AndreaBozzo/ceres-open-data-index huggingface dataset:
Modeling SiO2 Ion Impurities Aging in Insulated Gate Power Devices Under Temperature and Voltage Stress

This paper presents a formal computational
methodology to explain how the oxide in
semiconductors degrades over time and the dependence
of oxide degradation on voltage and temperature
stresses. The effects of aging are modeled and
quantified by modification of the gate-source
capacitance value. The model output is validated using
experimental results of a thermally aged power
semiconductor device.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
IceBridge Riegl Laser Altimeter L1B Time-Tagged Laser Ranges V001

This data set contains laser ranges, returned pulses, and deviation for returned pulses in Antarctica and Greenland using the Riegl Laser Altimeter. The data were collected by scientists working on the Investigating the Cryospheric Evolution of the Central Antarctic Plate (ICECAP) project, which is funded by the National Science Foundation (NSF) and the Natural Environment Research Council (NERC) with additional support from NASA's Operation IceBridge.

Tags: earth-science, lidar, spectral-engineering
Organization: National Aeronautics and Space Administration
ETM+ PAN (1999-2003)

Single scene Tri-Decadal Global Landsat Orthorectified MSS, TM, ETM+, and ETM+ Pan-sharpened data, which may be browsed, searched, and downloaded through EarthExplorer or the USGS Global Visualization Viewer (Glovis).

Ground control points are fixed, and images have been registered to the Universal Transverse Mercator (UTM) map projection and coordinate system and the World Geodetic System 1984 (WGS84) datum. All image bands have been individually resampled, using a nearest neighbor algorithm. Positional accuracy on the final image product has a Root Mean Square Error of better than 100 meters (MSS) and 50 meters (TM and ETM+). The Landsat data were acquired and processed through a National Aeronautics and Space Administration (NASA) contract with Earth Satellite Corporation, Rockville, Maryland, and are part of NASA's Scientific Data Purchase program.

Tags: earth-science, land-surface, surface-radiative-properties, topography
Organization: National Aeronautics and Space Administration
Disk Defect Data

How Data Was Acquired: The data presented is from a physical simulator that simulated engine disks.
Sample Rates and Parameter Description: All parameters are sampled once per revolution measuring 32 blade to edge clearances on each revolution. Data is recorded for approximately 3 minutes for each run. The parameters are the revolution measurement, the clock time, the measured RPM, the maximum, average, and minimum gap across all gap sensors, and the measured gap for blade 0 to blade 31.
Anomalies/Faults: Faults include medium and large cracks on the disk.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
RSW Fully Tet Coarse Cell-Centered Mesh

This is the RSW fully tetrahedral unstructured mesh dataset for a cell-centered code, including the viscous wind tunnel wall.

UG3      : Grid File Name    = rsw_coarse_tetcc.b8.ugrid
UG3      : Quad Surface Faces=         0
UG3      : Tria Surface Faces=     61750
UG3      : Nodes             =   1357828
UG3      : Total Elements    =   8050193
UG3      : Hex Elements      =         0
UG3      : Pent_5 Elements   =         0
UG3      : Pent_6 Elements   =         0
UG3      : Tet Elements      =   8050193
UG3      : BL Tet Elements   =   7507013

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Emission Line Astronomy - Coronagraphic Tunable Narrow Band Imaging and Integral Field Spectroscopy. Project

