NASA researchers, including several from NASA's Jet Propulsion Laboratory, Pasadena, Calif., will present findings on a variety of Earth science topics at the 87th American Meteorological Society Annual Meeting, which runs Jan. 14 through Jan. 18, at the H.B. Gonzalez Convention Center, 200 E. Market Street, San Antonio, Texas.

Following are noteworthy NASA presentations, in chronological order:

NASA-African Monsoon Multidisciplinary Analyses (Namma-06) Senegal Precipitation Measurements
Time: Monday, Jan. 15, 11:30 a.m. PST (1:30 p.m. CST), Room 209
Session: 1.7
This presentation will highlight findings from a field campaign off the African coast to unlock the mysteries of tropical cyclone formation.

Will The Real Los Angeles Stand Up: Impacts Of A Weather Station Relocation On Climatic Records (And Record Weather)
Time: Monday, Jan. 15, 12:30 p.m. PST (2:30 p.m. CST), Exhibit Hall C
Session: JP1.1 (poster session)
In 1999, the National Weather Service moved the official downtown Los Angeles weather station to the University of Southern California. Results of this comparative study of data from the previous and new stations show the move resulted in a significant decrease in measured temperatures and precipitation.

Town Hall Meeting: NASA Earth Science Division
Time: Monday, Jan. 15, 4:30 p.m. PST (6:30 p.m. CST), Room 212A
NASA managers will provide an update on current and planned activities in NASA's Earth science programs and engage in dialogue with the American Meteorology Society membership.

The Journey Of Hurricane Isabel As Tracked By NASA Earth Observing Systems Instruments
Time: Tuesday, Jan. 16, 11:30 a.m. PST (1:30 p.m. CST), Room 217A
Session: 4B.13
In this session, data from the Atmospheric Infrared Sounder instrument on NASA's Aqua spacecraft are used to explore the journey of Hurricane Isabel in 2003. Results show that a mass of very dry, dusty air that forms over the Sahara Desert may have delayed the hurricane's formation by a few days.

Is Rainfall Increasing In The Tropics?
Time: Tuesday, Jan. 16, 11:30 a.m. PST (1:30 p.m. CST), Room 214B
Session: 4A.1
Tropical rainfall variations and possible long-term changes are examined using multi-year data and satellites, including NASA's Tropical Rainfall Measuring Mission. This presentation will focus on techniques used to determine the influence of volcanic events, climate events like El Nino and other variables on rainfall patterns over land and ocean.

Diurnal, Synoptic, Subseasonal And Interannual Acceleration Of The Global Hydrological Cycle In Ipcc Ar4 Model Simulations
Time: Tuesday, Jan. 16, 11:30 a.m. PST (1:30 p.m. CST), Room 214B
Session: 4A.6
This talk will present results from ongoing research to assess how much the global water cycle is projected to speed up under future climate change conditions. The authors analyze computer simulations to evaluate changes projected in precipitation, evaporation and precipitable water on various time scales.

Analysis Of Hurricanes Using Unmanned Aircraft Systems And Cosmic Satellite Data
Time: Wednesday, Jan. 17, 6:30 a.m. PST (8:30 a.m. CST), Room 212B
Session: 5.9
Researchers will discuss a new constellation of satellites, called Constellation Observing System for Meteorology, Ionosphere, and Climate (Cosmic), and unmanned aircraft systems that can observe critical regions of the globe not accessible by other platforms.

The Impact Of Large-Scale Climate Variability On Weather
Time: Wednesday, Jan. 17, 6:30 a.m. PST (8:30 a.m. CST), Room 214D
Session: 2.3
Scientists present findings from recent experiments using computer climate models to examine the link between extreme weather and modes of large-scale climate variability. The talk will focus on extreme winter storms over the United States and how they are influenced by the El Nino-Southern Oscillation and other climate variables.

Predictability And Forecast Skill Of The Madden-Julian Oscillation
Time: Wednesday, Jan. 17, 6:30 a.m. PST (8:30 a.m. CST), Room 214D
Session: 2.6
Researchers have begun intensive efforts to improve modeling capabilities of large-scale, sub-seasonal recurrent patterns in the tropics and mid-latitudes. The presentation will examine the predictability and forecast skill analysis of the Madden-Julian Oscillation, a mode of climate variability in the Pacific that plays a major role in global weather patterns.

The Morphology Of Eyewall Lightning Outbreaks In Two Category Five Hurricanes
Time: Wednesday, Jan. 17, 12:30 p.m. PST (2:30 p.m. CST), Room 212B
Session: P2.4 (poster session)
Using data from NASA's Tropical Rainfall Measuring Mission and other sources, researchers analyze the relationship between eyewall lightning and hurricane intensity.

Assessment Of Climate Variability And Change In The New York Metropolitan Region
Time: Wednesday, Jan. 17, 2:00 p.m. PST (4:00 p.m. CST), Room 214D
Session: 5.2
Climate change presents significant risk-management challenges to the New York metropolitan region. Researchers will present findings about future climate scenarios that illustrate how higher temperatures, rising sea levels and precipitation changes will influence the region's coastal infrastructure and water supply.

Aerosol Retrievals Using Airborne Lidar And Modis Measurements
Time: Thursday, Jan. 18, 11:30 a.m. PST (1:30 p.m. CST), Room 214D
Session: 6.13
This presentation will discuss recent field research missions involving data from NASA airborne lidar and the Moderate Resolution Imaging Spectrometer that has led to new discoveries about aerosols.

Aerosol-Climate Research: The Kaufman-Modis Era
Time: Thursday, Jan. 18, 11:30 a.m. PST (1:30 p.m. CST), Room 209
Session: 6.1
Innovative research insights and intellectual leadership by the late Yoram Kaufman, combined with data from NASA's Moderate Resolution Imaging Spectrometer, are giving scientists a revolutionary understanding of the role tiny dust particles play on the global climate.

Aircraft Weather Mitigation For The Next Generation Air Transportation System
Time: Thursday, Jan. 18, 11:30 a.m. PST (1:30 p.m. CST), Room 217A
Session: 9B.8
This presentation on NASA's role in improving aircraft weather mitigation will address concerns such as obstructions to visibility, ice accumulation and operability and serviceability due to atmospheric particulates.

JPL is managed for NASA by the California Institute of Technology in Pasadena.

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