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Lurker

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Lurker last won the day on March 6

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About Lurker

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    Associate Professor
  • Birthday 02/13/1983

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    Male
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    INDONESIA
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    GIS and Remote Sensing

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  1. A recent analysis of the latest generation of climate models — known as a CMIP6 — provides a cautionary tale on interpreting climate simulations as scientists develop more sensitive and sophisticated projections of how the Earth will respond to increasing levels of carbon dioxide in the atmosphere. Researchers at Princeton University and the University of Miami reported that newer models with a high “climate sensitivity” — meaning they predict much greater global warming from the same levels of atmospheric carbon dioxide as other models — do not provide a plausible scenario of Earth’s fut
  2. The Indian Space Research Organisation opened its space calendar 2021 with the successful launch of PSLV-C51 carrying Amazonia-1 and 18 other satellites on Sunday. PSLV-C51 carrying Amazonia-1, an optical earth observation satellite from Brazil, and 18 other satellites lifted off from the first launch pad at Satish Dhawan Space Centre in Sriharikota at 10.24am. Around 17 minutes after lift-off and one minute after the PS4 engine cut-off, PSLV placed its primary payload -- 637kg weighing Amazonia-1 – in a sun synchronous polar orbit. After placing Amazonia-1 in the orbit, the rocket coas
  3. February 18, 2021 Each year more than 180 million tons of dust blow out from North Africa, lofted out of the Sahara Desert by strong seasonal winds. Perhaps most familiar are the huge, showy plumes that advance across the tropical Atlantic Ocean toward the Americas. But the dust goes elsewhere, too—settling back down in other parts of Africa or drifting north toward Europe. A dramatic display of airborne dust particles (above) was observed on February 18, 2021, by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the NOAA-20 spacecraft. The dust appears widespread, but
  4. From earthworms to nematodes, from mites to insect larvae, and fungi to bacteria, there are more than 7,000 types of species in our soils. According to The German Center for Integrative Biodiversity, you can find up to 1.5 kilograms of organisms living under a single square meter. These hidden cities full of thousands of creatures, known as soil organisms, are crucial to creating nutrients from dead plants and animals to keep our soil healthy and grow new plant life. Without healthy nutritious soil, no new life can begin; no plants, no trees, and thus no crops. Without them, our env
  5. Etna produced a very spectacular lava-fountaining eruptive episode, known as paroxysm. Starting from around 5 p.m. local time in the afternoon, the strombolian activity, which had been going on for the past weeks from the New SE crater intensified significantly. Shortly after, a lava overflow was observed from the eastern side of the South East crater. At 16:05 UTC (5:05 p.m. local time), a part of the eastern flank of the cone collapsed into a pyroclastic flow that traveled down the western wall of the Valle del Bove depression. The flow, as hot material was sliding over snow, produced an a
  6. wireless electricity ? 😁 add: maybe out of the scope but i always imagine that electricity could transfer all over the earth using satellite, 😅 this will huge leap for us
  7. can you give us detail, what version of sarscape, and envi you using it?
  8. Google Maps for Android is one of the most actively developed Google apps, with new features and improvements routinely being added to the navigation app. In the last two months alone, the app has gained quite a few functionalities, including a new community feed, a Go tab for accessing frequently visited places, messaging for verified businesses, a new driving mode, and food delivery alerts. The app will also soon start showing COVID-19 vaccine locations in the US. Now the Google Maps on Android is picking up a new split-screen UI that makes it easier to navigate in the Street View mode. This
  9. You’d be forgiven for thinking that receiving data transmissions from orbiting satellites requires a complex array of hardware and software, because for a long time it did. These days we have the benefit of cheap software defined radios (SDRs) that let our computers easily tune into arbitrary frequencies. But what about the software side of things? As [Dmitrii Eliuseev] shows, decoding the data satellites are beaming down to Earth is probably a lot easier than you might think. Well, at least in this case. The data [Dmitrii] is after happens to be broadcast from a relatively old fleet of s
  10. i only can thing one way, make direct edit on the database, adding the coordinate on the table rarely using qgis, but is it possible to make direct editing on qgis? if qgis capable to do such thing with postgresql, seems there is a way, but im not sure
  11. so you want to add another point in existing postgres database? or you want to load point from postgres database?
  12. Emlid has debuted the Reach RS2, a fully-featured multi-band RTK receiver. All of its features are available out of the box, along with a survey app for iOS and Android. The Reach RS2 tracks L1/L2 bands on GPS, GLONASS and BeiDou, and L1/L5 on Galileo, and acquires a fixed solution in seconds. It achieves centimeter-level precision for surveying, mapping and navigation and maintains robust performance even in challenging conditions. Centimeter accuracy can be achieved on distances up to 60 km in RTK and 100 km in PPK mode. Up to 22 hours of autonomous work when logging data and up to
  13. Until recently, there have been no clear assessment of how much CO2 and the role that soils contribute in emissions relative to other greenhouse gases. Now a global scale map using statistical models and satellite imagery, along with other work by scientists, is beginning to indicate how much land use and soil change can affect our planet’s climate. In a recent study, a series of machine learning models using multiple nonlinear regression (MNLR), random forest regression (RFR), support vector regression (SVR), and artificial neural network (ANN) were assessed for determining Rs datasets
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