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1. NARSTO 1998 Model-Intercomparison Study Verification Data: NARSTO-Northeast 1995 Surface Ozone, NO, and NOx Langley Data Center Data Set [NARSTO_NE_MODEL]
The NARSTO_NE_MODEL data set supports the NARSTO Model Intercomparison activity described in the report of a workshop that was held in Washington, DC on May 27-28, 1998. The intercomparison activity ...


2. NARSTO EPA_SS_HOUSTON Ammonia and Nitric Acid Data [NARSTO_EPA_SS_HT_NH3_HNO3]
The NARSTO_EPA_SS_HOUSTON_NH3_HNO3_DATA contains 24-hour integrated measurements of ammonia and nitric acid collected during September 30, 2000 through May 22, 2001 at the HRM Site 3, Aldine, and ...


3. NARSTO EPA_SS_HOUSTON Differential Mobility Analyzer Data [NARSTO_EPA_SS_HT_DMA]
The NARSTO_EPA_SS_HOUSTON_DMA_DATA measurements consist of aerosol size distributions and number concentrations collected in Houston, Texas, beginning in August 2000 and ending in November 2001. Data ...


4. NARSTO EPA_SS_HOUSTON PM2.5 Nitrate, Sulfate, and Carbon Data [NARSTO_EPA_SS_HT_NO3_SO4_C]
The NARSTO_EPA_SS_HOUSTON_NO3_SO4_C_DATA files contain continuous measurements of PM2.5 nitrate, PM2.5 sulfate, and PM2.5 carbon collected during August 12, 2000 through November 5, 2001 at the Aldine, ...


5. NARSTO EPA_SS_HOUSTON Rapid Single-Particle Mass Spectrometer Data [NARSTO_EPA_SS_HT_RSMS]
The NARSTO_EPA_SS_HOUSTON_RAPID_SPMS_DATA contain individual aerosol particles which were sized and analyzed using a Rapid Single-particle Mass Spectrometer (RSMS) in Houston during the summer of ...


6. NARSTO EPA_SS_HOUSTON TEXAQS2000 DOE G-1 Air Chemistry, Aerosol, and Met Data [NARSTO_EPA_SS_HT_DOE_G-1]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_DOE_G-1_DATA were collected from the DOE G-1 Research Aircraft Facility during the Texas 2000 Air Quality Study. Twenty research flights were made from August ...


7. NARSTO EPA_SS_HOUSTON TEXAQS2000 Formaldehyde and Hydrogen Peroxide Data [NARSTO_EPA_SS_HT_HCHO_H2O2]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_HCHO_H2O2_DATA data set contains continuous formaldehyde (HCHO) and hydrogen peroxide (H2O2) measurements collected in August - September 2000 during the Texas ...


8. NARSTO EPA_SS_HOUSTON TEXAQS2000 PM2.5 Organic Speciation Data [NARSTO_EPA_SS_HT_PM25_ORG]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_PM25_ORG_DATA file contains 24-hour integrated organic speciation of fine particulate matter (PM2.5) collected August 15, 2000 through September 30, 2000 at the ...


9. NARSTO EPA_SS_HOUSTON TEXAQS2000 Particulate Matter FTIR Composition [NARSTO_EPA_SS_HT_PM_FTIR]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_PM_FTIR measurement data consist of absolute absorbance areas for organonitrates, sulfate, aliphatic carbon and carbonyl compounds for size segregated particulate ...


10. NARSTO EPA_SS_HOUSTON TEXAQS2000 Size-specific PM Mass Concentration Data [NARSTO_EPA_SS_HT_PM_SIZE_MASS]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_PM_SIZE_MASS file reports size segregated mass particulate data collected with a MOUDI sampler during the Texas Air Quality Study 2000 at the HRM Site 3 and LaPorte ...


11. NARSTO EPA_SS_HOUSTON TEXAQS2000 TNRCC CAMS Air Quality Data [NARSTO_EPA_SS_HT_CAMS]
The NARSTO_EPA_HOUSTON_TEXAQS2000_CAMS_DATA data set contains 5-minute air quality measurements collected in Texas during August and September 2000 at 85 continuous ambient monitoring stations (CAMS) ...


12. NARSTO EPA_SS_HOUSTON TEXAQS2000 Washburn Tunnel Air Quality Monitoring Data [NARSTO_EPA_SS_HT_WB_TUNNEL]
The NARSTO_EPA_SS_HOUSTON_TEXAQS2000_WB_TUNNEL data contain gas and particle phase measurements collected in a tunnel in the Houston area during the summer of 2000. The primary objective of this study ...


