The NEON Airborne Observation Platform (AOP) is an aircraft platform carrying remote sensing instrumentation designed to achieve sub-meter to meter scale ground resolution, bridging scales from organisms and individual stands of vegetation to satellite-based remote sensing.
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Since 2013, AOP has conducted a series of engineering flight campaigns at select NEON domains for the purpose of 1) testing the nominal data collection parameters for these sites; and 2) evaluating data processing techniques and obtain prototype datasets that support spatial/temporal scaling studies by the research community. The remote sensing data collected during these campaigns have been processed and several first level engineering data products are available for distribution. Since these data were collected as part of Engineering Flight Campaigns, they are considered “engineering quality” and may not have sufficient QA/QC to meet all users’ needs.
Airborne Data Types
Each AOP payload consists of a visible to shortwave infrared imaging spectrometer, a scanning small-footprint waveform LiDAR for three-dimensional canopy structure measurements, and a high resolution airborne digital camera for fine-scale land use and cover identification. AOP flight campaigns are designed to collect quantitative information on land use change and changes to ecological structure and chemistry, including the presence and effects of invasive species across landscapes 100-300km2 surrounding NEON sites.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) is developing radar technology that, for the first time, will enable a three-dimensional visual representation of forest areas from the roots to the crowns. The radar experts at DLR partnered with the US aerospace agency NASA in a measurement campaign, which has now confirmed the capability of the F-SAR system. The cooperation was aimed at validating the suitability of the radar data to infer a variety of parameters, including a forest’s height or vertical structure. A tangle of treetops and branches, through which just the occasional clear area provides glimpses of the trunks and roots growing below. Whether it is woodland with German spruces or a tropical rainforest, very few sensors are able to see through this green carpet and clearly visualise the underlying structures.
“The collaboration with NASA allowed us to really test both the sensor technology and the algorithms. We could not have hoped for better results,” said Andreas Reigber, project coordinator at the DLR Microwaves and Radar Institute.
The DLR Microwaves and Radar Institute is currently preparing for Biomass, a European Space Agency (ESA) satellite-based mission that will conduct radar observations of Earth’s surface. The main focus of the mission is to determine the volume of biomass in the tropical rain forests. In addition, the Institute is at the forefront ofTandem-L, a highly innovative satellite mission tasked with using radar to record the dynamic processes unfolding on Earth’s surface. Together, these projects promise a level of scientific insight one would not necessarily expect from flying over an area of woodland.
Remote Sensing Systems has just released the GPM Microwave Imager (GMI) ocean product suite.
The Global Precipitation Measurement (GPM) satellite has a microwave radiometer onboard called GMI (GPM Microwave Imager). The GPM satellite was launched on February 27th, 2014 with the GMI instrument started a few days later. One of the primary differences between GPM and other satellites with microwave radiometers is the orbit, which is inclined 65 degrees, allowing a full sampling of all local Earth times repeated approximately every 2 weeks.
One can browse the global images or download the data files. Please be sure to read the full description of the data products. Data are available from March 4, 2014 to the present processed as Version 8.1 data. Products are available within 12 hours of instrument observation.
Determined to utilise the allocated Godavari waters fully, the state government has decided to carry out a topographical survey of the length and breadth of the stretch of river passing through the state.
The topographical survey of Godavari will be taken up right from Sripada Yellampally project site to Dummugudem project site. The irrigation department has proposed to get the stretch of Godavari in the state surveyed for several uses like development of water resources and for scientific studies.
“We want to utilise Godavari waters fully. The survey is intended to identify where check dams could be constructed and how the water could be diverted,” engineer-in-chief C Muralidhar told Express.
The topographical studies will be carried out by using geospatial survey technology. The state government has also decided to utilise Lidar technology to conduct a study on the Pranahita-Chevella project. Lidar technology will be limited to the proposed Medigadda barrage near Kaleswaram, whereas the topographical survey will be carried out on the entire stretch of Godavari in the state, officials said.
The barrage alignment at Medigadda, the alignment of proposed canal from Medigadda to Yellampalli will be decided through the latest Lidar technology.
