![]() While tide gauges also measure sea level, and can do so with the precision of a few millimeters, researchers attach them to land. Satellite altimeters have another advantage for measuring sea level. For instance, researchers are integrating nearshore altimeter data with tide gauge data to construct regional climate indicators for sea level change. Coupled with coastal observation systems, the regional granularity of the sea level change signal allows a better understanding of the local impacts of sea level rise. ![]() The continuous altimeter record from Jason satellites also provides essential information for understanding regional sea level change. The Jason altimeters measure sea level over the entire global ocean and therefore provide information at specific locations, along coastlines and across all the ocean basins. Jason satellites are equipped with altimeters, used to measure the altitude above a fixed location. This information is used by scientists and government agencies to develop long-range projections and ultimately for coastal planning purposes.ĭata from the Jason series of satellites provide more accurate measurements of local sea level changes than previous satellites and other tools. Jason observations also provide a way of estimating the increase in ocean volume caused by the melting of mountain glaciers and the Antarctic and Greenland ice sheets. More than 90 percent of the extra heat trapped in the Earth system by the greenhouse phenomenon is stored in the ocean, causing the ocean to expand and sea level to rise. The same observations averaged over a month or longer time interval also provide a way of monitoring global and regional sea level rise. These measurements are used by oceanographers to map the major currents (e.g., Gulf Stream), as well as smaller scale, turbulent “eddy” motions in the ocean, sometimes referred to as ocean “weather.” Jason satellites measure the surface topography of the ocean, producing a complete global grid of sea level observations every 10 days. The Jason missions provide a uniquely different kind of information from the other NOAA satellite missions (GOES and Suomi NPP). Subsequently, Jason-2/OSTM will be moved to different 9.9 day orbit to provide additional data coverage. In the first six months after launch, Jason-3 will be flown one minute behind Jason-2/OSTM, in order to detect any offsets between the missions. One way to help reach this goal is to avoid gaps in the data record by launching each new Jason satellite while the older Jason satellite is still operating properly. One of the primary objectives of the Jason program is to monitor sea level rise, a challenging task considering the need to maintain high levels of accuracy and precision from one satellite to the next over multiple decades of time. The orbital parameters are: 66.05 degree inclination, 1380 km apogee, 1328 km perigee, 112 minutes per revolution around the earth. To ensure continuity of the global sea level record, Jason-3 will fly in the same 9.9 day repeat track orbit as all previous Jason missions, meaning the satellite will make observations over the same ocean point once every 9.9 days. Sea surface height data from altimetry satellites like Jason-3 are also used to study hurricane intensity, tsunami dynamics, El Niño Southern Oscillation, eddy dynamics, ocean boundary currents, coastal and shallow water tides, as well as weather and climate forecasting. Jason-3 will make highly detailed measurements of sea surface height, which is a measure used to study sea level rise-a critical factor in understanding Earth’s dynamic climate. Jason-3 is an international cooperative mission in which NOAA is partnering with the Centre National d'Etudes Spatiales (CNES, France’s governmental space agency), European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), and National Aeronautics and Space Administration (NASA). Jason-3 follows the current operational altimeter satellite, Jason-2, in maintaining satellite altimetry observations of global sea surface height. Just need to provide the JSON content, it will generate the JsonPath list of all the elements present in the JSON string.Jason-3 is a satellite mission that supports scientific, commercial and practical applications related to sea level rise, ocean circulation, and climate change. This Json Path generator utility has been built up to generate all JsonPaths of a JSON string. JsonPath is used to refer any element in a JSON string.JsonPath is used in code to retrieve value from a JSON string.JsonPath generation and testing of any JSON path is very important.Evaluting a JsonPath or konwing the JsonPath is very common requirement in development project.
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