We propose to continue our program of emission line astronomy featuring three areas of emphasis: 1) The distribution and nature of high redshift emission line galaxies, using the Lyman alpha and other rest-frame UV lines; and the study of planetary systems in formation in the first 10 Myrs, with the interplay of circumstellar disks and jets; and spectral differencing of transiting planets. 2) We are extending the capability of our Goddard Fabry-Perot Imager by incorporating a Coronagraphic Integral Field Spectrograph (CIFS), and will continue our observations with the improved instrument. We request support for completing the commissioning of the instrument, and for its maintenance and operation. The CIFS, which has been delivered to the Apache Point Observatory's 3.5-m telescope, consists of a custom microlens array and magnifier section, a grating wheel assembly, and a photon-counting electron-multiplying CCD (EMCCD), within the optical train of the Fabry-Perot. The instrument is switchable between Fabry-Perot and IFS modes. It provides observational support to interpret data from the HST, Spitzer, Chandra, Herschel and soon JWST space observatories with capabilities not available on them, and will be used to develop technology for future NASA flight programs such as WFIRST, and NWO, THEIA, ATLAST and other planet-finding missions. In this period we propose to extend the wavelength coverage of the CIFS, by extending the format of the EMCCD.

Tags: active, project
Organization: National Aeronautics and Space Administration
NOAA-20 VIIRS Level-3 Global Binned 11µm Day/Night Sea Surface Temperature (SST) - Near Real-time (NRT) Data, version R2024.0

The Ocean Biology DAAC produces near real-time (quicklook) products using the best-available combination of ancillary data from meteorological and ozone data. As such, the inputs and the calibration used are less than optimal. Quicklook products provide a snapshot of the data during a short time period within a single orbit.

Tags: earth-science, ocean-temperature, oceans
Organization: National Aeronautics and Space Administration
MULTI-TEMPORAL REMOTE SENSING IMAGE CLASSIFICATION - A MULTI-VIEW APPROACH

MULTI-TEMPORAL REMOTE SENSING IMAGE CLASSIFICATION - A
MULTI-VIEW APPROACH

VARUN CHANDOLA* AND RANGA RAJU VATSAVAI*

Abstract. Multispectral remote sensing images have been widely used for automated land use
and land cover classification tasks. Often thematic classification is done using single date image,
however in many instances a single date image is not informative enough to distinguish between
different land cover types. In this paper we show how one can use multiple images, collected at
different times of year (for example, during crop growing season), to learn a better classifier. We
propose two approaches, an ensemble of classifiers approach and a co-training based approach, and
show how both of these methods outperform a straightforward stacked vector approach often used
in multi-temporal image classification. Additionally, the co-training based method addresses the
challenge of limited labeled training data in supervised classification, as this classification scheme
utilizes a large number of unlabeled samples (which comes for free) in conjunction with a small
set of labeled training data.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Human Robotic Systems (HRS): Robonaut 2 Technologies Element

&lt;p&gt;The goal of the Robonaut 2 (R2) Technology Project Element within Human Robotic Systems (HRS) is to developed advanced technologies for infusion into the Robonaut 2 project leading to new capabilities for Robonaut. In FY14, HRS and the Technology Demonstration Mission (TDM) Human Exploration Telerobotics (HET) will collaborate to deliver a mobile IVA Robonaut 2 to ISS.&lt;/p&gt;&lt;p&gt;During 2014, the &amp;ldquo;&lt;em&gt;Robonaut 2 Technologies&amp;rdquo;&lt;/em&gt; project element will develop two technologies:&lt;/p&gt;&lt;ul&gt;&lt;li&gt;Mobile IVA Robonaut 2&lt;/li&gt;&lt;li&gt;Natural User Interfaces for Advanced Telerobotic Operations&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;The primary work area in this project element is to contribute to sending a mobile IVA Robonaut to the International Space Station (ISS) and to begin using it as a mobile system.&amp;nbsp; The main area where HRS will contribute to Robonaut 2 in FY14 will be in the area of battery development.&amp;nbsp; HRS will perform component testing of the engineering development unit (EDU) and complete assembly of the certification unit battery. The development will eventually lead to a robotic system moving and working safely in the same space as Astronauts on ISS.&amp;nbsp;&lt;/p&gt;&lt;p&gt;The second work area under this project element will be to use body-tracking input devices (i.e. Microsoft Xbox Kinect and accelerometer gloves) to immerse an operator in an accurate virtual model of the robot&amp;rsquo;s environment, capture the intent of the operator, and safely execute mobility and manipulation tasks suitable for platforms such as Robonaut 2. Initially, the operator&amp;rsquo;s head position will be tracked in order to render an appropriate point of view in the virtual environment. Next, model-based recognizers will be developed and trained to detect gestures by the human operator and trigger autonomous behaviors on the robotic system. Initial efforts will use the Kinect sensor, with additional potential investigations into other similar or complementary sensors.&lt;/p&gt;&lt;p&gt;In FY14, development will focus on further extending our natural user interface system to address the concurrent operation of manipulation and mobility aspects of hybrid robotic systems such as Robonaut 2 with legs (ground only in FY14) or an ATHLETE robot driving while manipulating a payload.&lt;/p&gt;

