AndreaBozzo/ceres-open-data-index huggingface dataset:
Copy (2) Southwest Watershed Research Center Online Data Access

<p>Hydrologic data, primarily precipitation and runoff, have been collected on experimental watersheds operated by the U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) and on other lands in southeastern Arizona since the 1950s. These data are of national and international importance and make up one of the most comprehensive semiarid watershed data sets in the world. The USDA-ARS Southwest Watershed Research Center has recently developed an electronic data processing system that includes an online interface (<a href="https://tucson.ars.ag.gov/dap">https://tucson.ars.ag.gov/dap</a>) to provide public access to the data. The goal of the system is to promote analyses and interpretations of historic and current data by improving data access. The publicly accessible part of the system consists of an interactive Web site, which provides an interface to the data, and a relational database, which is used to process, store, and manage data. In addition, DAP was expanded to put sediment, meteorological, soil moisture and temperature, vegetation, CO2 and water flux, geographic information system (GIS) and aircraft and satellite spectral imagery data on line and to publish metadata for all WGEW long-term measurements. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: PDF File.</p> <p>File Name: WGEW Soil Survey.pdf, url: <a href="https://www.tucson.ars.ag.gov/dap/Files/WGEW Soil Survey.pdf">https://www.tucson.ars.ag.gov/dap/Files/WGEW Soil Survey.pdf</a> </p></li></ul><p></p>

Tags: aircraft-spectral-imagery, ars, co2-flux, data-gov, erosion, geographic-information-system, gis, hydrology, meteorology, precipitation, runoff, santa-rita-experimental-range, satellite-spectral-imagery, sediment, semi-arid, soil, soil-moisture, soil-temperature, upper-san-pedro-partnership, upper-san-pedro-river, vegetation, walnut-gulch-experimental-watershed, water-flux
Organization: Department of Agriculture
Data and Supplemental Figures from: Effect of pH adjustments on a novel micellar casein-based edible 3D printing formulation

<p dir="ltr">Three-dimensional (3D) food printing holds the potential to help reduce food waste by precise portion control and use of materials that are produced in excess or are otherwise discarded. This relatively new technology is likely to undergo decreases in equipment costs. To take advantage of such prospects, we developed a novel micellar casein–based edible 3D printing formulation. Our formulation relies on a highly concentrated micellar casein solution (27.75%, wt/wt, final) along with pH adjustments (3.5, 4.0, 4.8, 6.7, 7.2, and 8.2) at chilled temperature (4-9°C) to avoid premature aggregation. In comparison to the natural pH of 6.7, both alkalinization and acidification past the isoelectric point of 4.6 enhanced both elastic and viscous moduli that enable for shape retention during and after extrusion from a 3D food printer. However, alkalinization led to smaller increases in the viscous modulus and did not lead to the shape retention that acidification to 4.0 or 3.5 does. Both acidification and alkalinization also resulted in rougher surface textures compared with the formulation at pH 6.7. Whereas the pH 4.8 formulation had inferior shape retention qualities compared with those at the other pH values tested, it had optimized water resilience, defined here as minimized swelling and dissolution of dried structures placed in water. Overall, we present a novel casein-based 3D printing formulation that could be printed while chilled, and with properties that could be modified by pH adjustments.</p>

Tags: 3d-printing, extrusion-rate, microscopy, supplemental-file
Organization: Department of Agriculture
APEX – Agricultural Policy/Environmental eXtender Model

<p>Agricultural Policy/Environmental eXtender (APEX) has components for routing water, sediment, nutrients, and pesticides across complex landscapes and channel systems to the watershed outlet as well as groundwater and reservoir components.  A watershed can be subdivided as much as necessary to assure that each subarea is relatively homogeneous in terms of soil, land use, management, and weather.  APEX was constructed to evaluate various land management strategies considering sustainability, erosion (wind, sheet, and channel), economics, water supply and quality, soil quality, plant competition, weather, and pests. The routing of water, sediment, nutrient, and pesticide capabilities are some of the most comprehensive available in current landscape-scale models and can be simulated between subareas and channel systems within the model. APEX can perform long-term continuous simulations for modeling the impacts of different nutrient management practices, tillage operations, conservation practices, alternative cropping systems, and other management practices on surface runoff and losses of sediment, nutrients, and other pollutant indicators. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: APEX – Agricultural Policy/Environmental eXtender Model.</p> <p>File Name: Web Page, url: <a href="https://epicapex.tamu.edu/apex/">https://epicapex.tamu.edu/apex/</a> </p><p>Web site for the APEX model: describes components, capabilities, examples of applications, and download links for executables, source code, and supporting tools.</p></li></ul><p></p>