The Sentinel-1 Scientific Data Hub provides free and open access to a Rolling Archive of Sentinel-1 Level-0 and Level-1 user products.The S-1 Scientific data Hub Rolling Archive maintains the latest 2 months of products for download via HTTP. Anyone can register online via self-registration. The self-registration process is automatic and immediate. Registration grants access rights for searching and downloading Sentinel-1 products. Sentinel-1 products are available at no cost for anybody. The data available through the Data Hub is governed by the Terms and Conditions of the use and distribution of Sentinel data, which the User is deemed to have accepted by using the Sentinel data.
Services provided by the portal
Full-text Search and Saved Search Queries
Search query on the products stored on the rolling archive and filtering of results via a full-text search bar. Predefined search filters for the different acquisition modes, product types, product levels and geographical areas. “Make your own” search via specific semantics (boolean operators and wildcards). Text search query can be saved and used for activating the e-mail notification service and for batch scripting.
Products Online Inspection
Online inspection of the searched products by browsing and pre-viewing the product metadata and measurements without downloading it. A preview panel displays information on the product contents and structure.
Products Download and quota
Sentinel-1 products are provided for download via HTTP in the .ZIP archive file format. Compression is not applied. Click and download, shopping cart, batch download. A maximum of 2 concurrent downloads per user is allowed in order to ensure a download capacity for all users.
The Data Hub exposes the Open Data Protocol ( OData) interface for accessing the EO data stored on the rolling archive. This protocol is based on top of the well-supported HTTPS/ REST transfer protocol that can be handled by a large set of client tools as simple as common Web browsers, download-managers or computer programs such as cURL or wget. The Odata protocol provides easy access to the Data Hub and can be used for building URI for performing search queries and product downloads offering to the users the capability to remotely run scripts in batch mode.
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The ArcGIS Book was written for a diverse audience, including GIS professionals just venturing into the new world of web GIS as well as web technologists, information workers, web designers, and others who increasingly recognize how maps play a pivotal role today in clearly communicating information. The book also serves as a perfect introduction to web GIS for managers and executives interested in understanding how maps can help them make sound business decisions for their organizations.
Explore ten “big ideas” that encapsulate the technological and social trends that have pushed geographic information systems (GIS) onto the Internet in a significant way. See how to apply these ideas to your own world. Open your eyes to what is now possible with Web GIS, and put the technology and deep data resources in your hands via the Quickstarts and Learn ArcGIS lessons that are included in each chapter.
This book helps you understand and use Web GIS, a powerful mapping technology that is transforming the way we apply and share geographic information. Each “big idea” is part of the ArcGIS platform and it’s big because it empowers you, enabling you to do new things and to accomplish familiar tasks more quickly and with ease.
This is a hands-on book that you work with as much as read. By the end, usingLearn ArcGIS lessons, you’ll be able to say you made a story map, conducted geographic analysis, edited geographic data, worked in a 3D web scene, built a 3D model of Venice, and more.
Trimble’s Geospatial Division has become a sponsor of the LASzip compressor. Their contribution as a Bronze sponsor will improve the existing “LAS 1.4 compatibility mode” of LASzip whose creation and maintenance is already being supported by Gold sponsor NOAA and Bronze sponsor Quantum Spatial. The original Gold sponsor of the open source LASzip compressor was USACE – the US Army Corps of Engineers (see http://laszip.org).
The “LAS 1.4 compatibility mode” was created to provide immediate support for compressing the new LAS 1.4 point types by rewriting them as old point types and storing their new fields as “Extra Bytes”. As an added benefit this allows older software (without LAS 1.4 support) to access the newpoint types of LAS 1.4 files that would otherwise be unreadable. All important fields of the new point types 6 to 10 (i.e. those fields that matter to older software) are mapped to the corresponding fields of the older known point types 1, 3, or 5.
About Trimble’s Geospatial Division:
Trimble’s Geospatial Division provides solutions that facilitate high-quality, productive workflows and information exchange, driving value for a global and diverse customer base of surveyors, engineering and GIS service companies, governments, utilities and transportation authorities. Trimble’s innovative technologies include integrated sensors, field applications, real-time communications and office software for processing, modelling and data analytics. Using Trimble solutions, organizations can capture the most accurate spatial data and transform it into intelligence to deliver increased productivity and improved decision-making. Whether enabling more efficient use of natural resources or enhancing the performance and lifecycle of civil infrastructure, timely and reliable geospatial information is at the core of Trimble’s solutions to transform the way work is done. Visit http://trimble.com/Industries/Geospatial/ for more information.