climate environmental changes and remote sensing

... spatial data on land use/land covers However, recently GIS and remote sensing has been using in several types of works in both government and private agencies As we know, GIS and remote sensing have ... paddy Bare land Shrub land/other Hectares 14000 Irrigated paddy (dry season) 12000 Area (ha) 1999 Land use types Land use/land cover changes from 1999 to 2004 Reservoir 10000 Bare land/wet soil ... Statement of problems Objectives Materials and Methods Study area Results and Discussions Conclusions Introduction • In the last decade, in Laos GIS and Remote sensing (RS) has not much used in countrywide,...

Ngày tải lên: 17/03/2014, 11:20

... provided, and applied through, a geographic information system (GIs) and remote sensing Better spatial information and maps leads to improved planning and decision making at all levels and scales, and ... Copyright 2002 Andrew Skidmore Introduction and government organizations All were concerned with the management and implementation of G I s and remote sensing, and specifically how environmental ... El Nino, climate and weather prediction, ocean mapping and monitoring, wetland degradation, vegetation mapping, soil mapping, natural disaster and hazard assessment and mapping, and land cover...

Ngày tải lên: 12/08/2014, 02:22

... Figure 2.2a Copyright 2002 Andrew Skidmore Environmental Modelling with CIS and Remote Sensing 2.3.3 Discussion Both inductive and deductive methods have been used for environmental modelling However, ... data handling (GIs and remote sensing) in the environmental sciences As stated in 2.2, some models are a mix of methods; a good example of a mix of inductive and deductive methods is a global climate ... between 0.6 and 1.5 Other examples of Copyright 2002 Andrew Skidmore 16 Environmental Modellins with CIS and Remote Sensing empirical models where thresholds are used include CART (see 2.3.2) and BIOCLIM...

Ngày tải lên: 12/08/2014, 02:22

... resolution: 30 m (PAN: 15 m, band 6: 60 m) Spectral bands (pm): band 0.45-0.52; band 0.52-0.60; band 0.63-0.69; band 0.76-0.90; band 1.55-1.75; band 10.4-12.50; band 2.08-2.35; band (PAN) 0.50-0.90 Field ... Spatial resolution TM: 30 m (band 6:120 m) Spectral bands TM (pm): band 0.45-0.52; band 0.52-0.60; band 0.63-0.69; band 0.76-0.90; band 1.55-1.75;band 10.4-12.50; band 2.08-2.35 Field of view (FOV): ... single visible and near infrared channels Band looks at gelbstoffe, bands and at chlorophyll, band at pigment, band at suspended sediments Bands , and look at atmospheric aerosols, and are provided...

Ngày tải lên: 12/08/2014, 02:22

... Salli, K Anderson, K and Lohi, A,, 1997, International Journal of Remote Sensing, 18, 321 1-3243 Copyright 2002 Andrew Skidmore Application o f remote sensing and CIS in wildllfe mapping and modelling ... classifications of remotely sensed data Renzote Sensing of Environment, 37, 35- 46 Copyright 2002 Andrew Skidmore 138 Environmental Modelling with CIS and Remote Sensing Congalton, R.G., Stenback, J.M and Barrett, ... GIs and remote sensing Photogrammetric Engineering and Remote Sensing, 59, 1531-1538 Hilborn, R and Sinclair, A.R.E., 1979, A simulation of the wildebeest population, In: other ungulates and...

Ngày tải lên: 12/08/2014, 02:22

... Copyright 2002 Andrew Skidmore Environmental Modelling with CIS and Remote Sensing 174 on vegetation and surface conditions available from high-resolution remote sensing (e.g Landsat and Spot) However, ... Copyright 2002 Andrew Skidmore Environmental Modelling with GIS and Remote Sensing 196 spatial and temporal scales between the processes we need to mimic and the availability of data Remote sensing ... means of remote sensing methods (Otterman and Fraser 1976; Wanner et al 1995) Two problems, though, are associated with remote sensing methods Firstly, remote sensing systems (e.g Landsat T M...

