AndreaBozzo/ceres-open-data-index huggingface dataset:
Sounder SIPS: AQUA AIRS IR   MW Level 3 CLIMCAPS : Specific Quality Control Gridded Daily V2 at GES DISC

WARNING: Users of the derived product “co_mmr_midtrop” (carbon monoxide mass mixing ratio to dry air [kg/kg] at ~500 hPa). This variable has a significant bias due to a conversion error: the molecular weight of carbon dioxide (CO2, 44.01 g/mol) was used instead of carbon monoxide (CO, 28.01 g/mol). To correct, simply multiply “co_mmr_midtrop” by 28.01/44.01. Alternatively, derive a profile of mass mixing ratio from scratch using the retrieved column density values (“mol_lay/co_mol_lay”) in the Level 2 files. For further questions or concerns please contact the Sounder SIPS at: sounder.sips@jpl.nasa.gov

The CLIMCAPS (Community Long-term Infrared Microwave Coupled Product System) algorithm is used to analyze data from the AIRS (Atmospheric Infrared Sounder) and AMSU (Advanced Microwave Sounding Unit). The AIRS instrument is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. The AIRS in combination with the AMSU constitutes an innovative atmospheric sounding group of infrared and microwave sensors. The AIRS Standard Retrieval Product consists of retrieved estimates of cloud and surface properties, plus profiles of retrieved temperature, water vapor, ozone, carbon monoxide and methane. The temperature profile vertical resolution is 100 levels total between 1100 mb and 0.1 mb, while moisture profile is reported at atmospheric layers between 1100 mb and 300 mb. The horizontal resolution is 50 km.
 
The CLIMCAPS algorithm uses an Optimal Estimation methodology and uses an a-priori first guess to start the process. A CLIMCAPS sounding is comprised of a set of parameters that characterizes the full atmospheric state and includes a variety of geophysical parameters derived from the CrIMSS data. These include surface temperature and infrared emissivity; full atmosphere profiles of temperature, water vapor and ozone; infrared effective cloud top characteristics; carbon monoxide, methane, carbon dioxide, sulfur dioxide, nitrous oxide, and nitric acid.

This daily one degree latitude by one degree longitude level-3 product starts with level-2 retrieval products applying the specific quality control (QC) methodology. Specific QC accepts profile level from the top of the atmosphere down to the level where the QC determines that it is still good. Below this level, the data is rejected.

Tags: air-quality, altitude, atmosphere, atmospheric-chemistry, atmospheric-pressure, atmospheric-radiation, atmospheric-temperature, atmospheric-water-vapor, clouds, earth-science, land-surface, ocean-temperature, oceans, precipitation, surface-radiative-properties, surface-thermal-properties
Organization: National Aeronautics and Space Administration
Compact Fiber Optic Strain Sensors (cFOSS) Element

&lt;p&gt;Armstrong researchers are reducing the Fiber Optic Sensing Sysme (FOSS) technology&amp;rsquo;s size, power requirement, weight, and cost to effectively extend opportunities for broader fields of application. Unlike current commercially available systems, which are limited by the number of fibers that are interrogated simultaneously, Armstrong&amp;rsquo;s cFOSS technology maintains its multi-fiber capability (four or eight fibers) while providing a smaller overall form factor. FOSS is the size of a shoebox and weighs 28.5 pounds; cFOSS will be the size of a 6-inch cube and weigh less than 10 pounds. Each component within the system has been custom-designed specifically for miniaturization, thus reducing capital costs. As industries strive for ever smaller profiles, this miniaturization will be an important benefit for multiple markets. For example, small aviation UAVs would benefit significantly from this smaller, more compact, and lightweight package.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Work to date: &lt;/strong&gt;In partnership with the AERO Institute, researchers have flown the cFOSS v1.0 system, a convection-cooled 5-lb version, on a small UAV, interrogating four fibers simultaneously.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Looking ahead: &lt;/strong&gt;By the end of December 2015, cFOSS v2.0, with conduction cooling, will fly on an Antares rocket.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Benefits&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;Cost-efficient:&lt;/strong&gt; Each component within the&amp;nbsp;system has been custom designed specifically&amp;nbsp;for miniaturization, thus reducing capital costs&lt;/li&gt;&lt;li&gt;&lt;strong&gt;Compact:&lt;/strong&gt; The miniaturized size requires less&amp;nbsp;associated hardware than existing systems&lt;/li&gt;&lt;li&gt;&lt;strong&gt;Reliable:&amp;nbsp;&lt;/strong&gt;Components are customized for aggressive environments yet maintain a compact form factor&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;&lt;strong&gt;Applications&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;Aeronautics and launch vehicles&lt;/li&gt;&lt;li&gt;Medical procedures&lt;/li&gt;&lt;li&gt;Drilling&lt;/li&gt;&lt;li&gt;Wind energy&lt;/li&gt;&lt;li&gt;Automotive testing&lt;/li&gt;&lt;li&gt;Industrial processes&lt;/li&gt;&lt;/ul&gt;

