G04S42, issn: 2169-8953, ids: 230CI, doi: 10.1029/2006JG000286
  • Rinke, A; Dethloff, K; Cassano, JJ; Christensen, JH; Curry, JA; Du, P; Girard, E; Haugen, JE; Jacob, D; Jones, CG; Koltzow, M; Laprise, R; Lynch, AH; Pfeifer, S; Serreze, MC; Shaw, MJ; Tjernstrom, M; Wyser, K; Zagar, M (2006), Evaluation of an ensemble of Arctic regional climate models: spatiotemporal fields during the SHEBA year. Clim. Dyn. Version: 1 26 (5) 459-472, issn: 0930-7575, ids: 019VW, doi: 10.1007/s00382-005-0095-3
  • Cassano, EN; Lynch, AH; Cassano, JJ; Koslow, MR (2006), Classification of synoptic patterns in the western Arctic associated with extreme events at Barrow, Alaska, USA. Clim. Res. Version: 1 30 (2) 83-97, issn: 0936-577X, ids: 039CU, doi: 10.3354/cr030083
  • Cassano, JJ; Uotila, P; Lynch, A (2006), Changes in synoptic weather patterns in the polar regions in the twentieth and twenty-first centuries, Part 1: Arctic. Int. J. Climatol. Version: 1 26 (8) 1027-1049, issn: 0899-8418, ids: 059BY, doi: 10.1002/joc.1306
  • Lynch, A; Uotila, P; Cassano, JJ (2006), Changes in synoptic weather patterns in the polar regions in the twentieth and twenty-first centuries, part 2: Antarctic. Int. J. Climatol. Version: 1 26 (9) 1181-1199, issn: 0899-8418, ids: 063OQ, doi: 10.1002/joc.1305
  • Parish, TR; Cassano, JJ; Seefeldt, MW (2006), Characteristics of the Ross Ice Shelf air stream as depicted in Antarctic Mesoscale Prediction System simulations. J. Geophys. Res.-Atmos. Version: 1 111 (D12) , Art. No. D12109, issn: 2169-897X, ids: 062IX, doi: 10.1029/2005JD006185
  • Tjernstrom, M; Zagar, M; Svensson, G; Cassano, JJ; Pfeifer, S; Rinke, A; Wyser, K; Dethloff, K; Jones, C; Semmler, T; Shaw, M (2005), Modelling the arctic boundary layer: An evaluation of six arcmip regional-scale models using data from the Sheba project. Bound.-Layer Meteor. Version: 1 117 (2) 337-381, issn: 0006-8314, ids: 985HI, doi: 10.1007/s10546-004-7954-z
  • Pavolonis, MJ; Key, JR; Cassano, JJ (2004), A study of the Antarctic surface energy budget using a Polar regional atmospheric model forced with satellite-derived cloud properties. Mon. Weather Rev. Version: 1 132 (2) 654-661, issn: 0027-0644, ids: 773HV, doi: 10.1175/1520-0493(2004)132<0654:ASOTAS>2.0.CO;2
  • Bromwich, DH, AJ Monaghan, JG Powers, JJ Cassano, HL Wei, YH Kuo and A Pellegrini (2003), Antarctic Mesoscale Prediction System (AMPS): A case study from the 2000-01 field season. Mon. Weather Rev. Version: 1 131 (2) 412-434, issn: 0027-0644, ids: 636RR, doi: 10.1175/1520-0493(2003)131<0412%3AAMPSAA>2.0.CO%3B2
  • Guo, ZC, DH Bromwich and JJ Cassano (2003), Evaluation of Polar MM5 simulations of Antarctic atmospheric circulation. Mon. Weather Rev. Version: 1 131 (2) 384-411, issn: 0027-0644, ids: 636RR, doi: 10.1175/1520-0493(2003)131<0384%3AEOPMSO>2.0.CO%3B2
  • Parish, TR; Cassano, JJ (2003), Diagnosis of the katabatic wind influence on the wintertime Antarctic surface wind field from numerical simulations. Mon. Weather Rev. Version: 1 131 (6) 1128-1139, issn: 0027-0644, ids: 674VC, doi: 10.1175/1520-0493(2003)131<1128:DOTKWI>2.0.CO;2
  • Lynch, AH; Cassano, EN; Cassano, JJ; Lestak, LR (2003), Case studies of high wind events in Barrow, Alaska: Climatological context and development processes. Mon. Weather Rev. Version: 1 131 (4) 719-732, issn: 0027-0644, ids: 658JM, doi: 10.1175/1520-0493(2003)131<0719:CSOHWE>2.0.CO;2
  • Parish, TR; Cassano, JJ (2003), The role of katabatic winds on the Antarctic surface wind regime. Mon. Weather Rev. Version: 1 131 (2) 317-333, issn: 0027-0644, ids: 636RR, doi: 10.1175/1520-0493(2003)131<0317:TROKWO>2.0.CO;2
  • Cassano, JJ, TR Parish and JC King (2001), Evaluation of turbulent surface flux parameterizations for the stable surface layer over Halley, Antarctica. Mon. Weather Rev. Version: 1 129 (1) 26-46, issn: 0027-0644, ids: 393MZ, doi: 10.1175/1520-0493(2001)129<0026%3AEOTSFP>2.0.CO%3B2
  • Cassano, JJ; Box, JE; Bromwich, DH; Li, L; Steffen, K (2001), Evaluation of polar MM5 simulations of Greenlands atmospheric circulation. J. Geophys. Res.-Atmos. Version: 1 106 (D24) 33867-33889, issn: 2169-897X, ids: 522DE, doi: 10.1029/2001JD900044
  • Bromwich, DH; Cassano, JJ; Klein, T; Heinemann, G; Hines, KM; Steffen, K; Box, JE (2001), Mesoscale modeling of katabatic winds over Greenland with the Polar MM5. Mon. Weather Rev. Version: 1 129 (9) 2290-2309, issn: 0027-0644, ids: 465XN, doi: 10.1175/1520-0493(2001)129<2290:MMOKWO>2.0.CO;2
  • Parish, TR and JJ Cassano (2001), Forcing of the wintertime antarctic boundary layer winds from the NCEP-NCAR global reanalysis. J. Appl. Meteorol. Version: 1 40 (4) 810-821, issn: 0894-8763, ids: 420TV, doi: 10.1175/1520-0450(2001)040<0810:FOTWAB>2.0.CO;2
  • Klein, T, G Heinemann, DH Bromwich, JJ Cassano and KM Hines (2001), Mesoscale modeling of katabatic winds over Greenland and comparisons with AWS and aircraft data. Meteorol. Atmos. Phys. Version: 1 78 (2-Jan) 115-132, issn: 0177-7971, ids: 476VY, doi: 10.1007/s007030170010
  • Cassano, JJ and TR Parish (2000), An analysis of the nonhydrostatic dynamics in numerically simulated Antarctic katabatic flows. J. Atmos. Sci. Version: 1 57 (6) 891-898, issn: 0022-4928, ids: 291FR, doi: 10.1175/1520-0469(2000)057<0891:AAOTND>2.0.CO;2