Title: Area between Peaks Feature in the Derivative Reflectance Curve as a Sensitive Indicator of Change in Chlorophyll Concentration
Eric Ariel L. Salas, Geoffrey M. Henebry
Abstract: Vegetation spectral features can detect chlorophyll concentrations. Two key spectral features evident in the first derivative (FD) of reflectance constitute the two main peaks: one located around 685-705 nm and the other near 710-725 nm. We propose that the area between peaks (ABP) can be used as a sensitive indicator of changes in the photosynthetic pigments at leaf level and demonstrate it using a high-spectral-resolution dataset of maize leaves collected by Gitelson and coworkers (2005). We find significant high positive correlations (r2 > 0.90) between chlorophyll concentrations and both the ABP and its continuum length feature. Read more here.
Join now the American Geophysical Union (AGU) 2013 live streaming via Google+.
The following 5 Fall Meeting sessions begin at 10:20 am PST. Watch via Google+ (use code AGU13 for free access):
>>Glacier Hydrologic Change: Downstream Implications
>>IPCC Climate Change 2013: Assessment of the Future
>>Walter B. Langbein Lecture
The live AGU 2013 streaming is here.
Experience cities in 3D with the Bing Maps Preview app (now available from the Windows Store for Windows 8.1).
You can see the complete list of 3D cities via Bing. If you have the Bing Maps Preview app installed, you can click on any city image to go directly to the 3D city experience.
See the 3D Cities here.
Or watch the preview video:
The U.S. Geological Survey (USGS) and NASA will host a public meeting on December 4 in which both agencies will provide details about how user needs will be assessed to help inform NASA's Sustainable Land Imaging Program. User requirements will be a key consideration in the design and implementation of future space-borne systems that are intended to provide global, continuous Landsat-quality observations of Earth for at least the next 25 years.
The Users Forum will feature a structured methodology that USGS has been developing for acquiring and evaluating user requirements for Earth observation. USGS presenters at the forum will explain some preliminary findings and offer opportunities for feedback about the approach and the requirements gathered to date.
Both USGS and NASA value public participation in establishing long-term user needs for Landsat or equivalent Earth observation data. This is a notice of a meeting, not a solicitation of any kind.
Event: USGS/NASA Sustainable Land Imaging Users Forum
Time: 1:00 – 4:15 p.m. EST
Date: Wednesday, December 4, 2013
Location: NASA Goddard Visitors Center Auditorium, 8800 Greenbelt Road, Greenbelt, MD, 20771.
Registration: Online at NASA website.
The International LiDAR Mapping Forum (ILMF), taking place from February 17-19, 2014 in Denver, Colorado, has launched a dynamic conference program for its 2014 event. With world-leading experts presenting the latest advances in LiDAR, the conference will place delegates one step ahead with knowledge of up-to-the-minute research and commercial developments.The ILMF conference program reflects a market that is flourishing. Over 60 abstracts were submitted by major international contributors which were reviewed by the ILMF’s technical committee to produce a program that touches on new developments in all sectors of the industry. The three-day technical conference and exhibition focuses on airborne, terrestrial and bathymetric LiDAR with a particular emphasis on mobile mapping systems used to support transport, urban modelling, coastal zone mapping, utility asset management, 3D visualization and GIS applications. The full program with abstracts can be viewed here.
The program will include presentations on recent projects, with service providers describing real world examples of laser scanning in practice and sharing crucial lessons learned. One of the major benefits of ILMF is having the opportunity to discuss the state of the industry with peers, learn best practices and share ideas across the industry’s diverse business sectors. ILMF Director Lisa Murray said, “The Conference is focused on technology and how to maximize its performance for the benefit of the end user. The technical papers are being presented by world class speakers and businesses. Each paper is topical, wide-ranging and highly informative to delegates. Any professional at any level who is working in the geospatial community will find answers to their operational and management problems at ILMF. Whether you are involved in areas as diverse as urban and rural asset management, utilities maintenance, coastal and land mapping, railways, environmental impact assessment, 3D data capture and flood prevention, attending ILMF 2014 with industry colleagues and peers will prove a most informative and rewarding professional experience.”