Ngày tải lên: 12/08/2014, 02:23

... management project and Copyright 2002 Andrew Skidmore Environmental Modelling with CIS and Remote Sensing 208 should supply planners and decision-makers with adequate and understandable information ... wildland fire planning Fire Techrzology, 25, 5-23 Copyright 2002 Andrew Skidmore 224 Environmental Modelling with GIS and Remote Sensing Hamrnond, C.J., Prellwitz, R.W and Miller, S.M., 1992, Landslide ... improved monitoring and prediction of heavy rainfall and related events Remote Sensing Reviews, 14, 282 Copyright 2002 Andrew Skidmore Remote sensing and geographic information systems.for natural...

Ngày tải lên: 12/08/2014, 02:23

... radar) (4) Remote sensing image interpretation (3) User-friendly G I s and remote sensing packages and specific software tools (2) There are commercial systems available for GIS and remote sensing ... functionality Nevertheless, remote sensing image processing still requires specific software and hardware to be able to process data over large areas and to handle the new types of remote sensing data (see ... that remote sensing image interpretation is still a problem; this perhaps partly reflects the fact that the course Copyright 2002 Andrew Skidmore 256 Environmental Modelling with CIS and Remote Sensing...

Ngày tải lên: 12/08/2014, 02:23

... the land cover changes was checked Accessibility and slope showed a correlation, and we are thus able to explain ix changes in land cover Elevation in fact is linked with the land cover changes ... Land cover The land cover data was provided by the Ministry of Agriculture and Forestry (MAF) and represents the land cover in 2002 The dataset is part of a forest cover and land use changes assessment ... above.6 • Main rivers and lakes: Within the landscape rivers and lakes have two different functions On one hand they are natural barriers separating landscapes, and on the other hand they can serve...

Ngày tải lên: 17/03/2014, 11:20

... Peñaherrera and Sandra Merayo Chapter Estimation of Above-Ground Biomass of Wetlands Laimdota Truus Chapter Soil Microbial Biomass Under Native Cerrado and Its Changes After the Pasture and Annual ... Maděra, Diana Lopéz and Martin Šenfeldr 75 VI Contents Part Remote Sensing of Biomass 127 Chapter Introduction to Remote Sensing of Biomass 129 Muhammad Aqeel Ashraf, Mohd Jamil Maah and Ismail Yusoff ... Extent and the Impact with Remote Sensing and GIS Tasneem Abbasi, K.B Chari and S A Abbasi Chapter 10 Part 171 Application of Artificial Neural Network (ANN) to Predict Soil Organic Matter Using Remote...

Ngày tải lên: 19/06/2014, 12:20

... Biomass and Remote Sensing of Biomass There are two general aspects in the case of nutrient status in observed larch stand First, in contrast to blue spruce and birch stand, larch stand was established ... for 8-year-old stand (Uri et al., 2009), 20-66 t.ha-1 (on fine sand) and 31-53 t.ha-1 (on clay soil) for 12-year-old stand (Johansson, 2007) and 40 t.ha-1 for 14-year-old stand (Varik et al., ... growth and carrying capacity The trade-off between seed size and seed number has been used as an explanation for difference in competition and colonization abilities of 14 Biomass and Remote Sensing...

Ngày tải lên: 19/06/2014, 12:20

... the Mexican lowlands, the Caribbean islands, and southern Florida, because these regions share a large number of plant and animal groups The climate of savannas is warm year-round, and has two distinct ... and Remote Sensing of Biomass April and November and an intense drought to months long between December and April The Llanos have typical savanna physiognomy consisting of an open tree layer and ... have fast growth, easy to propagate and often N fixers while grasses 36 Biomass and Remote Sensing of Biomass display aspects of higher resource use efficiency and greater tolerance to grazing Ecological...

Ngày tải lên: 19/06/2014, 12:20

... Biomass and Remote Sensing of Biomass Scholes, R.J & Hall, D (1996) The carbon budget of tropical savannas, woodlands and grasslands In: Global change, effects on coniferous forest and grasslands ... between each of these and phytoplankton biomass (estimated as chlorophyll a), and between all these variables and the trophic state of the reservoirs 70 Biomass and Remote Sensing of Biomass Due ... grey areas in our understanding of invasive species in savannas Firstly the implications of the current rapid land use changes in savannas and their interaction with the climate change effects...

