AndreaBozzo/ceres-open-data-index huggingface dataset:
TROPICS01 L2B Deep Multispectral INtensity (DMIN) of Tropical Cyclones Estimator Algorithm V1.0

The "Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats" (TROPICS) mission has a goal of providing nearly all-weather observations of three-dimensional temperature and humidity, as well as cloud ice and precipitation horizontal structure, at high temporal resolution to conduct high-value science investigations of tropical cyclones. The mission comprises a constellation of five identical Space Vehicles (SVs) conforming to the 3U form factor and hosting a passive microwave spectrometer payload.

Each SV hosts an identical high-performance spectrometer named the TROPICS Millimeter-wave Sounder (TMS) that will provide temperature profiles using seven channels near the 118.75-GHz oxygen absorption line, water vapor profiles using three channels near the 183-GHz water vapor absorption line, imagery in a single channel near 90 GHz for precipitation measurements (when combined with higher resolution water vapor channels), and a single channel near 205 GHz that is more sensitive to cloud-sized ice particles.

The Deep Multispectral INtensity of TCs estimator with 183 GHz brightness temperatures (D-MINT183), developed at the University of Wisconsin/CIMSS, estimates two primary TC variables: Minimum Sea Level Pressure (MSLP) and Maximum Sustained Winds (MSW). D-MINT183 is a convolutional neural network (CNN) with no inherent physical understanding of TC intensity relationships, which is an approach that differs from the other two TROPICS TC Intensity algorithm (i.e., TCIE and HISA). D-MINT183 is trained using combinations of 183±1 and 183±3 GHz imagery from SSMIS, ATMS, MHS, and AMSU-B, as well as 15 hours of infrared imagery (in 3-h increments) and scalar predictors. TROPICS has 184.41 GHz and 186.51 GHz imagery, which is used as a proxy for the 183±1 GHz and 183±3 GHz imagery. D-MINT183 produces a probabilistic distribution of intensities for a given TC for 15 different quantiles. The D-MINT183 single-value intensity is the average of the 30th to 70th quantiles, as that was found to be more accurate than the 50th quantile.

Tags: atmosphere, earth-science, weather-events
Organization: National Aeronautics and Space Administration
Sparse Solutions for Single Class SVMs: A Bi-Criterion Approach

In this paper we propose an innovative learning algorithm - a variation of One-class  Support Vector Machines (SVMs) learning algorithm to produce sparser solutions with much reduced computational complexities. The proposed technique returns an approximate solution, nearly as good as the solution set obtained by the classical approach, by minimizing the original risk function along with a regularization term. We introduce a bi-criterion optimization that helps guide the search towards the optimal set in much reduced
time. The outcome of the proposed learning technique was compared with the benchmark one-class Support Vector machines algorithm which more often leads to solutions with
redundant support vectors. Through out the analysis, the problem size for both optimization routines was kept consistent.
We have tested the proposed algorithm on a variety of data sources under different conditions to demonstrate the effectiveness. In all cases the proposed algorithm closely preserves the accuracy of standard one-class  SVMs while reducing both training time and test time by several factors.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures V001

This data set consists of brightness temperatures acquired from the Scanning Multichannel Microwave Radiometer (SMMR) on board the Nimbus-7 Pathfinder satellite. The brightness temperatures are gridded onto the Equal-Area Scalable Earth Grid (EASE-Grid) and are presented in three different projections: Northern Hemisphere, Southern Hemisphere, and global.

Tags: earth-science, microwave, spectral-engineering
Organization: National Aeronautics and Space Administration
Intelligent Temporal Data Driven World Actuation in Ambient Environments Case Study: Anomaly Recognition and Assistance Provision in Smart Home

Abstract — A possible resident of smart home is an old person or an Alzheimer patient that should be assisted continuously for the rest of his life; however, normally this person desires to live independently at home. Typically, this person may forget sometimes completion of the activities; may realize the activities of daily living incorrectly, and may enter to dangerous states. In this context smart home project is proposed as an ambient intelligent environment, in which on one hand the resident is observed continuously through the embedded sensors, and on the other hand the resident is assisted automatically through the embedded electronically controllable actuators. In this work, we propose an approach to interpret the sensors’ observations and how to automatically reason in the required assistance. The result is provision of automated assistance for the smart home resident.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
AMSR-E/AMSR2 Unified L2B Half-Orbit 25 km EASE-Grid Surface Soil Moisture V001

The AMSR-E/AMSR2 Unified Level-2B land product provides a long-term data record by combining AMSR-E and AMSR2 data. This data set includes surface soil moisture estimates derived from L1R brightness temperatures using the Normalized Polarization Difference algorithm (NPD) and the Single Channel Algorithm (SCA) along with ancillary information gridded to the 25 km Equal-Area Scalable Earth Grid (EASE-Grid).