Tags: agricultural-policy-environmental-extender, apex, ars, data-gov, np211, np212, np215
Organization: Department of Agriculture
Management Zone Analyst Version 1.0 Software

<p>Management Zone Analyst (MZA) is a decision-aid for creating within-field management zones based on quantitative field information. It mathematically breaks up a field into natural clusters or zones based on the classification parameters and number of zones you specify.</p>
<p>Fertilizing crops more than they need increases the risk of nutrient contamination of water resources. Because many crop production fields are spatially variable in both soil nutrients and crop nutrient need, conventional uniform fertilizer rates often exceed requirements for some field areas. To better match applications to needs and improve nutrient use efficiency, cost-effective and efficient methods are needed to delineate sub-field management zones within which crop fertilizer needs are more uniform. In field-scale studies, we found that densely-spaced measurements of apparent soil electrical conductivity and GPSdetermined elevation were the most useful data for creating management zones related to potential crop productivity and nutrient need for claypan and claypan-like soils in the U.S. Midwest. Zones created from these sources were much more strongly related to yield map data than were traditional soil surveys. In response to requests from farmers and consultants, we developed a decision aid, Management Zone Analyst (MZA), to help them quickly process map information into management zones for variable-rate nutrient applications. The MZA software uses quantitative, georeferenced field information to mathematically divide a field into natural clusters or zones and also helps determine the optimum number of management zones for each field. Our approaches and software are widely used by researchers, commodity organization representatives, and agricultural consultants from at least 39 states and 35 foreign countries. </p>
<div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: Management Zone Analyst Version 1.0 Software.</p> <p>File Name: Web Page, url: <a href="https://www.ars.usda.gov/research/software/download/?softwareid=24&modecode=50-70-10-00" target="_blank">https://www.ars.usda.gov/research/software/download/?softwareid=24&modecode=50-70-10-00</a> </p><p>download page</p></li></ul>

Tags: computer-software, consultants, cost-effectiveness, crop-production, cropping-systems, crops, electrical-conductivity, farmers, fertilizer-rates, fertilizers, georeferencing, missouri, models, nutrient-use-efficiency, plant-science-and-plant-products, researchers, risk, soil, soil-nutrients, soil-surveys, united-states, water-pollution, water-quality, water-resources, yield-mapping
Organization: Department of Agriculture
SENTINEL-1B_DUAL_POL_GRD_MEDIUM_RES

Sentinel-1B Dual-pol ground projected medium resolution images

Tags: agriculture, biosphere, coastal-processes, cryosphere, earth-science, erosion-sedimentation, forest-science, frozen-ground, geomorphic-landforms-processes, glaciers-ice-sheets, land-surface, land-use-land-cover, landscape, ocean-waves, ocean-winds, oceans, sea-ice, snow-ice, solid-earth, surface-water, tectonics, terrestrial-ecosystems, terrestrial-hydrosphere, topography
Organization: National Aeronautics and Space Administration
SASS Twice-Daily SIR-Enhanced EASE-Grid 2.0 Radar Backscatter V001

This product contains twice-daily radar backscatter data collected at 14.6 GHz for horizontal-horizontal and vertical-vertical receive radar channels from the SeaSat-A satellite scatterometer (SASS) sensor. Data are available on the Northern Hemisphere, Southern Hemisphere, and Temperate EASE-Grid 2.0 projections as either 25 km or 3.125 km resolution grids. The data set uses the drop-in-the bucket gridding (GRD) and Scatterometer Image Reconstruction (SIR) algorithms to process the individual swath-based data into twice-daily morning and evening images. The GRD algorithm produces SAR images (high-resolution) on a 25 km grid and the SIR algorithm produces slice and footprint images (both lower-resolution) on a 3.125 km grid, provided at 8-,16-, 32-day imaging intervals. The data coverage is global from 7 July 1978 through 10 Oct 1978.