13. NARSTO EPA_SS_LOS_ANGELES Aerodynamic Particle Size Data [NARSTO_EPA_SS_LA_APS]
The NARSTO_EPA_SS_LOS_ANGELES_APS_DATA were collected between December 2000 and September 2001. At several locations in Los Angeles County, California, a TSI Aerodynamic Particle Sizer (APS) was used ...


14. NARSTO EPA_SS_LOS_ANGELES Aethalometer Elemental Carbon Data [NARSTO_EPA_SS_LA_AETH_EC]
The NARSTO_EPA_SS_LOS_ANGELES_AETHALOMETER_EC_DATA were collected between September 2000 to October 2003. At Claremont, Downey, Riverside, Rubidoux, and the University of Southern California (USC) ...


15. NARSTO EPA_SS_LOS_ANGELES PM2.5 Particulate Carbon [NARSTO_EPA_SS_LA_PM25_CARBON]
The NARSTO_EPA_SS_LOS_ANGELES_PM25_CARBON data were collected between January and May 2002. At Claremont (Los Angeles County, California), Cascaded Integrated Collection and Vaporization System for ...


16. NARSTO EPA_SS_LOS_ANGELES PM2.5 Particulate Nitrate [NARSTO_EPA_SS_LA_PM25_NITRATE]
The NARSTO_EPA_SS_LOS_ANGELES_PM25_NITRATE data were collected between July 2001 and January 2002. At Claremont and Rubidoux (Los Angeles County, California), Cascaded Integrated Collection and Vaporization ...


17. NARSTO EPA_SS_LOS_ANGELES PM2.5-10 Composition and Mass Data [NARSTO_EPA_SS_LOS_ANGELES_PARTISOL_DATA]
The NARSTO_EPA_SS_LOS_ANGELES_PARTISOL_DATA were collected using Partisol Model 2025-D samplers between late 2000 and late 2003 from sites at Downey, Claremont, Riverside, Rubidoux, and the University ...


18. NARSTO EPA_SS_LOS_ANGELES Scanning Mobility Particle Size Data [NARSTO_EPA_SS_LA_SMPS]
The NARSTO_EPA_SS_LOS_ANGELES_SMPS_DATA were collected between December 2000 and February 2002. At Claremont, Downey, Riverside, Rubidoux (Los Angeles County, California), TSI Scanning mobility particle ...


19. NARSTO EPA_SS_LOS_ANGELES TEOM PM2.5 Mass Concentration Data [NARSTO_EPA_SS_LA_TEOM]
The NARSTO_EPA_SS_LOS_ANGELES_TEOM_PM25_DATA were collected between December 2000 and September 2002 using a Tapered-Element Oscillating Microbalance (TEOM). At Downey and Riverside (Los Angeles County, ...


20. NARSTO EPA_SS_NEW_YORK Air Chemistry, Particulate Matter, and Met Data [NARSTO_EPA_SS_NY_AIR_CHEM_PM]
The NARSTO_EPA_SS_NEW_YORK_AIR_CHEM_PM_MET_DATA were collected between 2001 and 2006 during the PM2.5 Technology Assessment and Characterization Study in New York State (PMTACS-NY). Data files from ...


21. NARSTO ICARTT NEAX 2004 DOE G-1 Air Chemistry, Aerosol, and Met Data [NARSTO_ICARTT_NEAX_2004_DOE_G-1]
The NARSTO_ICARTT_NEAX_2004_DOE_G-1_DATA were collected in July and August, 2004 during the International Consortium for Atmospheric Research on Transport and Transformation (ICARTT), NorthEast Aerosol ...


22. NARSTO PAC2001 CFS Cessna VOC, Particle Count, Ozone, and Meteorological Data [NARSTO_PAC2001_CESSNA_PM_OZONE]
The NARSTO_PAC2001_CESSNA_VOC_PM_OZONE_MET_DATA were obtained between August 14 and August 31, 2001 during the Pacific 2001 Air Quality Study (PAC2001). The missions of the Canadian Forest Service ...


23. NARSTO PAC2001 Cassiar Tunnel Gaseous and Particle Mass and Composition Data [NARSTO_PAC2001_CASSIAR_TUNNEL]
The NARSTO_PAC2001_CASSIAR_TUNNEL_GAS_PM_DATA were obtained August 8-15, 2001 during the Pacific 2001 Air Quality Study (PAC2001). The Cassiar Tunnel site is located at 49 17' 01.9 N and 123 01' ...