Tags: biosphere, earth-science, infrared-wavelengths, land-surface, soils, spectral-engineering, vegetation
Organization: National Aeronautics and Space Administration
High Mountain Asia Langtang Snow Bidirectional Reflectance Factor V001

This data set contains snow bidirectional reflectance factor (BRF) between 350 and 2500 nm collected on the Yala Glacier on 23 April and 24 April 2018 by the International Centre for Integrated Mountain Development (ICIMOD).

Tags: cryosphere, earth-science, snow-ice
Organization: National Aeronautics and Space Administration
UARS Cryogenic Limb Array Etalon Spectrometer (CLAES) Level 3AT V009 (UARCL3AT) at GES DISC

The Cryogenic Limb Array Etalon Spectrometer (CLAES) Level 3AT data product consists of daily, 65.536 second interval time-ordered vertical profiles of temperature and concentrations of O3, H2O, CH4, N2O, NO, NO2, N2O5, HNO3, ClONO2, HCl, CF2Cl2 (CFC-12), CFCl3 (CFC-11), and aerosol absorption coefficients. The instrument measured infrared thermal emissions at wavelengths from 3.5 to 12.7 microns. CLAES was flown on NASA's Upper Atmosphere Research Satellite (UARS) and designed to measure the chemical composition of the stratosphere and mesosphere, and also investigated the depletion of stratospheric ozone and ozone chemistry. Limb measurements were made in the altitude range between 10 and 60 km at about 2.5 km resolution. Data were collected between latitude 34S and 80N and 80S and 34N, alternating each satellite yaw cycle of about 36 days. The CLAES Level 3AT data were processed with the version 9 algorithm, except H2O which is version 7.

The CLAES level 3AL product consists of 20 granules per day. A data granule is one CLAES species or subtype per day. Data are on the UARS standard pressure levels (in mbars) given by:

P(i) = 1000 * 10**(-i/6)  for i = 0, 1, 2, ...

The data files are available in a binary record oriented format.

Tags: aerosols, atmosphere, atmospheric-chemistry, atmospheric-temperature, atmospheric-water-vapor, earth-science
Organization: National Aeronautics and Space Administration
Accelerated Aging with Electrical Overstress and Prognostics for Power MOSFETs

Power electronics play an increasingly important role in energy applications as part of their power converter circuits. Understanding the behavior of these devices, especially their failure modes as they age with nominal usage or sudden fault development is critical in ensuring efficiency. In this paper, a prognostics based health management of power MOSFETs undergoing accelerated aging through electrical overstress at the gate area is presented. Details of the accelerated aging methodology, modeling of the degradation process of the device and prognostics algorithm for prediction of the future state of health of the device are presented. Experiments with multiple devices demonstrate the performance of the model and the prognostics algorithm as well as the scope of application.
Index Terms—Power MOSFET, accelerated aging, prognostics.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Suomi-NPP VIIRS Level-3 Global Mapped Triple-window Sea Surface Temperature (SST3) - Near Real-time (NRT) Data, version R2016.2

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
UARS PEM Level 2 HEPS A V002 (UARPE2HEPSA) at GES DISC

The Particle Environment Monitor (PEM) level 2 High-Energy Particle Spectrometer (HEPS) A daily product contains electron high-resolution spectral data converted to number intensity units from the HEPS telescopes mounted on the zenith UARS boom. PEM was flown on the UARS spacecraft to measure the type, amount, energy, and distribution of charged particles injected into the Earth's thermosphere, mesosphere, and stratosphere.