Ngày tải lên: 19/06/2014, 12:20

... 300 England and Wales Rich-fen meadow ~ 500 England and Wales Cladio–Molinietum ~ 600 England and Wales Peucedano–Phragmitetum ~ 700 England and Wales Angelico–Phragmitetum ~ 850 England and Wales ... Dry standing biomass (g m-2) St.Dev in parentheses England and Wales Schoeno–Juncetum ~ 200 England and Wales Acrocladio–Caricetum ~ 200 England and Wales Potentillo–Caricetum ~ 200 England and ... Cicuto–Phragmitetum ~ 1200 England and Wales Phragmites consociation ~ 1300 England and Wales Glyceria maxima community ~ 1500 England and Wales Tall herb fen ~ 1750 England and Wales Phalaris arundinacea...

Ngày tải lên: 19/06/2014, 12:20

... be adjusted for variations in bulk density (BD) after land use changes Therefore, the methodology described 98 Land use Biomass and Remote Sensing of Biomass Cultivation period Main crop Winter ... Cerrado and Its Changes After the Pasture and Annual Crops Introduction 103 Fig MB-N:Ntotal ratio (%) in dry and rainy season Situations evaluated: Cerrado (CE), Conventional tillage (1CTand 2CT) and ... (2000) Impact of conversion of Brazilian Cerrados to cropland and pasture land on soil carbon pool and dynamics In: Global climate change and tropical ecosystems, R Lal; J.M Kimble; B.A Stewart...

Ngày tải lên: 19/06/2014, 12:20

... collection of remotely sensed data and offers an inexpensive way to obtain information over large areas The capacity of remote sensing to identify and monitor land surfaces and environmental ... greatest production was exhibited by clones 'B44', 'V093' and 'V052' (10.2, 9.2 and 9.1 t*ha-1, respectively) 126 Biomass and Remote Sensing of Biomass Based on the obtained results, from the ... Oceans and Land Vegetation The oceans cover ~70% of the Earth's surface; land comprises 30% On the land itself, the first order categories break down as follows: Trees = 30%; Grasses = 30%; Snow and...

Ngày tải lên: 19/06/2014, 12:20

... vegetation, darker greens are stronger vegetation 1.9 Background on remote sensing 1.9.1 Remote sensing Remote sensing is the science and art of obtaining information about an object, area or phenomenon ... "true" colours of the targets For example, the bands (red band), (green band) and (blue band) of a AVHRR image can be assigned respectively to the R, G, and B colours for display In this way, the ... 144 Biomass and Remote Sensing of Biomass information gathering device or method where the object of observation is remote from the device Out of a number of devices involved in remote sensing, ...

Ngày tải lên: 19/06/2014, 12:20

... blue and, especially red, bands, somewhat lighter in the green band, and notably light in the near-IR bands (maximum in Landsat's Multispectral Scanner Bands and and Thematic Mapper Band and SPOT's ... on land surfaces and, in some instances, within the oceans and other water bodies Thus, we can continually assess changes in forests, grasslands and range, shrub lands, crops and orchards, and ... Type and Maturity, Photogrammetric Engineering and Remote Sensing, 44, 43-55 Curran, P J (1989) Remote sensing of foliar chemistry, Remote Sensing of Environment, 30, 271-278 Curtiss, B and Goetz,...

Ngày tải lên: 19/06/2014, 12:20

... Assessment of the Extent and the Impact with Remote Sensing and GIS Fig Ipomoea in Oussudu lake (above) and a closer view of the weed (below) 177 178 Biomass and Remote Sensing of Biomass iii The ... analysis at two selected sites under rangeland and forested land in central and western Iran, respectively 184 Biomass and Remote Sensing of Biomass Methods and materials 2.1 Description of the studied ... regression analysis, the output showed that the frequency of band2 and NDVI for site and NDVI and band1 for site Band and have negative relationship and NDVI has positive relationship with soil organic...

Ngày tải lên: 19/06/2014, 12:20

... SOM in rangeland and 0.09 and 0.13 for the forested area using MLR On the other hand, ANN improved the MAE and RMSE to 0.09 and 0.12 for rangeland and 0.01 and 0.09 for forested land, respectively ... floodplain soils with VHSR remote sensing data and additional geoinformation Proceedings of the remote sensing and photogrammetry society conference remote sensing and the carbon cycle, Burlington ... rangeland and forested areas The results showed that the MLR and ANN models explained 54 and 84 % of the total variability in SOM, respectively, in the rangeland site 194 Biomass and Remote Sensing...

Ngày tải lên: 19/06/2014, 12:20