Analysis of the Taquari Megafan through radiometric indices

植被(病理学) 辐射定年 水分 地质学 水文学(农业) 洪水(心理学) 环境科学 自然地理学 遥感 地理 气象学 心理学 医学 病理 岩土工程 心理治疗师
作者
Luciana Escalante Pereira,Edward Lo,Antônio Conceição Paranhos Filho
出处
期刊:Journal of South American Earth Sciences [Elsevier BV]
卷期号:119: 104034-104034 被引量:3
标识
DOI:10.1016/j.jsames.2022.104034
摘要

The complex landscapes of tropical monsoonal lowlands make water resource estimates difficult, given sparsely distributed monitoring networks. Satellite radiometry has facilitated increased access to environmental data. Here, we use radiometric indices to analyze the Taquari megafan and identify features of the Pantanal subregions that characterize it. Recent periods of strong droughts and floods were selected in the region for statistical analysis using the following radiometric indices: NDWI-Gao, NDWI-McFeeters and MNDWI. The behavior of the NDWI-Gao showed that the Paiaguás and Nhecolândia subregions had similar vegetation moisture values in 2011 and 2012, but surprisingly, the two subregions did not attain maximum values of vegetation moisture higher than values in the Taquari subregion during severe flooding in 2011. The Paiaguás and Nhecolândia subregions were more correlated in terms of vegetation moisture than open water features. The MNDWI analysis of the Taquari subregion, however, revealed the highest levels of liquid water in the vegetation and the highest values for water bodies/courses. The permanently flooded state of the Taquari subregion may explain why the vegetation appears to be moister in the NDWI-Gao. The NDWI-Gao data were consistent for dry vegetation in 2020, recording values of −0.7, while other dry periods such as 2010 and 2013 recorded values of −0.4. The vegetation responded quickly to the alternation of drought/flood cycles, registering high values of liquid water content in the period 2011–2012 and reduced values in 2012–2013.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
葳葳完成签到,获得积分10
刚刚
sl发布了新的文献求助10
3秒前
3秒前
sanqian911完成签到,获得积分10
4秒前
昏睡的蟠桃应助liars采纳,获得150
5秒前
斯文败类应助荒野风采纳,获得10
5秒前
5秒前
hrzmlily完成签到,获得积分10
7秒前
顽主完成签到,获得积分10
8秒前
义气访曼完成签到 ,获得积分10
9秒前
时尚战斗机完成签到,获得积分10
9秒前
11秒前
亦玉完成签到,获得积分10
11秒前
Philadelphus完成签到,获得积分20
13秒前
13秒前
wsh完成签到 ,获得积分10
14秒前
luyue9406完成签到,获得积分10
14秒前
luochen完成签到,获得积分10
14秒前
酷波er应助奶黄包采纳,获得10
15秒前
ROMANTIC完成签到 ,获得积分10
15秒前
Hancock完成签到 ,获得积分10
16秒前
luyue9406发布了新的文献求助10
17秒前
Akim应助小王采纳,获得10
17秒前
甜蜜的楷瑞应助zqfxc采纳,获得10
19秒前
Hello应助花雨落123采纳,获得10
21秒前
22秒前
23秒前
柚仝完成签到 ,获得积分10
23秒前
贾明灵完成签到,获得积分10
23秒前
未来学术司马懿应助LIUYONG采纳,获得10
24秒前
Dops完成签到,获得积分10
26秒前
票子发布了新的文献求助10
27秒前
晚风完成签到 ,获得积分10
27秒前
坚强莺发布了新的文献求助10
27秒前
无奈曼云完成签到,获得积分10
28秒前
不会吹口哨完成签到,获得积分10
28秒前
易槐完成签到,获得积分10
29秒前
情怀应助和谐的梦蕊采纳,获得10
29秒前
30秒前
喜悦的飞机完成签到,获得积分10
31秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038426
求助须知:如何正确求助?哪些是违规求助? 3576119
关于积分的说明 11374556
捐赠科研通 3305834
什么是DOI,文献DOI怎么找? 1819339
邀请新用户注册赠送积分活动 892678
科研通“疑难数据库(出版商)”最低求助积分说明 815029