The PEM HEPS electron data covers roughly the energy range from 35 keV to 5 MeV. There are four telescopes mounted in different directions. These measure -15 deg, +15 deg, +45 deg, and +90 degrees with respect to the spacecraft -z-axis and along the spacecraft +x-axis. The HEPS electron units accumulate a spectrum in 4.086 seconds. There are two HEPS units in these data product files (labeled HEPS1 and HEPS2), each containing two telescopes (labeled telescope 1 and telescope 2). Each telescope contains a stack of solid state crystals. The signals from each of the crystals are combined by energy processing electronics of the instrument to yield two logical crystals or detectors, called the DE and EE detectors. The DE detector has the rough energy range from 35 keV to 300 keV and the EE detector rough energy range is from 300 keV to 5 MeV.

There is one data file per day for the PEM HEPSA product, and the temporal coverage is from Oct. 1, 1991 to Aug. 23, 2005. Spatial coverage for the HEPSA product ranges between -57 and +57 degrees latitude. The HEPSA data files are written in network binary format. For more information please review the PEM HEPSA data format guide.

Tags: earth-science, solar-energetic-particle-flux, sun-earth-interactions
Organization: National Aeronautics and Space Administration
P-3 Meteorological and Navigation Data IMPACTS V1

The P-3 Meteorological and Navigation Data IMPACTS dataset is a subset of airborne measurements that include GPS positioning and trajectory data, aircraft orientation, and atmospheric state measurements of temperature, pressure, water vapor, and horizontal winds. These measurements were taken from the NASA P-3 aircraft during the Investigation of Microphysics and Precipitation for Atlantic Coast-Threatening Snowstorms (IMPACTS) campaign. Funded by NASA’s Earth Venture program, IMPACTS is the first comprehensive study of East Coast snowstorms in 30 years. The campaign aimed to (1) Provide observations critical to understanding the mechanisms of snowband formation, organization, and evolution; (2) Examine how the microphysical characteristics and likely growth mechanisms of snow particles vary across snowbands; and (3) Improve snowfall remote sensing interpretation and modeling to significantly advance prediction capabilities. Data are available in ASCII-ict format from  January 12, 2020 through February 25, 2022.

Tags: atmosphere, atmospheric-pressure, atmospheric-temperature, atmospheric-water-vapor, atmospheric-winds, earth-science, platform-characteristics, spectral-engineering
Organization: National Aeronautics and Space Administration
KEYWORD SEARCH IN TEXT CUBE: FINDING TOP-K RELEVANT CELLS

KEYWORD SEARCH IN TEXT CUBE: FINDING TOP-K RELEVANT CELLS

BOLIN DING*, YINTAO YU*, BO ZHAO*, CINDY XIDE LIN*, JIAWEI HAN*, AND CHENGXIANG ZHAI*

Abstract. We study the problem of keyword search in a data cube with text-rich dimension(s)
(so-called text cube). The text cube is built on a multidimensional text database, where each row
is associated with some text data (e.g., a document) and other structural dimensions (attributes).
A cell in the text cube aggregates a set of documents with matching attribute values in a subset
of dimensions. A cell document is the concatenation of all documents in a cell. Given a keyword
query, our goal is to find the top-k most relevant cells (ranked according to the relevance scores of
cell documents w.r.t. the given query) in the text cube.
We define a keyword-based query language and apply IR-style relevance model for scoring and
ranking cell documents in the text cube. We propose two efficient approaches to find the top-k
answers. The proposed approaches support a general class of IR-style relevance scoring formulas
that satisfy certain basic and common properties. One of them uses more time for pre-processing
and less time for answering online queries; and the other one is more efficient in pre-processing and
consumes more time for online queries. Experimental studies on the ASRS dataset are conducted
to verify the efficiency and effectiveness of the proposed approaches.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
CDDIS_GNSS_satellite_data

Global Navigation Satellite System (GNSS) data consists of the U.S. Global Positioning System (GPS) and the Russian GLObal NAvigation Satellite System (GLONASS) (plus other international systems) data sets. The Global Positioning System, developed by the U.S. Department of Defense, has been fully operational since 1994. GPS consists of a constellation of 24 satellites and three active spares each traveling in a 12 hour circular orbit, 20,200 kilometers above the Earth. The satellites are positioned so that six are observable nearly 100 percent of the time from any point on the Earth. The GLObal NAvigation Satellite System (GLONASS), managed and deployed by the Russian Federation, is similar to the U. S. Global Positioning System (GPS) in terms of the satellite constellation, orbits, and signal structure. GNSS receivers detect, decode, and process signals from the GNSS satellites. The satellites transmit the ranging codes on two radio-frequency carriers, allowing the locations of GNSS r

Tags: nasa
Organization: National Aeronautics and Space Administration
Unsupervised Anomaly Detection for Liquid-Fueled Rocket Prop...

