Published By Army Corps of Engineers, Department of the Army, Department of Defense
Issued over 9 years ago
Summary
Description
The Joint Airborne Lidar Bathymetry Technical Center of Expertise (JALBTCX) has performed a coastal survey along the Atlantic coast of MA in the summer of 2007. The data types collected include bathymetry and topographic lidar point data, true color imagery and hyperspectral imagery. The collection effort follows the coastline and extends 500m inland and 1000m offshore or to laser extinction, whichever comes first. Topographic lidar is collected with 200% coverage, yielding a nominal 1m x 1m post-spacing. Where water conditions permit, the bathymetry lidar data will have a nominal post spacing of 4m x 4m. The true color imagery will have a pixel size approximately 35cm and the hyperspectral imagery will be provided in 1m pixels containing 36 bands between 375 - 1050 nm with 19 nm bandwidth. The final data will be tied to horizontal positions, provided in decimal degrees of latitude and longitude, and are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88).
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Development of a novel analytical instrument which combines the advantages of fast GC and a detector capable of identifying species is proposed. Experiments in the limited-space environment require from a GC system maximum productivity and universality with minimal resource consumption. A combination of a short-column fast-chromatographic separation technique with a low-power-consumption miniature detector capable of identifying unknown species would be an ideal instrument for flight analysis. The proposed instrument will employ the technology of Penning Ionization Electron Spectroscopy in plasma (PIES) which provides an excellent opportunity for the development of a fast-GC/PIES combination that satisfies these requirements. A new micro-PIES detector is proposed that uses continuous flowing afterglow discharge cell design enabling the measurement of PIES spectra in continuous flow at atmospheric pressure of the carrier gas. PIES spectra for permanent gases will be recorded in Phase I by a micro-PIES detector prototype. In Phase II of the project, a commercially viable micro-PIES detector and an analytical device combining fast GC and the micro-PIES detector, will be developed.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This is the AIRS mid-tropospheric Carbon Dioxide (CO2) Level 3 8-day Gridded Retrieval, from the AIRS and AMSU instruments on board of Aqua satellite. It is a 8-day gridded data, at 2.5x2 deg (lon)x(lat) grid cell size. The data is in mole fraction units (data x 10^6 =ppm in volume). This is a total tropospheric column property. The file format is HDF-EOS 2.12 corresponding to HDF4. This AIRS mid-tropospheric CO2 Level 3, 8-day, Gridded Retrieval Product contains standard retrieval means, standard deviations and input counts as well as the latitude and longitude arrays giving the centers of the grid boxes. Each file covers an 8-day period. The mean values are simply the arithmetic means of the individual CO2 retrievals which fall within that grid box over the 8-day period. The mid-tropospheric CO2 retrievals have been averaged and binned into 2.5 x 2 deg grid cells, from -180.0 to +180.0 deg longitude and from -60.0 to +90.0 deg latitude. For each grid map of 4-byte floating-point mean values there is a corresponding 4-byte floating-point map of standard deviation and a 2-byte integer grid map of counts. The counts map provides the user with the number of points per bin that were included in the mean." (The Shortname for this product is AIRX3C28).
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
The AIRS Infrared (IR) level 1B data set contains AIRS infrared calibrated and geolocated radiances in milliWatts/m^2/cm^-1/steradian. This data set is generated from AIRS level 1A digital numbers (DN), including 2378 infrared channels in the 3.74 to 15.4 micron region of the spectrum. A day's worth of AIRS data is divided into 240 scenes each of 6 minute duration. For the AIRS infrared measurements, an individual scene consists of 135 scanlines containing 90 cross-track footprints; thus there is a total of 135 x 90 = 12,150 footprints per AIRS IR scene. (The Shortname for this product is AIRIBRAD).