Tags: active, element, johnson-space-center
Organization: National Aeronautics and Space Administration
Soil Moisture Active Passive (SMAP) L4 Carbon Ancillary Soil Organic Carbon Restart File V001

This ancillary SMAP product contains the yearly soil organic carbon (SOC) restart file. This file contains the area density of SOC at the start of the year, which is used to calculate daily SOC based on defined deposition and decay rates.

Tags: earth-science, land-surface, soils
Organization: National Aeronautics and Space Administration
Rapid Advanced Heliocentric Mission Design for L3, L4, L5, NEO Rendezvous, Capture, Sample Return Project

&lt;p&gt;Provide fast, new capability for Loose SmallSat Constellation with solar sail and impulsive propulsion to nonlinear heliocentric orbits, high inclination, low energy transfer (see tubes). These include orbits around L3, 4, 5, NEO rendezvous (e.g. Earth Trojans), capture, sample return &amp;amp; for space weather monitoring.&lt;/p&gt;

Tags: active, jet-propulsion-laboratory, project
Organization: National Aeronautics and Space Administration
BSCW Unstructured Grids - VGRID software

These grids were constructed using VGRID software from NASA Langley. The grids designed for node based (labeled 'nc') and cell-centered solvers are supplied. Grids with mixed elements (labeled 'mixed') and tetrahedral elements (labeled 'tets') are supplied.

Each mixed elements tar-file contains grid in aflr3 .ugrid format and the corresponding .cgns file. Each tetrahedral elements tar-file contains grid in native VGRID format (.cogsg, .bs, .mapbc) and the corresponding .cgns file.

Some files were too large and had to be split into parts. To combine the parts, use cat filename_part1 filename_part2 > filename.

Grids are in units of 'inch'. Information about grids, that is number of nodes, elements, etc., is provided in AePW_BSCW_Grid_Statistics_VGRID.docx

Please report any issues with these grids to Pawel.Chwalowski@nasa.gov

Please note that the final grids for Aeroelastic Prediction Workshop are due on November 1. Therefore these grids still may change based on your initial calculations.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
OCO-2 Level 1A collated, parsed, calibration data, Retrospective Processing V11r (OCO2_L1aIn_Pixel) at GES DISC

Version 11r is the current version of the data set. Older versions will no longer be available and are superseded by Version 11r.

The Orbiting Carbon Observatory is the first NASA mission designed to collect space-based measurements of atmospheric carbon dioxide with the precision, resolution, and coverage needed to characterize the processes controlling its buildup in the atmosphere. The OCO-2 project uses the LEOStar-2 spacecraft that carries a single instrument. It incorporates three high-resolution spectrometers that make coincident measurements of reflected sunlight in the near-infrared CO2 near 1.61 and 2.06 micrometers and in molecular oxygen (O2) A-Band at 0.76 micrometers. The three spectrometers have different characteristics and are calibrated independently. Their raw data numbers (DN) are delivered correlated in time to the Level 1B process as Level 1A products. Each band has 1016 spectral elements, although some are masked out in the L2 retrieval.This product is the input to the Level 1B process. It is depacketized raw data formatted into a standard granularity with calibrated engineering data (for both science and calibration observations), in the Single-pixel Mode of operation.This is the retrospective processing where the calibration data is estimated from the full timeseries of data (before, during, and after the measurements), and is expected to be of slightly higher quality.