Tags: active, armstrong-flight-research-center, cfoss, element
Organization: National Aeronautics and Space Administration
IceBridge Watson-Gyro Fluxgate Magnetometer L1B Time-Tagged Magnetic Field V001

This data set contains time-registered Level-1B field readings taken over Antarctica using the Watson-Gyro Fluxgate Magnetometer instrument. The data were collected as part of Operation IceBridge funded aircraft survey campaigns.

Tags: earth-science, geomagnetism, solid-earth
Organization: National Aeronautics and Space Administration
HIRENASD Experimental Data

Experimental Data for HIRENASD configuration

Zip files below contain the experimental data for the pressure coefficients, both the static and the forced oscillation test cases.  

Tecplot files include both the ascii data files and the layout files.
Matlab files contain the data in structures.

Please download the documentation found in the Support/Documentation area of this page for descriptions of the file contents, including variable names and calculation methods.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
EnviroAtlas - New Haven, CT - Proximity to Parks

This EnviroAtlas dataset shows the approximate walking distance from a park entrance at any given location within the EnviroAtlas community boundary. The zones are estimated in 1/4 km intervals up to 1km then in 1km intervals up to 5km. Park entrances were included in this analysis if they were within 5km of the community boundary. This dataset was produced by the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

Tags: communities, connecticut, ct, ecosystem, ecosystem services, enviroatlas, environment, environmental atlas, human well-being, new haven, recreation
Organization: U.S. Environmental Protection Agency
IceBridge LVIS-GH L2 Geolocated Surface Elevation Product V001

This data set contains surface elevation data measured by the NASA Land, Vegetation, and Ice Sensor (LVIS), an airborne lidar scanning laser altimeter, aboard the Global Hawk Unmanned Aerial Vehicle. The data were collected as part of NASA Operation IceBridge funded campaigns.

Tags: earth-science, land-surface, topography
Organization: National Aeronautics and Space Administration
SnowEx23 Mar22 IOP Snow Depth Measurements V001

The data set contains snow depth measurements from two regions of Alaska, USA collected during the March 2022 intensive observation period (IOP) as part of the NASA SnowEx 2023 field campaign. The study sites include three boreal forest sites in the Fairbanks region of central Alaska (the Bonanza Creek Experimental Forest, Caribou Poker Creek watershed, and Farmer’s Loop/Creamer’s Field) and a coastal tundra site in the North Slope region (Arctic coastal plain). Snow depth measurements collected from the study sampling sites during the subsequent field season are available as <a href="https://nsidc.org/data/snex23_mar23_sd/versions/1">SnowEx23 Mar23 IOP Snow Depth Measurements, Version 1</a>.

Tags: cryosphere, earth-science, snow-ice
Organization: National Aeronautics and Space Administration
Classification of Aeronautics System Health and Safety Documents

Most complex aerospace systems have many text reports on safety, maintenance, and associated issues. The Aviation Safety Reporting System (ASRS) spans several decades and contains over 700 000 reports. The Aviation Safety Action Plan (ASAP) contains over 12 000 reports from various airlines. Problem categorizations have been developed for both ASRS and ASAP to enable identification of system problems. However, repository volume and complexity make human analysis difficult. Multiple experts are needed, and they often disagree on classifications. Even the same person has classified the same document differently at different times due to evolving experiences. Consistent classification is necessary to support tracking trends in problem categories over time. A decision support system that performs consistent document classification quickly and over large repositories would be useful. We discuss the results of two algorithms we have developed to classify ASRS and ASAP documents. The first is Mariana---a support vector machine (SVM) with simulated annealing, which is used to optimize hyperparameters for the model. The second method is classification built on top of nonnegative matrix factorization (NMF), which attempts to find a model that represents document features that add up in various combinations to form documents. We tested both methods on ASRS and ASAP documents with the latter categorized two different ways. We illustrate the potential of NMF to provide document features that are interpretable and indicative of topics. We also briefly discuss the tool that we have incorporated Mariana into in order to allow human experts to provide feedback on the document categorizations.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Suomi-NPP VIIRS Level-3 Global Binned 11µm Nighttime Sea Surface Temperature (NSST) - 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
SMAP L2 Radar/Radiometer Half-Orbit 9 km EASE-Grid Soil Moisture V003

This Level-2 (L2) soil moisture product provides estimates of global land surface conditions retrieved by both the Soil Moisture Active Passive (SMAP) radar and radiometer during 6:00 a.m. descending half-orbit passes. SMAP L-band backscatter and brightness temperatures are used to derive soil moisture data, which are then resampled to an Earth-fixed, global, cylindrical 9 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0).