24. NARSTO PAC2001 NRC-IAR Convair 580 Particle Count, Ozone, Meteorological Data [NARSTO_PAC2001_CONVAIR_PM_OZONE]
The NARSTO_PAC2001_CONVAIR_PM_OZONE_MET_DATA were obtained between August 14 and August 30, 2001 during the Pacific 2001 Air Quality Study (PAC2001). The main mission for the National Research Council ...


25. NARSTO SHEMP Particulate Matter Composition Data, Canada, 2000-2002 [NARSTO_SHEMP_CANADA_PM_COMP]
The NARSTO_SHEMP_CANADA_PM_COMPOSTION_DATA were obtained between February 14, 2000 and August 1, 2002 during the Study of the Health Effects of the Mix of Urban Air Pollutants (SHEMP). SHEMP was ...


26. NARSTO SOS99NASH DOE G-1 Air Chemistry Data [NARSTO_SOS99NASH_G-1_AIR_CHEM]
The NARSTO_SOS99NASH_G-1_AIR_CHEMISTRY_DATA were collected via the G-1 aircraft deployed during the 1999 campaign to make measurements within the Nashville urban plume. These situ, semi-Lagrangian ...


27. NARSTO SOS99NASH TVA Surface Meteorology and Chemistry Data [NARSTO_SOS99NASH_SURF_MET_CHEM]
The NARSTO_SOS99NASH_SURFACE_MET_CHEM_DATA were collected between June 15 and July 16, 1999 during the 1999 Nashville/Middle Tennessee Field Study. The Tennessee Valley Authority (TVA) operated two ...


28. NARSTO SOS99NASH WP-3D Orion Air Chemistry Data [NARSTO_SOS99NASH_WP3D_CHEM]
The NARSTO_SOS99NASH_WP3D_CHEMISTRY_DATA were obtained between June 26 and July 19, 1999 during the WP3-D aircraft component of the Nashville 1999 study sponsored in part by the Southern Oxidant Study. ...


29. NARSTO SOS99NASH Wind Profiler Data [NARSTO_SOS99NASH_WP]
The NARSTO_SOS99NASH_WIND_PROFILER_DATA were obtained between May 19 and August 4, 1999. Wind components (u and v) were collected from five 915-MHz radar wind profilers. Availability of data for each ...


30. NARSTO Texas PM2.5 Sampling and Analysis Study: 1997-1998 [NARSTO_TEXAS_PM2.5_1997-1998]
The NARSTO_Texas_PM2.5_Sampling_and_Analysis_Study_1997-1998 data were collected from March 11, 1997 to March 12, 1998. The City of Houston, the Texas Natural Resource Conservation Commission, and ...


31. NARSTO-NE Selected NEXRAD Images for 1995 [NARSTO_NE_NEXRAD_IMAGES]
The NARSTO_NE_NEXRAD_IMAGES data set contains selected NEXt Generation RADar (NEXRAD) weather images from the northeastern United States for the summer of 1995. The NEXRAD weather radar images were ...


32. NARSTO_SOS_SC_UPSTATE PM2.5 Composition Data [NARSTO_SOS_SC_UPSTATE_COMP]
The NARSTO_SOS_SC_UPSTATE_PM25_COMPOSITION data were collected during July 2001 and January of 2002 to elucidate the seasonal variability of the aerosols. Samples were collected at a rural location ...


33. NARSTO_STIFS_CANADA PM Inorganic Volatile Organic Compounds Data [NARSTO_STIFS_CANADA_PM_INORG]
The NARSTO_STIFS_CANADA_PM_INORG_VOC_DATA were collected in the Summer-Winter-Summer of 2001-2002 during the Supersite Transboundary Intensive Field Study (STIFS). The goal of STIFS was the measurement ...


34. BioData - Aquatic Bioassessment Data for the Nation [USGS_BioData]
The U.S. Geological Survey (USGS) BioData Retrieval system provides access to aquatic bioassessment data (biological community and physical habitat data) collected by USGS scientists from stream ecosystems ...


35. Ice Draft and Ice Velocity Data in the Beaufort Sea, 1990-2003 [G02177]
This data set provides measurement of sea ice draft (m) and the movement of sea ice (cm/s) over the continental shelf of the Eastern Beaufort Sea. The data set spans April 1990 to September 2003. ...


36. Wetlands losses in the United States 1780's to 1980's. [USGS_NPWRC_WetlandLoss_1780s-1980s]
Wetlands are disappearing at a rapid rate. Although measures are actively being sought to stem wetland losses and restore wetland acreage, the rate of wetland conversion over the years has been dramatic. ...