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Level 3, seasonal ascending wind speed product for version 3.0 of the Aquarius data set
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This narrative report cover activities during January to December 1951 for Lake Ilo, Legion Lake, Stewart Lake, White Lake, Lake Susie, Clearwater, Lake Patricia, Lake Charles, Lake Oliver, Shell Lake, Zahl and Hiddenwood National Wildlife Refuges. Topics covered include water and habitat conditions, wildlife, refuge development and maintenance. Pictures and items of interest are included.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This data set presents micrometeorological data from the Flux over Snow Surfaces (FLOSS) project carried out during the Cold Land Processes Field Experiment (CLPX) at North Park, Colorado, USA. The project measured air temperature, air pressure, relative humidity, wind speed, water vapor flux, carbon dioxide, longwave and shortwave radiation, soil temperature, soil moisture, soil heat flux, precipitation, snow depth, and eddy correlation. Measurements were collected between 1 Dec 2001 and 27 March 2002, and between 20 November 2002 and 24 March 2003. Sensors were installed on 2-meter and 4-meter platforms.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
The SeaWiFS instrument was launched by Orbital Sciences Corporation on the OrbView-2 (a.k.a. SeaStar) satellite in August 1997, and collected data from September 1997 until the end of mission in December 2010. SeaWiFS had 8 spectral bands from 412 to 865 nm. It collected global data at 4 km resolution, and local data (limited onboard storage and direct broadcast) at 1 km. The mission and sensor were optimized for ocean color measurements, with a local noon (descending) equator crossing time orbit, fore-and-aft tilt capability, full dynamic range, and low polarization sensitivity.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Environment Canada (EC) collected ceilometer data during the GPM Cold-season Precipitation Experiment (GCPEx) in Huronia, Canada from January 15, 2012 through March 1, 2012. The CT25K ceilometer uses pulsed diode laser LIDAR technology to derive backscatter profiles, cloud heights and vertical visibilities. It is also able to detect 3 cloud layers simultaneously.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Radarsat-1 Wide Beam Data in ASF Frame Size Processed to Level 0
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
The Coastal Zone Color Scanner Experiment (CZCS) was the first instrument devoted to the measurement of ocean color and flown on a spacecraft. Although other instruments flown on other spacecraft had sensed ocean color, their spectral bands, spatial resolution and dynamic range were optimized for land or meteorological use and had limited sensitivity in this area, whereas in CZCS, every parameter was optimized for use over water to the exclusion of any other type of sensing. CZCS had six spectral bands, four of which were used primarily for ocean color. These were of a 20 nanometer bandwidth centered at 443, 520, 550, and 670 nm. Band 5 had a 100 nm bandwidth centered at 750 nm and a dynamic range more suited to land. Band 6 operated in the 10.5 to 12.5 micrometer region and sensed emitted thermal radiance for derivation of equivalent black body temperature. (This thermal band failed within the first year of the mission, and so was not used in the global processing effort.) Bands 1-4 were preset to view water only and saturated when the IFOV was over most types of land surfaces, or clouds.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This monthly report for Arapaho NWR summarizes highlights, weather, activities, accomplishments, and public relations during November of 2000.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
ABSTRACT: The data set consists of a subset of the ISRIC-WISE global data set of derived soil properties for the study area of the Large Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) in South America (i.e., longitude 85 to 30 degrees W, latitude 25 degrees S to 10 degrees N). More information about LBA and links to other LBA project sites can be found at http://www.daac.ornl.gov/LBA/misc_amazon.html.
Trempealeau National Wildlife Refuge: Narrative report: September, October, November, December, 1951
Published By US Fish and Wildlife Service, Department of the Interior
Issued over 9 years ago
Summary
Description
This narrative report for Trempealeau NWR outlines Refuge accomplishments from September through December of 1951. The report begins by summarizing the weather conditions and water conditions during this period. Wildlife including migratory birds, upland game birds, big game animals, and furbearers is also covered. The Refuge development and maintenance section discusses plantings. The public relations section of the report describes hunting. NR forms are attached.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