Tags: earth-science, land-surface, microwave, radar, soils, spectral-engineering
Organization: National Aeronautics and Space Administration
Sentinel-3B OLCI Level-3B Global Binned Earth-observation Reduced Resolution (ERR) Chlorophyll (CHL) - Near Real-time (NRT) Data, version R2022.0

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: atmosphere, atmospheric-radiation, earth-science, ocean-optics, oceans
Organization: National Aeronautics and Space Administration
Cryogenic Liquid Level-Sensing using Fiber-Optic Strain Sensor (FOSS) Technology Project

&lt;p&gt;Armstrong innovators have developed a highly accurate method for measuring liquid levels using optical fibers. Unlike liquid level gauges that rely on discrete measurements to give broad approximations of liquid levels, Armstrong&amp;rsquo;s novel method provides measurements at &amp;frac14;-inch intervals within a tank. The system uses fiber optic Bragg sensors located along a single fiber optic cable. These sensors actively discern between the liquid and gas states along a continuous fiber to pinpoint the liquid level. This significant leap forward in precision and accuracy in liquid level sensing offers significant benefits to many industries. Designed to monitor a rocket&amp;rsquo;s cryogenic fuel levels, the technology can be used in many medical and industrial applications.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Work to date&lt;/strong&gt;: The technology has been demonstrated in multiple environments using conventional validation techniques. First, water level measurements have been conducted to demonstrate operation within a benign environment. Second, liquid level measurements were conducted in liquid nitrogen using a 6-foot dewer. Measurements also were conducted within a liquid hydrogen environment using a 4-foot dewer. The technology performed well in all three cases, demonstrating the ability to measure liquid to &amp;frac14; inch.&amp;nbsp;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Looking ahead&lt;/strong&gt;: The team continues to push the fields of application with future tests to determine boundary layers between different fluids such as oil and water. Also there are planned opportunities to demonstrate the technology in a NASA-operated cryogenic test bed, simulating a cryogenic fuel management scenario.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;&lt;em&gt;Benefits&lt;/em&gt;&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;&lt;strong&gt;Precise&lt;/strong&gt;: Can gauge liquid levels within a &amp;frac14;-inch&lt;/li&gt;&lt;li&gt;&lt;strong&gt;Simple&lt;/strong&gt;: Requires just one fiber optic strand and one metallic wire, as opposed to conventional measurement systems, which require many more wires&lt;/li&gt;&lt;li&gt;&lt;strong&gt;Safe&lt;/strong&gt;: Is not susceptible to electromagnetic interference (EMI)&lt;/li&gt;&lt;li&gt;&lt;strong&gt;Robust&lt;/strong&gt;: Can be used in corrosive or toxic liquids without damaging the fiber or contaminating the liquid&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;&lt;strong&gt;&lt;em&gt;Applications&lt;/em&gt;&lt;/strong&gt;&lt;/p&gt;&lt;ul&gt;&lt;li&gt;Aerospace launch vehicles and satellites&lt;/li&gt;&lt;li&gt;Chemical and refinery plants&lt;/li&gt;&lt;li&gt;Industrial tanks&lt;/li&gt;&lt;/ul&gt;

Tags: active, armstrong-flight-research-center, cryofoss, project
Organization: National Aeronautics and Space Administration
Multi-Resolution Land Characteristics

The Multi-Resolution Land Characteristics (MRLC) project was established to provide multi-resolution land cover data of the conterminous United States from local to regional scales.  A major component of MRLC is an objective to develop a national 30-meter land cover characteristics data base using Landsat thematic mapper (TM) data.  This is a cooperative effort among six programs within four U.S. Government agencies, including the U.S. Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program; the U.S. Geological Survey's (USGS) National Water Quality Assessment Program; the National Biological Service's Gap Analysis Program; the USGS' Earth Resources Observation Systems (EROS) Center; the National Oceanic and Atmospheric Administration's Coastal Change Analysis Program; and the EPA's North American Landscape Characterization project.

Multitemporal scenes were selected for the eastern deciduous forests, agricultural regions, and selected other regions.  Multitemporal pairs were selected to be in consecutive seasons (in 1992 when possible).  All scenes were previewed for image quality.