37. High-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA [ARCSS304]
This data set contains high-resolution QuickBird imagery and geospatial data for the entire Barrow QuickBird image area (156.15? W - 157.07? W, 71.15? N - 71.41? N) and Barrow B4 Quadrangle (156.29? ...


38. High-Resolution Radar Imagery, Digital Elevation Models, and Related GIS Layers for Barrow, Alaska, USA [ARCSS302]
This product set contains high-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery and geospatial data for the Barrow Peninsula (155.39 - 157.48? W, 70.86 - 71.47? N) and Barrow Triangle ...


39. High-Resolution Rectified Aerial Photography for Collaborative Research of Environmental Change at Barrow, Alaska, USA [ARCSS306]
This data set includes aerial photography of Barrow, Alaska, which has been geocorrected to a 2002 QuickBird satellite image or Interferometric Synthetic Aperture Radar (IFSAR) imagery. Photography ...


40. Pre-IceBridge ATM L0 Raw Ranges [BLATM0]
The NASA Pre-IceBridge ATM L0 Raw Ranges (BLATM0) data set contains raw elevation range measurements using the NASA Airborne Topographic Mapper (ATM) instrumentation. The data are stored in binary ...


41. Pre-IceBridge ATM L1B Qfit Elevation and Return Strength [BLATM1B]
The NASA Pre-IceBridge ATM Level-1B Qfit Elevation and Return Strength (BLATM1B) data set contains spot elevation measurements of Arctic, Greenland, and Antarctic sea ice and ice surface acquired ...


42. Pre-IceBridge ATM L2 Icessn Elevation, Slope, and Roughness [BLATM2]
The NASA Pre-IceBridge ATM Level-2 Icessn Elevation, Slope, and Roughness (BLATM2) data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic ...


43. Pre-IceBridge LVIS L0 Raw Ranges [BLVIS0]
The Pre-IceBridge LVIS L0 Raw Ranges (BLVIS0) data set contains laser altimeter measurements over Greenland taken from the NASA Land, Vegetation, and Ice Sensor (LVIS). The data are stored in binary ...


44. Pre-IceBridge LVIS L2 Geolocated Ground Elevation and Return Energy Quartiles [BLVIS2]
The Pre-IceBridge LVIS L2 Geolocated Ground Elevation and Return Energy Quartiles (BLVIS2) data set contains ground elevation measurements taken in 2007 over Greenland from the NASA Land, Vegetation, ...


45. Pre-IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles [BRMCR1B]
The Pre-IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles (BRMCR1B) data set contains Arctic and Antarctic radio echo-sounding measurements taken from the Multichannel Coherent Radar Depth ...


46. Pre-IceBridge MCoRDS L2 Ice Thickness [BRMCR2]
The NASA Pre-IceBridge MCoRDS Level-2 Ice Thickness (BRMCR2) data set contains depth sounder measurements over Greenland and Antarctica taken from the Multichannel Coherent Radar Depth Sounder (MCoRDS). ...


47. Reduced-Resolution QuickBird Imagery and Related GIS Layers for Barrow, Alaska, USA [ARCSS305]
This data set contains reduced-resolution QuickBird imagery and geospatial data for the entire Barrow QuickBird image area 156.15? W - 157.07? W, 71.15? N - 71.41? N) and the Barrow B4 Quadrangle ...


48. Reduced-Resolution Radar Imagery, Digital Elevation Models, and Related GIS Layers for Barrow, Alaska, USA [ARCSS303]
This product set contains reduced-resolution Interferometric Synthetic Aperture Radar (IFSAR) imagery and geospatial data for the Barrow Peninsula (155.39 - 157.48? W, 70.86 - 71.47? N), for use in ...


49. AIRS/Aqua Level 3 8-day standard physical retrieval (AIRS+AMSU) V005 (AIRX3ST8) at GES DISC [GES_DISC_AIRX3ST8_V005]
The AIRS Level 3 8-Day Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts. Each file covers an 8-day period, or one-half of the Aqua orbit repeat cycle. ...


50. AIRS/Aqua Level 3 8-day standard physical retrieval (AIRS+AMSU+HSB) V005 (AIRH3ST8) at GES DISC [GES_DISC_AIRH3ST8_V005]
This product is similar to AIRX3ST8. However, it contains science retrievals that use the Humidity Sounder for Brazil (HSB). Because the HSB instrument lived only from September 2002 through January ...


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