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
专注的乌冬面完成签到,获得积分10
刚刚
ccq发布了新的文献求助10
1秒前
1秒前
勤劳的老九应助苹果摇伽采纳,获得10
1秒前
qwe发布了新的文献求助10
1秒前
柯基完成签到 ,获得积分10
4秒前
康嘉完成签到 ,获得积分10
4秒前
5秒前
5秒前
djam发布了新的文献求助10
6秒前
7秒前
7秒前
复杂依萱完成签到,获得积分20
8秒前
聪明面包发布了新的文献求助200
8秒前
一一发布了新的文献求助10
9秒前
开心绫发布了新的文献求助10
10秒前
11秒前
11秒前
babulao完成签到,获得积分10
12秒前
13秒前
情怀应助刘旋采纳,获得10
13秒前
13秒前
小小橙发布了新的文献求助10
14秒前
刘子琪发布了新的文献求助10
15秒前
顾矜应助可乐加冰采纳,获得10
16秒前
morena发布了新的文献求助30
17秒前
清脆涔发布了新的文献求助10
17秒前
自然剑发布了新的文献求助10
18秒前
研友_J8D23n发布了新的文献求助10
18秒前
19秒前
NexusExplorer应助222采纳,获得10
20秒前
希望天下0贩的0应助mitty采纳,获得10
21秒前
22秒前
26秒前
研友_Z1WrgL发布了新的文献求助10
26秒前
复杂依萱发布了新的文献求助30
27秒前
Jaydonnn完成签到,获得积分10
27秒前
28秒前
29秒前
脑洞疼应助义气萝卜头采纳,获得10
29秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3976235
求助须知:如何正确求助?哪些是违规求助? 3520399
关于积分的说明 11203166
捐赠科研通 3256989
什么是DOI,文献DOI怎么找? 1798580
邀请新用户注册赠送积分活动 877738
科研通“疑难数据库(出版商)”最低求助积分说明 806516