PPT-Field-Scale N Application Using Crop Reflectance Sensors

Ken Sudduth and Newell Kitchen USDAARS Translating Missouri USDAARS Research and Technology into Practice A training session provided by USDAARSCSWQRU 1011 October 2012 Columbia MO. source sensor surface element normal brPage 3br BRDF Bidirectional Reflectance Distribution Function T I source viewing direction surface element normal incident direction I T I T surface I T surface I T Irradiance at Surface in direction I T Radian Ritva. A. Keski-Kuha, Charles W. Bowers, Manuel A. Quijada. NASA/Goddard Space Flight Center. James B. Heaney, SGT Inc. Greenbelt. Benjamin Gallagher, Ball. . Aerospace & Technologies Corp. Andrew McKay Northrop Grumman Aerospace Systems. Potentiometers are a convenient method of converting the displacement in a . sensor to an electrical variable.. The wiper or slider arm of a linear potentiometer can be mechanically connected to the moving section of a sensor.. Dan . Sauceda. Outline. Information on the Region. Data Information. Reflectance Equations. MODIS Images. NDVI. Conclusions. Information on the Region. Latitude: 0. ˚N, -12˚S. Longitude: -56˚. E, -72. otations. , and green . manures. Mark Pavek - WSU. Pre-cropping practices. Crop rotation. Green manures. Field selection. Field preparation. Crop Rotation – What and Why?. Same field – different crop each year. Remote sensing measures reflected “light” (EMR). Different materials reflect EMR differently. Basis for distinguishing materials. Reflectance. Learning Objectives. Be able to define reflectance qualitatively and quantitatively.. Spatial. Spatial. Hyperspectral Sensing . – Imaging Spectroscopy. What is Hyperspectral Sensing?. Z = Spectral Bands. X. Y. Data Cube. – a way to visualize the data. Multispectral. Hyperspectral. and Model Performance. ATMS 792 – Remote Sensing. Outline. Data used / Domain of study . / Hypothesis. Model algorithm. How does this model perform for our region?. 2-D spatial . plots . Scatter . plots. is a . sensor.  able to detect the presence of nearby objects without any physical contact.. How do the work . The object being sensed is often referred to as the proximity sensor's . target. Pulsing out a signal and receiving an input from it’s output. Or Just Sensors . Rick Hu, MD,FRCSC. CEO/Founder. Vivametrica . Rick@vivametrica.com. Adoption of Technology and Analytics Over Time . Sensors are becoming Ubiquitous. Big Data/Sensors. Meteorological Information. Power Packs. Introduction to Sensors. An occupancy sensor is a control device that detects occupancy and turns lighting (or other equipment) on or off automatically. . Occupancy . sensors continue to rank among the most popular component for lighting control solutions on the market today. Chengquan. Huang. 1,2. . Min Feng. 1,2. , . Joseph O. . Sexton. 1,2. , . Raghuram. . Narasimhan. 1,2. , . Saurabh. . Channan. 1,2. , Jeff . Masek. 3. , Eric . Vermote. 2. , . Feng. Gao. 4. , John Townshend. Basic Concept. : Crop Grouping is used to facilitate the establishment of pesticide tolerances for a large number of crops based on residue data from selected representative crops. Crop Group. : A group of crops that are botanically or taxonomically related.. Carol J. Bruegge. Science driver: . The radiometric response of sensors change with time, and must be updated during the mission life. For example, Orbiting Carbon Observatory (OCO) requires 5% radiometric uncertainty in order to meet its XCO2 retrieval uncertainty of 1 ppm. Vicarious calibration provides this, but for sensors that view off-nadir, such as OCO, a necessary input is a model of the test site bi-directional reflectance factor (BRF)..