In recent years，As one of the major greenhouse gases，bet365 mobile in Arctic region attract widespread concern。US researchers recently conducted a study using high-resolution satellite and airborne imaging technology，Provides new insights into how Arctic lakes and wetlands actually release methane into the atmosphere。Relevant research was recently published in "Geophysical Research Letters"，The author is Ethan D, a postdoctoral researcher in the Department of Earth and Planetary Sciences at Harvard University, USA.Ethan D. Kyzivat) and Brown University Earth、Lawrence C, Professor, Department of Environmental and Planetary Sciences.Smith (Laurence C. Smith）。

The Arctic region is warming significantly faster than the global average，Becoming one of the fastest-heating regions in the world。Therefore，Accurate tracking of bet365 mobile in the region is critical。This new study uses high-resolution satellite and airborne imaging technology provided by NASA，Overcoming the difficulties caused by the huge scale and complex natural landforms of the Arctic region，Provides more accurate data for methane emission estimates from small lakes。Research focuses on lakes approximately 1/10 square kilometer or smaller，To avoid overestimating its actual bet365 mobile。

This new research result contradicts past research results。Compared with previous research based on low-resolution data sets，New research results show，The number of small lakes not recorded on the map is far lower than expected，Significantly reduces its share of overall bet365 mobile。Specifically，Some researchers previously thought，Small lakes account for about 40% of bet365 mobile in the Arctic，This number is actually only 3%。In addition，Researchers found，Smaller lakes are larger sources of bet365 mobile per unit area。

Kozweit pointed out，Research shows，Although these smaller lakes occupy only a small area of ​​the landscape，Their emission levels are disproportionate。Traditionally，People lack a clear understanding of how much area small lakes occupy，New high-resolution data set helps researchers make more accurate estimates。Old data，The number of small lakes that can be seen is calculated by statistics，To estimate the total number of unmapped small lakes in the region and the amount of methane they emit。Researchers’ new analysis of aerial images shows，There are far fewer unmapped small lakes than previously estimated，Significantly lowered estimates of the total amount of methane they emit。Research results provide support for effectively updating understanding of bet365 mobile。

This research project originally aimed to find hidden lakes in the Arctic，But as researchers examine the data more closely，This plan has changed。The study combines high-resolution airborne data with global maps involving lakes in the Arctic，I made some unexpected but delightful discoveries。For example，Research shows，Many lakes are still double counted as wetlands，This double counting increases estimates of bet365 mobile in the region。Combined with the number of unmapped small lakes identified in this study，Researchers think，Scale of emissions smaller than previously thought。

Another unexpected finding of the research involves the methodological level。In the field of methane modeling，There are two widely accepted estimation methods。One is the "bottom-up" estimation，That is, simulating bet365 mobile based on the map，As Kozvet and Smith did in this study。Another approach is “top-down” estimation，That is, simulating bet365 mobile based on atmospheric measurements。According to Smith，Over the past 10 years，There are troubling differences in data produced by two different methods，New data from this study may help narrow the differences between the two methods，Thereby reconciling it。Smith said，“There may have been a stalemate for 15-20 years，But the conclusion is，High-resolution satellite solutions now enable researchers using a ‘bottom-up’ approach to better understand how much methane is actually being emitted。”He also added，Now one can actually see the smallest of these bodies of water，Their number is not as abundant as once estimated。The end result of all this will be lower estimates under the “bottom up” approach，Make results more consistent with “top-down” estimates。This will unite the two research communities。Therefore，Researchers hope to use this work as a proof of concept，and expand their methane modeling techniques to other parts of the world。

This study not only corrects previous errors in estimates of bet365 mobile from Arctic lakes and wetlands，And a possible explanation for the contradiction between two commonly used modeling methods。Due to the improvement of satellite resolution，A “bottom-up” modeling approach will be more accurate，It is expected to promote the unification of the two methods。Future research could focus on extending the application of this methane modeling technique to a global scale，To gain a more comprehensive understanding of the dynamic process of bet365 mobile on Earth。 (Chu Guofei/Compiled)