Tags: atmosphere, atmospheric-chemistry, earth-science, infrared-wavelengths, spectral-engineering
Organization: National Aeronautics and Space Administration
ATLAS/ICESat-2 L3A Ocean Surface Height V006

This data set (ATL12) contains along-track sea surface height of the global open ocean, including the ice-free seasonal ice zone and near-coast regions. Estimates of height distributions, significant wave height, sea state bias, and 10 m heights are also provided. The data were acquired by the Advanced Topographic Laser Altimeter System (ATLAS) instrument on board the Ice, Cloud and land Elevation Satellite-2 (ICESat-2) observatory.

Tags: earth-science, oceans, sea-surface-topography
Organization: National Aeronautics and Space Administration
Alaska AVHRR Twice-Monthly Composites

The goal of the Alaska Advanced Very High Resolution Radiometer  (AVHRR) project is to compile a time series data set of calibrated,  georegistered  daily observations and twice-monthly maximum normalized difference  vegetation index (NDVI) composites for Alaska's annual growing  season (April-October). This data set has applications for environmental monitoring and for assessing impacts of global climate change.  An Alaska AVHRR data set is comprised of twice-monthly maximum NDVI composites of daily satellite observations.  The NDVI composites  contain 10 bands of information, including AVHRR channels 1-5, maximum NDVI, satellite zenith, solar zenith, and relative azimuth.  The daily   observations, bands 1-9, have been calibrated to reflectance, scaled  to   byte data, and geometrically registered to the Albers Equal-Area  Conic map projection. The 10th band is a pointer to identify the date and  scene ID of  the source daily observation (scene) for each pixel.

The compositing process required each daily overpass to be  registered to a common map projection to ensure that from day to day each 1-km pixel represented the exact same ground location.  The Albers Equal-Area Conic map projection provides for equal area representation, which enables  easy measurement of area throughout the data.  Each daily observation for  the growing season was registered to a base image using image-to-image correlation.

The NDVI data are calculated from the calibrated, geometrically  registered daily observations. The NDVI value is the difference between  near-infrared (AVHRR Channel 2) and visible (AVHRR Channel 1) reflectance values  divided by total measured reflectance.  A maximum NDVI compositing process  was used on the daily observations.  The NDVI is examined pixel by pixel for  each observation during the compositing period to determine and retain  the maximum value.  Often when displaying data covering large areas, such as AVHRR data,  it is beneficial to include an overlay of either familiar linework for  reflectance or polygon data sets to derive statistical summaries of regions.  All of the linework images represent lines in raster format as 1-km cells and  the strata are represented as polygons registered to the AVHRR data.  The  linework and polygon data sets include international boundaries, Alaskan roads  with the Trans-Alaska Pipeline, and a raster polygon mask of the State.

Tags: biosphere, earth-science, infrared-wavelengths, spectral-engineering, vegetation, visible-wavelengths
Organization: National Aeronautics and Space Administration
CERES Bidirectional Scans Aqua FM4 Edition1-CV

CER_BDS_Aqua-FM4_Edition1-CV is the Clouds and the Earth's Radiant Energy System (CERES) Bidirectional Scans (BDS) Aqua Flight Model 4 (FM4) Edition 1-CV data product, which is collected using the CERES-FM4 instrument on the Aqua platform. This data product is intended only to be used for instrument validation purposes and is, therefore, not suited for science publications. Data collection for this product is complete. 

Note: Edition1-CV data are for instrument validation purposes only and not suited for science publications.