Title: Unsupervised Anomaly Detection for Liquid-Fueled Rocket Propulsion Health Monitoring.

Abstract: This article describes the results of applying four unsupervised anomaly detection algorithms to data from two rocket propulsion testbeds. The first testbed uses historical data from the Space Shuttle Main Engine. The second testbed uses data from an experimental rocket engine test stand located at NASA Stennis Space Center. The article describes nine anomalies detected by the four algorithms. The four algorithms use four different definitions of anomalousness. Orca uses a nearest-neighbor approach, defining a point to be an anomaly if its nearest neighbors in the data space are far away from it. The Inductive Monitoring System clusters the training data, and then uses the distance to the nearest cluster as its measure of anomalousness. GritBot learns rules from the training data, and then classifies points as anomalous if they violate these rules. One-class support vector machines map the data into a high-dimensional space in which most of the normal points are on one side of a hyperplane, and then classify points on the other side of the hyperplane as anomalous. Because of these different definitions of anomalousness, different algorithms detect different anomalies. We therefore conclude that it is useful to use multiple algorithms.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
NEW RSW & Wall Fine Fully Tetrahedral Grid

NEW RSW Fine Fully Tetrahedral Grid with Viscous Wind Tunnel wall at the root. This grid is for a node-based unstructured solver.  Note that the CGNS file is very large and is gzipped.

Quad Surface Faces=         0
Tria Surface Faces=    553258
Nodes             =  23997526
Total Elements    = 142995542
Hex Elements      =         0
Pent_5 Elements   =         0
Pent_6 Elements   =         0
Tet Elements      = 142995542
BL Tet Elements   = 126168161

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Soil Moisture Active Passive (SMAP) L4 Soil Moisture Ancillary Restart Files V001

This ancillary SMAP product contains static restart files for the Land Data Assimilation Systems (LDAS) Catchment model. This product includes prognostic variables for both the catchment model and perturbations model.

Tags: climate-indicators, cryospheric-indicators, earth-science, land-surface, soils
Organization: National Aeronautics and Space Administration
Lunar Sample Atlas

The Lunar Sample Atlas provides pictures of the Apollo samples taken in the Lunar Sample Laboratory, full-color views of the samples in microscopic thin-sections, cutting views and diagrams that illustrate how the samples were subdivided for scientific analyses, and in situ views of the samples on the lunar surface. The atlas contains information about the type of sample (e.g., rock, soil), the lithology (e.g., basalt, norite), and a description of the sample.

Tags: circulation, imagery, space-science, wise
Organization: National Aeronautics and Space Administration
Goddard Earth Sciences Data and Information Services Center (GES DISC)

The NASA Goddard Earth Sciences (GES) Data and Information Services Center (DISC) is the home (archive) of Precipitation, Atmospheric Chemistry and Dynamics, and information, as well as data and information from other related disciplines.

Tags: airs, apps, atmospheres, aura, earth-science, giovanni, hurricanes, hydrology, imagery, mirador, precipitation, remote-sensing, sorce, trmm, visualization
Organization: National Aeronautics and Space Administration
Rodent Research-3-CASIS: Mouse adrenal gland transcriptomic proteomic and epigenomic data

The Rodent Research-3 (RR-3) mission was sponsored by the pharmaceutical company Eli Lilly and Co. and the Center for the Advancement of Science in Space to study the effectiveness of a potential countermeasure for the loss of muscle and bone mass that occurs during spaceflight. Twenty BALB/c 18-weeks old female mice (ten controls and ten treated) were flown to the ISS and housed in the AEM-X habitat for 39-42 days. Twenty mice of similar age sex and strain were used for ground controls housed in identical hardware and matching ISS environmental conditions. Basal controls were housed in standard vivarium cages. Spaceflight ground controls and basal groups had blood collected then were euthanized had one hind limb removed and finally whole carcasses were stored at -80 C until dissection. All mice in this data set received only the control/sham injection.