Tags: earth-science, radar, spectral-engineering
Organization: National Aeronautics and Space Administration
Land Surface Reflectance - GLS2000

The surface reflectance CDR is generated from specialized software called Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS). LEDAPS was originally developed through a National Aeronautics and Space Administration (NASA) Making Earth System Data Records for Use in Research Environments (MEaSUREs)grant by NASA Goddard Space Flight Center (GSFC) and the University of Maryland (Masek et al., 2006). The software applies Moderate Resolution Imaging spectroradiometer (MODIS) atmospheric correction routines to Level-1 Landsat Thematic Mapper (TM) or Enhanced Thematic Mapper Plus (ETM+)data.  Water,vapor, ozone, geopotential height, aerosol optical thickness,and digital elevation are input with Landsat data to the Second Simulation of a Satellite Signal in the Solar Spectrum (6S) radiative transfer models to generate top of atmosphere (TOA)reflectance, surface reflectance, brightness temperature, and masks for clouds, cloud shadows, adjacent clouds, land, and water.  The result is delivered as the Landsat surface reflectance CDR.

Tags: earth-science, land-surface, surface-radiative-properties, topography
Organization: National Aeronautics and Space Administration
Prognostics Approach For Power Mosfet Under Thermal-Stress Aging

The prognostic technique for a power MOSFET presented
in this paper is based on accelerated aging of MOSFET
IRF520Npbf in a TO-220 package. The methodology utilizes
thermal and power cycling to accelerate the life of the devices.
The major failure mechanism for the stress conditions is die attachment
degradation, typical for discrete devices with lead free
solder die attachment. It has been determined that die attach
degradation results in an increase in ON-state resistance
due to its dependence on junction temperature. Increasing
resistance, thus, can be used as a precursor of failure for the
die-attach failure mechanism under thermal stress. A feature
based on normalized ON-resistance is computed from in-situ
measurements of the electro-thermal response. An Extended
Kalman filter is used as a model-based prognostics techniques
based on the Bayesian tracking framework.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
TROPICS03 L2A Unified Resolution Brightness Temperatures 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 from the TROPICS03 satellite, as the Validated Stage-1 version of the Level 2A geolocated brightness temperature with the water vapor sounding channels (Ch. 9 to 12) converted from their native G-band resolution to the temperature sounding channel (F-band) native resolution (i.e., all measurements at the same unified larger resolution). This product is used in the Atmospheric Vertical Temperature Profile (AVTP) retrievals to gain the benefit of averaging the G-band channels (i.e., noise reduction) while maintain the F-band (AVTP) spatial resolution. The conversion uses the Backus-Gilbert technique. 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
Aqua MODIS Level-3 Global Mapped 11µm Nighttime Sea Surface Temperature (NSST) 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
Prognostics Design Solutions in Structural Health Monitoring Systems

The chapter describes the application of prognostic techniques to the domain of structural health and
demonstrates the efficacy of the methods using fatigue data from a graphite-epoxy composite coupon. Prognostics denotes the in-situ assessment of the health of a component and the repeated estimation of remaining life, conditional on anticipated future usage. The methods shown here use a physics-based modeling approach whereby the behavior of the damaged components is encapsulated via mathematical equations that describe the characteristics of the components as it experiences increasing degrees of degradation. Mathematical rigorous techniques are used to extrapolate the remaining life to a failure threshold. Additionally, mathematical tools are used to calculate the uncertainty associated with making predictions. The information stemming from the predictions can be used in an operational context for go/no go decisions, quantify risk of ability to complete a (set of) mission or operation, and when to schedule maintenance.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
Evaluating Algorithm Performance Metrics Tailored for Prognostics

Prognostics has taken center stage in Condition Based Maintenance (CBM) where it is desired to estimate Remaining Useful Life (RUL) of a system so that remedial measures may be taken in advance to avoid catastrophic events or unwanted downtimes. Validation of such predictions is an important but difficult proposition and a lack of appropriate evaluation methods renders prognostics meaningless. Evaluation methods currently used in the research community are not standardized and in many cases do not sufficiently assess key performance aspects expected out of a prognostics algorithm. In this paper we introduce several new evaluation metrics tailored for prognostics and show that they can effectively evaluate various algorithms as compared to other conventional metrics. Four prognostic algorithms, Relevance Vector Machine (RVM), Gaussian Process Regression (GPR), Artificial Neural Network (ANN), and Polynomial Regression (PR), are compared. These algorithms vary in complexity and their ability to manage uncertainty around predicted estimates. Results show that the new metrics rank these algorithms in a different manner; depending on the requirements and constraints suitable metrics may be chosen. Beyond these results, this paper offers ideas about how metrics suitable to prognostics may be designed so that the evaluation procedure can be standardized.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
SCR/Nimbus-4 Level 1 Radiance Data from CD-ROM V001 (SCRN4L1RAD_CDROM) at GES DISC

SCRN4L1RAD_CDROM is the gridded Nimbus-4 Selective Chopper Radiometer (SCR) Level 1 Radiance Data Product. The radiances are measured by 16 channels at 2.3 to 15 micrometers with a ground resolution of 25 km. The CD-ROM contains corrected radiances in a daily 4 degree latitude x 10 degree longitude grid format, as well as the original orbit format. The data for this product are available from 27 July 1970 to 2 November 1972. The principal investigator for the SCR experiment was Dr. John T. Houghton from Oxford University.