This data set consists of in-situ point measurements of soil moisture within three 25-km by 25-km Meso-cell Study Areas (MSAs) in northern Colorado (Fraser, North Park , and Rabbit Ears). Measurements were made between September 2001 and April 2003. Spatial and temporal variations in soil moisture described by these data may be used to support remotely sensed airborne (e.g., Gamma flights) and satellite (e.g., AMSR-E) surveys of soil moisture at increasing spatial scales. Gravimetric measurements, as well as some volumetric measurements, of soil moisture were made at each measurement site. The NASA Cold Land Processes Field Experiment (CLPX) is a multi-sensor, multi-scale experiment that focuses on extending a local-scale understanding of water fluxes, storage, and transformations to regional and global scales. Within a framework of nested study areas in the central Rocky Mountains of the western United States, ranging from 1-ha to 160,000 km2, intensive ground, airborne, and spaceborne observations are collected. Data collection focuses on two seasons: mid-winter, when conditions are generally frozen and dry, and early spring, a transitional period when both frozen and thawed, dry and wet conditions are widespread.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
Aquarius Official Release Level 3 Ancillary Reynolds Sea Surface Temperature Standard Mapped Image Ascending Daily Data V3.0
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
SST is derived from the MODIS IR channels using two channels in either the thermal IR (11-12 um) or channels in the mid-IR region (3.8-4.1 um). The approach is similar to the multi-channel sea surface temperature (MCSST) or the non-linear SST (NLSST) methods used to generate AVHRR-based SST. The MODIS data are available in a variety of spatial resolutions and temporal periods. The Level 3 mapped products are global gridded data sets with all points filled even over land.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra (EOS AM) and Aqua (EOS PM) satellites. Terra's orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth's surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths (see MODIS Technical Specifications). These data will improve our understanding of global dynamics and processes occurring on the land, in the oceans, and in the lower atmosphere. MODIS is playing a vital role in the development of validated, global, interactive Earth system models able to predict global change accurately enough to assist policy makers in making sound decisions concerning the protection of our environment.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
All 1C products have a common L1C data structure, simple and generic. Each L1C swath includes scan time, latitude and longitude, scan status, quality, incidence angle, Sun glint angle, and the intercalibrated brightness temperature (Tc). One or more swaths are included in a product. The radiometer data are recalibrated to a common basis so that precipitation products derived from them are consistent. 1CMHS contains common calibrated brightness temperature from the MHS passive microwave instrument flown on the NOAA and METOPS satellites. Swath S1 is the only swath and has 5 channels (89.0GHzV, 157.0GHzV, 183.3GHz+/-250MHzH, 183.3GHz+/- 500MHzH, and 190.3 GHzV). MHS is very similar to AMSU-B. The scan period is 2.667s.The purpose of Level 1C algorithms is to provide common intercalibrated microwave brightness temperature (Tc) products for GPM core and constellation satellites using the GPM Microwave Imager (GMI) as the reference standard to ensure the consistency among global precipitation retrieval and climate studies. Current available L1C products are listed in the following table found in the document Introduction To Data Products ("http://pps.gsfc.nasa.gov/Documents/IntroductionToDataProducts.pdf")
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
SST is derived from the MODIS IR channels using two channels in either the thermal IR (11-12 um) or channels in the mid-IR region (3.8-4.1 um). The approach is similar to the multi-channel sea surface temperature (MCSST) or the non-linear SST (NLSST) methods used to generate AVHRR-based SST. The MODIS data are available in a variety of spatial resolutions and temporal periods. The Level 3 mapped products are global gridded data sets with all points filled even over land.
Published By National Aeronautics and Space Administration
Issued over 9 years ago
Summary
Description
ML2HOCL is the EOS Aura Microwave Limb Sounder (MLS) standard product for hypochlorous acid derived from radiances measured primarily by the 640 GHz radiometer. The current version is 2.2. Spatial coverage is near-global (-82° to +82° latitude), with each profile spaced 1.5° or ~165 km along the orbit track (roughly 15 orbits per day). The recommended useful vertical range is from 10 to 2.15 hPa, and the vertical resolution is about 6 km. Users of the ML2OHCL data product should read section 3.12 of the EOS MLS Level 2 Version 2.2 Quality Document for more information (http://mls.jpl.nasa.gov/data/v2-2_data_quality_document.pdf). Users are encouraged to register with the MLS science team at https://mls.jpl.nasa.gov/forms/reguser.php to obtain updates and information about this data product. The data are stored in the version 5 EOS Hierarchical Data Format (HDF-EOS5), which is based on the version 5 Hierarchical Data Format, or HDF5. Each file contains two swath objects (one with profile data, the other with column data), each with a set of data and geolocation fields, swath attributes, and metadata. The data fields include the geophysical parameter values and precision (standard deviation), convergence values, data quality, and a status flag. The geolocation fields include a time stamp in TAI-93 format (seconds since January 1, 1993), geodetic latitude and longitude, and pressure level values, as well as local solar time, solar zenith angle, line of sight angle, and orbit geodetic angle. There is one file per day.