Using Landsat Imagery to Assess Burn Severity of National Forest Inventory Plots

نویسندگان

چکیده

As the frequency and size of wildfires increase, accurate assessment burn severity is essential for understanding fire effects evaluating post-fire vegetation impacts. Remotely-sensed imagery allows rapid severity, but it also needs to be field validated. Permanent forest inventory plots can provide information validation remotely-sensed metrics, although there often a mismatch between shape plot resolution rasterized images. For this study, we used two distinct datasets: (1) ground-based data from United States national calculate severity; (2) Monitoring Trends in Burn Severity (MTBS) database different metrics based on six weighting scenarios. Our goals were test which MTBS metric would best align with observed ground, identify superior scenarios extract pixel values raster image order match plots. We fitted logistic ordinal regression models predict averaged Among scenarios, assigned weights pixels area that intersected any parts plot. Based our analysis, 9-pixel weighted averages Relative differenced Normalized Ratio (RdNBR) predicted Finally, specific present link other Landsat-derived remote sensing

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mapping burn severity in a disease-impacted forest landscape using Landsat and MASTER imagery

Global environmental change has increased forest vulnerability to the occurrence of interacting disturbances, including wildfires and invasive diseases. Mapping post-fire burn severity in a disease-affected forest often faces challenges because burned and infested trees may exhibit a high similarity in spectral reflectance. In this study, we combined (preand post-fire) Landsat imagery and (post...

متن کامل

A Multivariate Approach to Mapping Forest Vegetation and Fuels Using Gis Databases, Satellite Imagery, and Forest Inventory Plots

Knowing the types and amounts of fuels at a site is an important prerequisite to evaluating fire risk, predicting fire behavior, and assessing potential fire effects. When these assessments are expanded to larger extents, the spatial configuration of the landscape fuel mosaic must also be considered (Keane et al. 2000: Keane et al. 1998). Spatial patterns of fuels, topography, and wind all inte...

متن کامل

Determining relative contributions of vegetation and topography to burn severity from LANDSAT imagery.

Fire is a dominant process in boreal forest landscapes and creates a spatial patch mosaic with different burn severities and age classes. Quantifying effects of vegetation and topography on burn severity provides a scientific basis on which forest fire management plans are developed to reduce catastrophic fires. However, the relative contribution of vegetation and topography to burn severity is...

متن کامل

Using Landsat imagery to map forest change in southwest China in response to the national logging ban and ecotourism development

a Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, 1630 Linden Drive, Madison, WI, United States b Geography Department, Humboldt-University Berlin, Unter den Linden 6, 10099 Berlin, Germany c Earth System Analysis, Potsdam Institute for Climate Impact Research (PIK), PO Box 60 12 03, Telegraphenberg A62, D-14412 Potsdam, Germany d Biodiversity Impact Assessment, Rese...

متن کامل

Burn Severity Mapping Using Simulation Modeling and Satellite Imagery

As wildfires becomes an increasingly important issue affecting our nation’s landscapes, fire managers must quickly assess possible adverse fire effects to efficiently allocate resources for rehabilitation or remediation. While burn severity maps derived from satellite imagery can provide a landscape view of relative fire impacts, fire effects simulation models can also provide spatial fire seve...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Remote Sensing

سال: 2021

ISSN: ['2315-4632', '2315-4675']

DOI: https://doi.org/10.3390/rs13101935