The participating agencies organized the joint purchase of a single national set of Landsat TM scenes.  In addition, the cooperators developed a common definition for preprocessing the satellite data.  The shared, consistently processed TM data are the foundation for the development of the national 30-meter land cover data base.  The jointly acquired data are archived and distributed by EROS.  A variety of products are available to MRLC participants, to their affiliated users, and to the general public.

Multi-Resolution Land Characterization 2001 (MRLC 2001) At-Sensor Reflectance Dataset is a second-generation federal consortium to create an updated pool of nation-wide Landsat imagery, and derive a second-generation National Land Cover Database (NLCD 2001).

The MRLC 2001 data cover the United States, including Alaska and Hawaii. Multi-temporal scenes may also be available, depending on the location. Most of the images are of high quality, and cloud cover is generally less than ten percent. The data will also include a 30-meter Digital Elevation Model (DEM) for all scenes that do not include the Canadian or Mexican borders.

Tags: earth-science, environmental-governance-management, human-dimensions, infrared-wavelengths, land-surface, land-use-land-cover, spectral-engineering, visible-wavelengths
Organization: National Aeronautics and Space Administration
ADAPTIVE MODEL REFINEMENT FOR THE IONOSPHERE AND THERMOSPHERE

ADAPTIVE MODEL REFINEMENT
FOR THE IONOSPHERE AND THERMOSPHERE

ANTHONY M. D’AMATO∗, AARON J. RIDLEY∗∗, AND DENNIS S. BERNSTEIN∗∗∗

Abstract. Mathematical models of physical phenomena are of critical importance in
virtually all applications of science and technology. This paper addresses the problem of
how to use data to improve the fidelity of a given model. We approach this problem using
retrospective cost optimization, a novel technique that uses data to recursively update an
unknown subsystem interconnected to a known system. Applications of this research are
relevant to a wide range of applications that depend on large-scale models based on firstprinciples
physics, such as the Global Ionosphere-Thermosphere Model (GITM). Using
GITM as the truth model, we demonstrate that measurements can be used to identify
unknown physics. Specifically, we estimate static thermal conductivity parameters, and
we identify a dynamic cooling process.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
NEW RSW & Wall Coarse Mixed Element Grid

This is the Coarse Mixed Element Grid for the RSW with a viscous wall at the root.  This grid is for a node-based unstructured solver.

Quad Surface Faces=      9728
Tria Surface Faces=    100398
Nodes             =   2859048
Total Elements    =   6775906
Hex Elements      =         0
Pent_5 Elements   =     13903
Pent_6 Elements   =   5086383
Tet Elements      =   1675620
BL Tet Elements   =     13675

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

Station position and Earth Orientation Parameters (EOPs) solutions derived from analysis of Satellite Laser Ranging (SLR) data. These products are the generated by analysis centers in support of the International Laser Ranging Service (ILRS) and combined by the ILRS analysis coordinator to form the official ILRS EOP and station position product (daily and weekly).

Tags: nasa
Organization: National Aeronautics and Space Administration
Terra MODIS Level-2 Regional 11µm Day/Night Sea Surface Temperature (SST) - Near Real-time (NRT) Data, version R2019.0

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, national-geospatial-data-asset, ngda, ocean-temperature, oceans
Organization: National Aeronautics and Space Administration
TROPICS03 L2B Neural-network Atmospheric Vertical Temperature & Moisture Profiles 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.

This dataset is the Level-2B Neural Network Atmospheric Vertical Profiles (NNAVP) – Neural Network vertical profile retrieval approach for temperature profiles in Kelvin (K) and water vapor mixing ratio profiles in (kg/kg).  Retrievals are done in all non and precipitating conditions, over both land and ocean. Temperature profiles go from surface to 20 km and water profiles from surface to 10-km. The geophysical retrieval of atmospheric vertical temperature is at the larger unified F-band spatial resolution while the retrieval of vertical moisture is at the finer G-band spatial resolution. Each TROPICS netCDF file contains a granule of data with 81 spots and approximately 2880 scans, where a granule is defined as an orbit's worth of data.

Tags: earth-science, microwave, spectral-engineering
Organization: National Aeronautics and Space Administration
Aerospace Example

This is a textbook, created example for illustration purposes.

The System takes inputs of Pt, Ps, and Alt, and calculates the Mach number using the Rayleigh Pitot Tube equation if the plane is flying supersonically.  (See Anderson.)  The unit calculates Cd given the Ma and Alt.

For more details, see the NASA TM, also on this website.

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