The ILMF 2014 exhibition will have dozens of leading technology, software and service providers from around the world, adding extra benefits and value to the conference for all delegates. Exhibitors include the LiDAR and complementary sensor manufacturers, survey service companies, data processing, GIS and management specialists and the latest mobile mapping vehicles. In addition, there will be a series of technical workshops and live mobile mapping demonstrations to enable delegates to witness data capture methods in real time, and to learn about the latest advances in mobile and 3D capture applications, including integration with LIDAR and photogrammetry.
As in previous years, the American Society for Photogrammetry and Remote Sensing (ASPRS) will present ‘hot topics’ sessions which will provide an update on activities at the society associated with LiDAR and point cloud processing including presentation of the draft “ASPRS Accuracy Standards for Digital Geospatial Data.” Intended to be finalized in 2014, the new standards include accuracy thresholds for digital orthophotos and digital elevation data, independent of published map scale or contour interval.
Ms. Murray commented that the 2014 event will be fast-paced and informative for delegates at any stage of their professional career. She said that there will be numerous opportunities for networking with social events planned throughout.
Early Bird rates are available for delegates if they register by December 13, 2013. To take advantage of early registration, please visit https://www.xpressreg.net/register/ilmf024/start.asp.
Exprodat, the petroleum GIS services, software and training specialist has released Data Assistant, the latest addition to its Team-GIS suite of oil and gas software.
In any situation it is vital that all data is easily available and simple to use to ensure that the best possible decisions are made. This is especially true in oil and gas exploration, where the capital expenditure involved can be enormous.
Team-GIS Data Assistant provides exploration and production professionals with the tools they need to transfer data between commonly used oil and gas data formats and ArcGIS. Supported input formats include; Petrel, KINGDOM, SeisWorks, OpenWorks, Geographix, CPS3, IESX and UKOOA P1/90.
Once all of this data is transferred to the Esri environment, users are able to employ the powerful visualisation and spatial analysis capabilities that ArcGIS provides. Further, data can then be extracted from ArcGIS for further interpretation in dedicated sub-surface systems.
Exprodat’s Technical Director, Chris Jepps, explained more about the benefits of using the software; “Moving data from common E&P interpretation systems and ArcGIS has always proved a challenge. Team-GIS Data Assistant provides a pragmatic solution to this and has been designed with both the geoscientist and “GIS tech” in mind.
A simple wizard interface provides the geoscientist with an easy way to move data into ArcGIS in support of their workflows, while the more “GIS-centric” ArcToolbox and Python interfaces provide the geospatial specialist with powerful pre-, post- and batch processing capabilities. The first Data Assistant release focusses on integration between KINGDOM, Petrel, Landmark and ArcGIS, and we’ll be extending the tools with additional formats and data tools in future releases.”
Exprodat’s Team-GIS product suite is made up of a number of extensions to Esri’s ArcGIS Desktop that provide out-of-the-box functionality designed specifically for the needs of the petroleum sector.
To learn more about the Team-GIS Data Assistant please visit: www.exprodat.com/Software/TGDA.
GI_Forum 2014 – Geospatial Innovation for Society
July 1 – 4, 2014 | Salzburg, Austria
The GI_Forum 2014 provides a platform for dialogue among technologists and critical thinkers, GIScientists and educationalists in an ongoing effort to support the creation of an informed GISociety. A variety of presentations, workshops and exhibitions will concentrate on innovations in technologies, science and education in the spatial domain and their possible contribution to a more just, ethical and sustainable society.
Prominent keynote speakers will highlight new developments, offer insights into trends and visions, and at the same time be available for our Young Researchers' Corner for more individualised interaction with young researchers.
GI_Forum runs concurrently with the highly regarded German language conference on Applied Geoinformatics – AGIT (www.agit.at). The two symposia share some 1200 participants, the innovative AGIT EXPO exhibit and stimulating social events.
Submission deadline February 1, 2014. More information: www.gi-forum.org, Contact: email@example.com.