Tags: data-transformation, labeling, library-construction, mass-spectrometry, microgravity, nucleic-acid-extraction, nucleic-acid-sequencing, protein-extraction, sample-collection, spike-in-control, spike-in-control-protocol, treatment
Organization: National Aeronautics and Space Administration
AERONET-SDA Retrievals

The SDA dataset uses the spectral behavior of AOD to partition between fine and coarse modes, without a size-cutoff radius of the type used by the Dubovik and King [2000] inversion algorithm. The SDA data are derived from the direct-Sun observations rather than almucantar scans. Datasets are available at annual, monthly and daily accrurals.

Tags: aerosols, clouds, earth-science, inversions, precipitable-water, radiation, satellite
Organization: National Aeronautics and Space Administration
Spaceflight effects on the mouse retina: Histological gene expression and epigenetic changes after flight on STS-135

We report the findings of an animal experiment onboard STS-135 investigating the molecular aspects of the impact of spaceflight on retinal biology by performing differential gene expression profiling between mice flown onboard STS-135 and their ground control counterparts.

Tags: absorbed-radiation-dose, data-collection, labeling, normalization-data-transformation, nucleic-acid-hybridization, radiation-dosimetry, rna-extraction, sample-collection, spaceflight
Organization: National Aeronautics and Space Administration
Burn Scar - Corrected Reflectance (VIIRS / Suomi-NPP)

This visualization represents a "false color" band combination (M11-I2-I1 | Red-Green-Blue) of data collected by the VIIRS instrument on the Suomi-NPP satellite and is useful for distinguishing burn scars from naturally low vegetation or bare soil.

Tags: geospatial, viirs
Organization: National Aeronautics and Space Administration
Moderate Resolution Imaging Spectroradiometer (MODIS) - Terra

This dataset represents multiple products archived at the multiple archive centers for the MODIS (Moderate Resolution Imaging Spectroradiometer) instrument aboard the Terra Satellite. This dataset is provided by NASA EOSDIS as a single point of entry for this suite of products. The provided access URL is link to EOSDIS's Earthdata Search tool with a pre-populated query that will bring up all products archived by EOSDIS with imagery provided by the MODIS instrument on Aqua.

Tags: aerosols, atmosphere, atmospheric-radiation, atmospheric-water-vapor, clouds, cryosphere, earth-science, hydrosphere, imagery-theme, land-surface, land-temperature, national-geospatial-data-asset, ngda, oceans, sea-ice, snow-ice, surface-radiative-properties
Organization: National Aeronautics and Space Administration
Cloud-Precipitation Hybrid Regimes (MODIS-IMERG) in 15S-15N

Cloud-Precipitation Hybrid Regimes with MODIS C6.1 2D joint histogram of CTP and COT (total 42 bins) and IMERG v06B precipitation histogram (total 6 bins) derived in 15S-15N domain.

There are 4 kinds of regime sets:
1) Cloud only (42bin), 
2) Cloud+Precipitation with weight 1 (Cld42+Pr6x1), 
3) Cloud+Precipitation with weight 3 (Cld42+Pr6x3), 
4) Cloud+Precipitation with weight 7 (Cld42+Pr6x7; equal weight).

File list:
- MODIS_t+a_cld_hist_15S-15N_CR_set.Cld42.nc
- MODIS_t+a_cld+pr6x1_hist_15S-15N_CPR_set.Cld42+Pr6x1.nc
- MODIS_t+a_cld+pr6x3_hist_15S-15N_CPR_set.Cld42+Pr6x3.nc
- MODIS_t+a_cld+pr6x7_hist_15S-15N_CPR_set.Cld42+Pr6x7.nc
- MODIS_t+a_cld+pr6x7_hist_15S-15N_CPR_projected2IMERGdomain.Cld42+Pr6x7.nc

Tags: cloud, cloud-precipitation-hybrid-regime, cloud-regime, imerg, modis, precipitation
Organization: National Aeronautics and Space Administration