This product was created by the Oxford University's Atmospheric, Oceanic and Planetary Physics (AOPP) group. The data are stored on a single CD-ROM in ASCII files of hexadecimal characters, and are available in a single gzipped Unix tar archive file. The byte-ordering in the data files follows the DEC convention for 16-bit integers of less significant byte first. Normal 2's complement integer storage is assumed.

Tags: earth-science, infrared-wavelengths, spectral-engineering
Organization: National Aeronautics and Space Administration
Space Technology Research Grants Program

&lt;p&gt;
	The Space Technology Research Grants Program will accelerate the development of &amp;quot;push&amp;quot; technologies to support the future space science and exploration needs of NASA, other government agencies and the commercial space sector. Innovative efforts with high risk and high payoff will be encouraged. The program is composed of two competitively awarded components.&lt;/p&gt;

Tags: active, nasa-headquarters, program, strgp
Organization: National Aeronautics and Space Administration
AVHRR 1-km Orbital Segments

The Advanced Very High Resolution Radiometer (AVHRR) 1-km Orbital
       Segments data set is a component of the National Aeronautics and
       Space Administration (NASA) AVHRR Pathfinder Program and contains
       global coverage of land masses at 1-kilometer resolution.

       The data set is the result of an international effort to acquire,
       process, and distribute AVHRR data of the entire global land surface
       to meet the needs of the international science community.  The 
       orbital segments are comprised of raw AVHRR scenes consisting of
       5-channel, 10-bit, AVHRR data at 1.1-km resolution at nadir.  The raw
       data are used to produce vegetation index composites; to support fire 
       detection and cloud screening activities; to support research in
       atmospheric correction; to develop algorithms; and to support a host of
       research activities that may require the inclusion of raw AVHRR data.

Tags: earth-science, infrared-wavelengths, land-surface, land-use-land-cover, spectral-engineering, visible-wavelengths
Organization: National Aeronautics and Space Administration
Gazetteer of Planetary Nomenclature: Venus: 1:10 million-scale Altimetry Quadrangles: Lada

This set of maps diplays altimetric radar images of Venus approved by the International Astronomical Union (IAU).

Tags: altimetry, imagery, images, planets, quadrangles, radar, usgs, venus, working-group-for-planetary-system-nomenclature
Organization: National Aeronautics and Space Administration
UARS Improved Stratospheric and Mesospheric Sounder (ISAMS) Level 3AL V010 (UARIS3AL) at GES DISC

The Improved Stratospheric and Mesospheric Sounder (ISAMS) Level 3AL data product consists of daily, 4 degree increment latitude-ordered vertical profiles of temperature and concentrations of O3, H2O, CH4, CO, N2O, N2O5, NO2, and aerosol absorption coefficients. The insrument measured infrared molecular emmissions in the spectral region from 4.6 to 16.6 microns. ISAMS was flown on NASA's Upper Atmosphere Research Satellite (UARS) and designed to measure the global temperature and composition profiles in the stratosphere and mesosphere. Limb measurements were made in the altitude range between 15 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 ISAMS Level 3AL data were processed with the version 10 algorithm, except H2O which is version 9.

The ISAMS level 3AL product consists of 10 granules per day. A data granule is one ISAMS 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, ...

Each of the 10 ISAMS granules is accompanied by its own additional parameter file, designated as level 3LP. The parameter file, contains the additional ancillary and quality information not found in the 3AL file. 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
Likely Basal Thermal State of the Greenland Ice Sheet V002

The Likely Basal Thermal State of the Greenland Ice Sheet (GrIS) product contains key data sets that show how the likely basal thermal state was inferred from existing airborne and satellite data sets and recent methods, and provides a synthesis mask of the likely basal thermal state over the Greenland Ice Sheet.

Tags: earth-science, national-geospatial-data-asset, ngda, sensor-characteristics, spectral-engineering
Organization: National Aeronautics and Space Administration