Each CERES BDS data product contains twenty-four hours of Level-1B data for each CERES scanner instrument mounted on each spacecraft. BDS includes samples taken in normal and short Earth scan elevation profiles in both fixed and rotating azimuth scan modes (including space, internal calibration, and solar calibration views). BDS contains Level-0 raw (unconverted) as well as the geolocated converted science and instrument data. BDS contains additional data not found in the Level-0 input file, including converted satellite position and velocity data, celestial data, converted digital status data, and parameters used in the radiance count conversion equations. CERES is a key component of the Earth Observing System (EOS) program. 

CERES is a key component of the Earth Observing System (EOS) program. The CERES instruments provide radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES missions are a follow-on to the successful Earth Radiation Budget Experiment (ERBE) mission. The first CERES instrument, protoflight model (PFM), was launched on November 27, 1997 as part of the Tropical Rainfall Measuring Mission (TRMM). Two CERES instruments (FM1 and FM2) were launched into polar orbit on board the Earth Observing System (EOS) flagship Terra on December 18, 1999. Two additional CERES instruments (FM3 and FM4) were launched on board Earth Observing System (EOS) Aqua on May 4, 2002. The CERES FM5 instrument was launched on board the Suomi National Polar-orbiting Partnership (NPP) satellite on October 28, 2011. The newest CERES instrument (FM6) was launched on board the Joint Polar-Orbiting Satellite System 1 (JPSS-1) satellite, now called NOAA-20, on November 18, 2017.

Tags: atmosphere, atmospheric-radiation, earth-science, infrared-wavelengths, sensor-characteristics, spectral-engineering, visible-wavelengths
Organization: National Aeronautics and Space Administration
Aqua MODIS Level-3 Global Binned 4µm Nighttime Sea Surface Temperature (SST4) Data, version R2019.0

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.

Tags: earth-science, national-geospatial-data-asset, ngda, ocean-temperature, oceans
Organization: National Aeronautics and Space Administration
High Spectral Resolution, High Cadence, Imaging X-ray Microcalorimeters for Solar Physics - Phase 2 Project

&lt;p&gt;
	Microcalorimeter x-ray instruments are non-dispersive, high spectral resolution, broad-band, high cadence imaging spectrometers. We have been developing these instruments for x-ray astrophysics for over 25 years and have successfully flown them on both suborbital and orbital observatories. Microcalorimeter spectrometers are true spatial-spectral event-driven instruments. The core instrument for the Astro-H observatory to be launched in 2014 and for the International X-ray Observatory planned for around 2022 [1] are both microcalorimeter spectrometers. For the past two years, supported by the Solar and Heliospheric ROSES program, we have been adapting this highly successful technology to the very different requirements of solar physics. This leverages the large NASA investment in this technology to produce instruments optimized for solar physics with only a moderate development program.&lt;/p&gt;
&lt;p&gt;
	During the past two years, we have developed a high spatial resolution, high cadence microcalorimeter optimized for solar observations with a ground-breaking spectral resolving power of nearly 3000 at 6 keV. This exceeds the performance goals of our program. In fact, the single-pixel performance achieved during this program is already sufficient for a solar optimized instrument as described in section 2, albeit using small arrays of detectors. We propose here to continue this successful program by developing large focal-plane arrays, optimized for solar physics and their read-out systems. This complements our existing development programs in astrophysics, where we have already produced and tested kilo-pixel arrays for IXO. The end-result of the proposed work will be a solar-optimized detector system proven and ready for integration into a suborbital payload and then onto a space-borne observatory. Both the suborbital program and an orbital instrument would allow high cadence spatial-spectral observations across the x-ray band from 0.1 to above 10 keV, enabling new science as described in section 1.4. Ultimately this will produce instrumentation suitable for deployment on an Explorer-class mission and, possibly, a remote sensing contribution to the Solar Energetic Particle Acceleration and Transport (SEPAT) Solar-Terrestrial Probe [2]. &amp;nbsp;&lt;/p&gt;

Tags: active, nasa-headquarters, project
Organization: National Aeronautics and Space Administration